Measurement of the Azimuthal Angle Dependence of Inclusive Jet Yields in Pb plus Pb Collisions at root s(NN)=2.76 TeV with the ATLAS Detector

18  Download (0)

Full text


Measurement of the Azimuthal Angle Dependence of Inclusive Jet Yields in

Pb þ Pb Collisions






¼ 2:76 TeV with the ATLAS Detector

G. Aad et al.* (ATLAS Collaboration)

(Received 26 June 2013; published 9 October 2013)

Measurements of the variation of inclusive jet suppression as a function of relative azimuthal angle, , with respect to the elliptic event plane provide insight into the path-length dependence of jet quenching. ATLAS has measured the dependence of jet yields in 0:14 nb1 of ffiffiffiffiffiffiffiffisNN

p ¼ 2:76 TeV Pb þ Pb collisions at the LHC for jet transverse momenta pT> 45 GeV in different collision centrality

bins using an underlying event subtraction procedure that accounts for elliptic flow. The variation of the jet yield with was characterized by the parameter, vjet2 , and the ratio of out-of-plane (  =2) to in-plane (  0) yields. Nonzero vjet2 values were measured in all centrality bins for pT< 160 GeV. The

jet yields are observed to vary by as much as 20% between in-plane and out-of-plane directions. DOI:10.1103/PhysRevLett.111.152301 PACS numbers: 25.75.q Studies of jet production inPb þ Pb collisions at the LHC

[1,2] show behavior consistent with ‘‘jet quenching,’’ a general term for the modification of parton showers in the hot dense medium created in ultrarelativistic nuclear colli-sions. For example, the inclusive yield of jets was observed to be suppressed by a factor of approximately 2 in central Pb þ Pb collisions relative to peripheral collisions [3], con-sistent with a medium-induced reduction in the jet energies. Perturbative or weak-coupling calculations model jet energy loss, dE=dx, through a combination of collisional and radia-tive energy loss of the partons traversing the medium. The radiative contributions are subject to coherence effects [4] that explicitly depend on the in-medium path length of the parton. Strong-coupling calculations also have an explicit path-length dependence that differs from that predicted by weak-coupling calculations [5,6]. Measurements of the jet yield as a function of quantities providing indirect control over the jet path lengths may provide insight into the physical mechanisms responsible for jet quenching [7,8]. Such quan-tities include thePb þ Pb collision centrality and the azimu-thal angle of the jet with respect to the elliptic event plane.

Elliptic flow refers to acos2  modulation of the azimu-thal angle () distribution of particles produced in ultra-relativistic nuclear collisions [9]. This modulation is understood to arise from an approximately elliptic anisot-ropy of the initial-state transverse energy density profile that is imprinted on the azimuthal angle distribution of final-state particles [10] by the strong collective evolution of the medium. The resulting azimuthal angle distribution is often parametrized by the form


d / 1 þ 2v2cos2 ð  2Þ; (1) where the elliptic event plane angle, 2, specifies the orientation of the initial density profile in the transverse plane, and the parameter v2 quantifies the magnitude of

the modulation. Jets measured at different azimuthal angles relative to the event plane,   jet 2, result from partons that traverse, on average, different path lengths and density profiles in the medium. Thus, a measurement of the variation of the jet yield as a function of  should provide a direct constraint on theoretical models of the path-length dependence of the energy loss. This mea-surement is not directly sensitive to potential variations in the jet yield with respect to higher-order event plane angles. Such variations may result from fluctuations in the initial geometry that also give rise to higher-order flow harmonics [11–13].

Variations in jet yield as a function of  have been observed indirectly through measurements of single had-rons with large transverse momentum (pT) at the RHIC

[14–16] and the LHC [17–19]. The utility of such mea-surements is limited by the weak relationship between hadron pT and the transverse momentum of the parent

parton shower. This Letter presents the results of measure-ments using fully reconstructed jets, which have kinematic properties that are more closely related to those of the parent partons. The  dependence of the inclusive jet yield was measured in pffiffiffiffiffiffiffiffisNN ¼ 2:76 TeV Pb þ Pb

colli-sions as a function of jet pTandPb þ Pb collision

central-ity. The measurement was performed with the anti-kt

algorithm [20] with distance parameter R ¼ 0:2, chosen to limit the contribution of the underlying event (UE) to the measurement. The  dependence was characterized by the jet v2, vjet2 , and the ratio of out-of-plane (3=8 

  =2) to in-plane (0   < =8) jet yields at

*Full author list given at the end of the article.

Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distri-bution of this work must maintain attridistri-bution to the author(s) and the published article’s title, journal citation, and DOI.


fixed pTand centrality. Such dependence is expected to be

small in either the most central or most peripheral colli-sions, due to the lack of initial-state anisotropy and the lack of quenching, respectively. For intermediate centralities, measurement of the  dependence of the jet yields probes the interplay between dependence of quenching on the overall system size and energy density, as well as on the initial-state anisotropy.

The measurements presented here were performed with the ATLAS detector [21] using its calorimeter, inner detec-tor, trigger, and data acquisition systems. The calorimeter system consists of a liquid-argon electromagnetic (EM) calorimeter coveringjj < 3:2, a steel-scintillator sampling hadronic calorimeter covering jj < 1:7, a liquid-argon hadronic calorimeter covering 1:5 < jj < 3:2, and a forward calorimeter (FCal) covering 3:2 < jj < 4:9. Charged-particle tracks were measured over the range jj < 2:5 using the inner detector [22], which is composed of silicon pixel detectors in the innermost layers, followed by silicon microstrip detectors and a straw-tube transition-radiation tracker (jj < 2:0), all immersed in a 2 T axial magnetic field. The zero-degree calorimeters (ZDCs) are located symmetrically at z ¼ 140 m and cover jj > 8:3. In Pb þ Pb collisions the ZDCs primarily mea-sure noninteracting ‘‘spectator’’ neutrons from the incident nuclei. A ZDC coincidence trigger was defined by requiring a signal consistent with one or more neutrons in each of the calorimeters.

Pb þ Pb collisions corresponding to a total integrated luminosity of0:14 nb1were analyzed. The events were recorded using either a minimum-bias trigger, formed from the logical OR of triggers based on a ZDC coincidence or total transverse energy in the event, or a jet trigger imple-mented using the Pb þ Pb jet reconstruction algorithm. The jet trigger selected events having at least one jet with transverse energy ET > 20 GeV. Event selection

and background rejection criteria were applied [17] yield-ing 52  106 and 14  106 events in the minimum-bias and jet-triggered samples, respectively. For each event,2 was computed from the azimuthal distribution of the trans-verse energy measured in the FCal [17,23], and angles with respect to 2 were defined over 0    =2. The centrality of Pb þ Pb collisions was characterized by EFCal

T , the total transverse energy measured in the FCal

[17]. The results reported here were obtained using the following centrality intervals defined according to succes-sive percentiles of theEFCalT distribution ordered from the most central (highestEFCalT ) to the most peripheral colli-sions: 5%–10%, 10%–20%, 20%–30%, 30%–40%, 40%–50%, and 50%–60%. The centrality interval 5%–60% coincides to the range over which the2 reso-lution is adequate for the measurement. A Glauber model analysis [24,25] of theEFCalT distribution [17] was used to evaluate the average number of nucleons participating in the collision,hNparti, in each centrality interval.

The jet reconstruction and underlying event subtraction procedures are the same as those used in Ref. [3], which is summarized in the following. The anti-kt algorithm

was applied to calorimeter towers with segmentation    ¼ 0:1  0:1. A two-step iterative procedure was used to obtain an event-by-event estimate of the aver-age -dependent UE energy density while excluding actual jets from that estimate. The jet kinematics were obtained by subtracting the UE energy from the towers within the jet. This subtraction accounts for elliptic flow by modulat-ing the average background density by the magnitude of the elliptic flow measured by the calorimeter, vcalo2 , over the intervaljj < 3:2 and excluding  regions containing jets. Following reconstruction, the jet energies were cor-rected to account for the calorimeter energy response using an - and ET-dependent multiplicative factor that was

derived from Monte Carlo (MC) simulations [26]. Separate from the calorimeter jets, ‘‘track jets’’ were reconstructed by applying the anti-kt algorithm with

R ¼ 0:4 to charged particles having pT> 4 GeV. The pT

of the track jets, ptrkjetT , is largely unaffected by the UE due to the pT> 4 GeV requirement. To exclude the

con-tribution to the jet yield from UE fluctuations of soft particles falsely identified as calorimeter jets, the jets used in this analysis were required to be within R ¼

ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi 2þ 2


¼ 0:2 of a track jet with ptrkjetT > 10 GeV or an EM cluster [27] with pT> 9 GeV.

The performance of the jet reconstruction was evaluated using the GEANT4-simulated detector response [28,29] in a MC sample of pp hard scattering events at pffiffiffiffiffiffiffiffisNN ¼

2:76 TeV. The events were produced with the PYTHIA event generator [30] version 6.423 using the AUET2B tune [31] and overlaid on minimum-bias Pb þ Pb colli-sions recorded by ATLAS. Through this embedding pro-cedure, the MC sample contains a UE contribution that is identical in all respects to the data, including azimuthal modulation of the UE due to harmonic flow. Jets recon-structed in the MC events using the same algorithms as applied to data were compared to generator-level jets reconstructed from final-state PYTHIA hadrons. Potential variations in the jet energy resolution (JER) and jet energy scale (JES) with  due to elliptic and higher-order modulation [11–13] of the UE were investigated in the MC sample; no significant variation was found.

The dependence of the JES on  was further con-strained by comparing the calorimeter jets to matched track jets in the data. For different values of, the mean pTof calorimeter jets was evaluated as a function of the pTof the

matched track jet, and no significant variation with  was observed. This study provides an upper limit on the variation in the JES between jets at  ¼ 0 and  ¼ =2 of 0.1% for pT> 45 GeV.

Double differential jet yields, d2Njet=dpTd, were

measured over jj<2:1 for each of the centrality ranges described above and in five pT intervals: 45–60 GeV,


60–80 GeV, 80–110 GeV, 110–160 GeV, and 160–210 GeV. The measurement in each pT range was

performed using events selected by the jet trigger except for the 45–60 GeV pT range, in which minimum-bias

events were used. The  dependence of the jet yields in the 60–80 GeV pTinterval is shown for each centrality

range in Fig.1. A significant variation that is consistent with a cos2  modulation is seen for all centrality intervals.

The measured yields and the resulting vjet2 jmeas values

are distorted by the finite resolutions in2 and the jet pT.

The 2 resolution was evaluated using a subevent tech-nique [17,23] in which2was measured separately in the positive and negative  halves of the FCal yielding values þ

2 and 2, respectively. The width of the þ2  2

distribution was used [23] to estimate a factor, , that was used to correct each measured v2 value for the finite

2 resolution according to

v2 ¼ v2jmeas=: (2)

This factor was evaluated for events containing jets to account for the relevant distribution of events within each centrality interval.

The pT dependence, and possibly also the

depen-dence, of the measured yields are affected by the JER, which arises from both fluctuations in the UE and the

detector response. The MC study shows that for the R ¼ 0:2 jets used in this analysis, the JER-induced migra-tion between jet pT intervals is sufficiently small that a

‘‘bin-by-bin’’ unfolding method, utilizing multiplicative corrections to the jet yields, is appropriate. The bin-by-bin correction factors are defined to be the number of generator-level jets divided by the number of reconstructed jets in each pT, , and centrality interval. The MC studies

show no significant  variation of the JER, JES, and the correction factors, and so these correction factors were taken to be independent. Since the measurements presented here depend only on the ratios of jet yields between different intervals for the same pT range, the correction factors do not affect any of the final results; the potential for a dependence of the correction factors is included in the estimates of the systematic uncertainty.

Systematic uncertainties on the corrected v2values arise

due to uncertainties on the two correction procedures described above. Uncertainties on  were estimated by using the values obtained in previous studies [17]. The uncertainties were found to vary between 1% and 4% from central to peripheral collisions. Potential distortions in the measurement of2due to the production of jets in the FCal pseudorapidity range were studied in the MC sample and found to be negligible for the centrality inter-vals included in this analysis.

Uncertainties on the measurements arising from -dependent systematic uncertainties on the bin-by-bin correction factors were estimated by determining the sen-sitivity of these correction factors to each systematic varia-tion and then parametrizing that sensitivity with acos2  dependence. The sensitivity to the dependence of the spectrum was evaluated by varying the pT spectrum of the

generator-level jets in each  interval within a range consistent with the measured vjet2 values. The JES and JER contributions to the uncertainty were obtained by varying the relationship between generator-level and reconstructed jet pT in the determination of the correction

factors. These procedures utilized the JES constraints obtained from track jets and direct measurements of the UE contribution to the JER [3]. Parametrizations of the measured vcalo2 and the average background ET underlying

a typical jet measured in the data were used to provide the dependence of variations on centrality.

The azimuthal dependence of jet suppression can be characterized by vjet2 , which was obtained by correcting the vjet2 jmeas values using Eq. (2). Figure 2 shows the

resulting vjet2 values as a function of jet pTfor all centrality

intervals. Significant, nonzero values are observed over the range 45 < pT < 160 GeV for all centrality intervals. A direct comparison between the v2 of single high-pT

charged particles and vjet2 is generally not possible; how-ever, the fact that both quantities exhibit only a weak pT

dependence leads to the expectation that they should be of similar magnitude. In the charged-particle measurements, 0.028 0.03 0.032 0.034 5 - 10 % 0.002 ± = 0.016 meas | jet 2 v -1 = 0.14 nb t d L

= 2.76 TeV NN s Pb+Pb 10 - 20 % 0.002 ± = 0.032 meas | jet 2 v ATLAS = 0.2 R t k < 80 GeV T p 60 < ] -1 [GeV meas φ∆ dT p d jet N 2 d jet N 1 0.028 0.03 0.032 0.034 20 - 30 % 0.002 ± = 0.042 meas | jet 2 v 30 - 40 % 0.002 ± = 0.041 meas | jet 2 v φ ∆ 0 0.5 1 1.5 0.028 0.03 0.032 0.034 40 - 50 % 0.003 ± = 0.034 meas | jet 2 v φ ∆ 0 0.5 1 1.5 50 - 60 % 0.004 ± = 0.027 meas | jet 2 v

FIG. 1 (color online).  dependence of measured d2Njet=dpTd in the 60 < pT< 80 GeV interval for six

ranges of collision centrality. The yields are normalized by the total number of jets in the pTinterval. The solid curves indicate

the results of fitting the data to the functional form of Eq. (1), with the resulting v2 values, vjet2 jmeas, listed in each panel. The


the v2values of charged particles with28 < pT < 48 GeV

were found to vary between 0.02 and 0.05 for the 10%–50% centrality range [18], which are generally in agreement with vjet2 values reported here indicating no

obvious inconsistencies between the two results.

The centrality dependence of vjet2 is shown in Fig.3as a function ofhNparti for different ranges in pT. The variation of jet yields with can also be characterized by the ratio of jet yields between the most out-of-plane and most in-plane bins,

Rmax  d2Njet=dpTdjout=d2Njet=dpTdjin: (3)

This quantity is more general than vjet2 as it does not assume

a functional form for the dependence of the jet yields. The nuclear modification factor, RAA, is a measure of the

effect of quenching on hard scattering rates, and Rmax can be interpreted as the ratio of-dependent RAA factors, Rmax ¼ RAAjout=RAAjin[16]. The yields were corrected for

2resolution assuming that the variation is dominated

by thecos2  modulation, d2Ncorrjet dpTd ¼ d2Njetmeas dpTd  1 þ 2vjet 2 cos2 

1 þ 2vjet2 jmeascos2 

 : (4) The results, expressed in terms of the quantity f2 1Rmax, show as much as a 20% variation between

the out-of-plane and in-plane jet yields, but they are reduced slightly from the maximal difference, evaluated

at  ¼ =2 and  ¼ 0, by the finite bin size used in the measurement. That reduction was corrected by assum-ing a 1 þ 2vjet2 cos2  variation of the jet yields within the bins containing  ¼ 0 and =2, and calculating the corresponding yields at those  values. From these yields, fcorr2 was calculated analogously to f2. The

magni-tude of the correction is typically a few percent. The f2corr

values are shown in Fig.3. For a purecos2  modulation of the jet yields, fcorr2 would be given by4vjet2 =ð1 þ 2vjet2 Þ. To test for deviations of the  dependence of the jet yields from a purecos2  variation, 4vjet2 =ð1 þ 2vjet2 Þ was calculated using the measured vjet2 values and is shown for

each pTand centrality interval in Fig.3.

Similar variations of vjet2 , fcorr2 , and 4vjet2 =ð1 þ 2vjet2 Þ with hNparti are seen in the 60–80 GeV range, which has the best statistical precision. A reduction in f2corrand vjet2 in

both the most central and peripheral collisions is not surprising; for very central collisions, the anisotropy of the initial state is small and the possible variation of path lengths in the medium is limited. Although the an-isotropy is greater in peripheral collisions, there is little suppression in the jet yields [3]. Therefore large variations in jet yield as a function of would be unexpected. The fcorr2 and 4vjet2 =ð1 þ 2vjet2 Þ values are generally in agree-ment within uncertainties, indicating an azimuthal

0 0.1 0.2 < 60 GeV T p 45 < < 80 GeV T p 60 < ATLAS = 0.2 R t k anti-〉 part N 〈 0 100 200 300 0 0.1 0.2 < 110 GeV T p 80 < jet 2 v jet 2 v 1+2 jet 2 v 4 corr 2 f 〉 part N 〈 0 100 200 300 < 160 GeV T p 110 < = 2.76 TeV NN s Pb+Pb -1 = 0.14 nb t d L

FIG. 3 (color online). ThehNparti dependence of vjet2 (), fcorr2 (j), and 4vjet2 =ð1 þ 2vjet2 Þ (d). All quantities have statistical and

systematic uncertainties that are indicated by error bars and shaded bands, respectively. The uncertainties for all quantities are strongly correlated. The horizontal positions of the points have been offset slightly for presentation purposes and the width of the error bands indicates the uncertainty onhNparti.

jet 2 v 0 0.02 0.04 0.06 5 - 10 % anti-ktR = 0.2 10 - 20 % ATLAS jet 2 v 0 0.02 0.04 0.06 20 - 30 % = 2.76 TeV NN s Pb+Pb -1 = 0.14 nb t d L

30 - 40 % [GeV] T p 50 100 150 200 jet 2 v 0 0.02 0.04 0.06 40 - 50 % [GeV] T p 50 100 150 200 50 - 60 %

FIG. 2 (color online). vjet2 as a function of jet pT in each

centrality interval. The error bars on the points indicate statistical uncertainties while the shaded boxes represent the systematic uncertainties (see text). The horizontal width of the systematic error band is chosen for presentation purposes only.


dependence of relative suppression when measured with respect to the elliptic event plane that is dominated by second-harmonic modulation.

This Letter has presented results of ATLAS measure-ments of the variation of R ¼ 0:2 anti-kffiffiffiffiffiffiffiffi t jet yields in


p ¼ 2:76 TeV Pb þ Pb collisions as a function of , the relative azimuthal angle of the jet with respect to the elliptic event plane. A significant variation in the jet yield is observed for all centrality intervals and in all pT

ranges except for the 160–210 GeV pT interval where the

statistical uncertainties are large. The observed azimuthal variation of jet yields amounts to a reduction of 10%–20% in the jet yields between in-plane and out-of-plane direc-tions. These results establish a relationship between jet suppression and the initial nuclear geometry that should constrain models of the path-length dependence of the quenching mechanism.

We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC, and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST, and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR, and VSC CR, Czech Republic; DNRF, DNSRC, and Lundbeck Foundation, Denmark; EPLANET, ERC, and NSRF, European Union; IN2P3-CNRS, CEA-DSM/ IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG, and AvH Foundation, Germany; GSRT and NSRF, Greece; ISF, MINERVA, GIF, DIP, and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/ NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF, and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular, from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK), and BNL (USA) and in the Tier-2 facilities worldwide.

[1] ATLAS Collaboration, Phys. Rev. Lett. 105, 252303 (2010).

[2] CMS Collaboration,Phys. Rev. C 84, 024906 (2011). [3] ATLAS Collaboration,Phys. Lett. B 719, 220 (2013). [4] R. Baier, Y. L. Dokshitzer, A. J. Mueller, and D. Schiff,

Phys. Rev. C 58, 1706 (1998).

[5] S. S. Gubser, D. R. Gulotta, S. S. Pufu, and F. D. Rocha,

J. High Energy Phys. 10 (2008) 052.

[6] C. Marquet and T. Renk,Phys. Lett. B 685, 270 (2010). [7] M. Gyulassy, I. Vitev, and X. N. Wang,Phys. Rev. Lett. 86,

2537 (2001).

[8] X. Zhang and J. Liao,Phys. Rev. C 87, 044910 (2013). [9] ATLAS uses a right-handed coordinate system with its

origin at the nominal interaction point (IP) in the center of the detector and the z axis along the beam pipe. The x axis points from the IP to the center of the LHC ring, and the y axis points upward. Cylindrical coordinates (r, ) are used in the transverse plane,  being the azimuthal angle around the beam pipe. The pseudorapidity is defined in terms of the polar angle  as  ¼  ln tanð=2Þ. [10] J.-Y. Ollitrault,Phys. Rev. D 46, 229 (1992).

[11] ALICE Collaboration, Phys. Rev. Lett. 107, 032301 (2011).

[12] ATLAS Collaboration,Phys. Rev. C 86, 014907 (2012). [13] CMS Collaboration,Eur. Phys. J. C 72, 2012 (2012). [14] STAR Collaboration,Phys. Rev. Lett. 93, 252301 (2004). [15] PHENIX Collaboration, Phys. Rev. C 76, 034904


[16] PHENIX Collaboration, Phys. Rev. Lett. 105, 142301 (2010).

[17] ATLAS Collaboration,Phys. Lett. B 707, 330 (2012). [18] CMS Collaboration, Phys. Rev. Lett. 109, 022301


[19] ALICE Collaboration,Phys. Lett. B 719, 18 (2013). [20] M. Cacciari, G. P. Salam, and G. Soyez,J. High Energy

Phys. 04 (2008) 063.

[21] ATLAS Collaboration,JINST 3, S08003 (2008). [22] ATLAS Collaboration,Eur. Phys. J. C 70, 787 (2010). [23] A. M. Poskanzer and S. A. Voloshin, Phys. Rev. C 58,

1671 (1998).

[24] M. L. Miller, K. Reygers, S. J. Sanders, and P. Steinberg,

Annu. Rev. Nucl. Part. Sci. 57, 205 (2007).

[25] B. Alver, M. Baker, C. Loizides, and P. Steinberg,


[26] ATLAS Collaboration,Eur. Phys. J. C 73, 2304 (2013). [27] ATLAS Collaboration,arXiv:0901.0512.

[28] S. Agostinelli et al. (GEANT4),Nucl. Instrum. Methods Phys. Res., Sect. A 506, 250 (2003).

[29] ATLAS Collaboration,Eur. Phys. J. C 70, 823 (2010). [30] T. Sjostrand, S. Mrenna, and P. Skands,J. High Energy

Phys. 05 (2006) 026.

[31] ATLAS Collaboration, Report No. ATL-PHYS-PUB-2011-009, 2011, ATL-PHYS-PUB-2011-009.pdf.

G. Aad,48T. Abajyan,21B. Abbott,112J. Abdallah,12S. Abdel Khalek,116O. Abdinov,11R. Aben,106B. Abi,113 M. Abolins,89O. S. AbouZeid,159H. Abramowicz,154H. Abreu,137Y. Abulaiti,147a,147bB. S. Acharya,165a,165b,b


L. Adamczyk,38aD. L. Adams,25T. N. Addy,56J. Adelman,177S. Adomeit,99T. Adye,130S. Aefsky,23 T. Agatonovic-Jovin,13bJ. A. Aguilar-Saavedra,125b,cM. Agustoni,17S. P. Ahlen,22A. Ahmad,149M. Ahsan,41 G. Aielli,134a,134bT. P. A. A˚ kesson,80G. Akimoto,156A. V. Akimov,95M. A. Alam,76J. Albert,170S. Albrand,55

M. J. Alconada Verzini,70M. Aleksa,30I. N. Aleksandrov,64F. Alessandria,90aC. Alexa,26aG. Alexander,154 G. Alexandre,49T. Alexopoulos,10M. Alhroob,165a,165cM. Aliev,16G. Alimonti,90aL. Alio,84J. Alison,31 B. M. M. Allbrooke,18L. J. Allison,71P. P. Allport,73S. E. Allwood-Spiers,53J. Almond,83A. Aloisio,103a,103b R. Alon,173A. Alonso,36F. Alonso,70A. Altheimer,35B. Alvarez Gonzalez,89M. G. Alviggi,103a,103bK. Amako,65

Y. Amaral Coutinho,24aC. Amelung,23V. V. Ammosov,129,aS. P. Amor Dos Santos,125aA. Amorim,125a,d S. Amoroso,48N. Amram,154C. Anastopoulos,30L. S. Ancu,17N. Andari,30T. Andeen,35C. F. Anders,58b G. Anders,58aK. J. Anderson,31A. Andreazza,90a,90bV. Andrei,58aX. S. Anduaga,70S. Angelidakis,9P. Anger,44

A. Angerami,35F. Anghinolfi,30A. V. Anisenkov,108N. Anjos,125aA. Annovi,47A. Antonaki,9M. Antonelli,47 A. Antonov,97J. Antos,145bF. Anulli,133aM. Aoki,102L. Aperio Bella,18R. Apolle,119,eG. Arabidze,89I. Aracena,144

Y. Arai,65A. T. H. Arce,45S. Arfaoui,149J-F. Arguin,94S. Argyropoulos,42E. Arik,19a,aM. Arik,19a A. J. Armbruster,88O. Arnaez,82V. Arnal,81A. Artamonov,96G. Artoni,133a,133bD. Arutinov,21S. Asai,156

N. Asbah,94S. Ask,28B. A˚ sman,147a,147bL. Asquith,6K. Assamagan,25R. Astalos,145aA. Astbury,170 M. Atkinson,166N. B. Atlay,142B. Auerbach,6E. Auge,116K. Augsten,127M. Aurousseau,146bG. Avolio,30

D. Axen,169G. Azuelos,94,fY. Azuma,156M. A. Baak,30C. Bacci,135a,135bA. M. Bach,15H. Bachacou,137 K. Bachas,155M. Backes,49M. Backhaus,21J. Backus Mayes,144E. Badescu,26aP. Bagiacchi,133a,133b P. Bagnaia,133a,133bY. Bai,33aD. C. Bailey,159T. Bain,35J. T. Baines,130O. K. Baker,177S. Baker,77P. Balek,128

F. Balli,137E. Banas,39Sw. Banerjee,174D. Banfi,30A. Bangert,151V. Bansal,170H. S. Bansil,18L. Barak,173 S. P. Baranov,95T. Barber,48E. L. Barberio,87D. Barberis,50a,50bM. Barbero,84D. Y. Bardin,64T. Barillari,100 M. Barisonzi,176T. Barklow,144N. Barlow,28B. M. Barnett,130R. M. Barnett,15A. Baroncelli,135aG. Barone,49

A. J. Barr,119F. Barreiro,81J. Barreiro Guimara˜es da Costa,57R. Bartoldus,144A. E. Barton,71V. Bartsch,150 A. Basye,166R. L. Bates,53L. Batkova,145aJ. R. Batley,28M. Battistin,30F. Bauer,137H. S. Bawa,144,gS. Beale,99

T. Beau,79P. H. Beauchemin,162R. Beccherle,50aP. Bechtle,21H. P. Beck,17K. Becker,176S. Becker,99 M. Beckingham,139K. H. Becks,176A. J. Beddall,19cA. Beddall,19cS. Bedikian,177V. A. Bednyakov,64C. P. Bee,84 L. J. Beemster,106T. A. Beermann,176M. Begel,25C. Belanger-Champagne,86P. J. Bell,49W. H. Bell,49G. Bella,154

L. Bellagamba,20aA. Bellerive,29M. Bellomo,30A. Belloni,57O. L. Beloborodova,108,hK. Belotskiy,97 O. Beltramello,30O. Benary,154D. Benchekroun,136aK. Bendtz,147a,147bN. Benekos,166Y. Benhammou,154

E. Benhar Noccioli,49J. A. Benitez Garcia,160bD. P. Benjamin,45J. R. Bensinger,23K. Benslama,131 S. Bentvelsen,106D. Berge,30E. Bergeaas Kuutmann,16N. Berger,5F. Berghaus,170E. Berglund,106J. Beringer,15

C. Bernard,22P. Bernat,77R. Bernhard,48C. Bernius,78F. U. Bernlochner,170T. Berry,76C. Bertella,84 F. Bertolucci,123a,123bM. I. Besana,90a,90bG. J. Besjes,105O. Bessidskaia,147a,147bN. Besson,137S. Bethke,100 W. Bhimji,46R. M. Bianchi,124L. Bianchini,23M. Bianco,72a,72bO. Biebel,99S. P. Bieniek,77K. Bierwagen,54 J. Biesiada,15M. Biglietti,135aJ. Bilbao De Mendizabal,49H. Bilokon,47M. Bindi,20a,20bS. Binet,116A. Bingul,19c

C. Bini,133a,133bB. Bittner,100C. W. Black,151J. E. Black,144K. M. Black,22D. Blackburn,139R. E. Blair,6 J.-B. Blanchard,137T. Blazek,145aI. Bloch,42C. Blocker,23J. Blocki,39W. Blum,82,aU. Blumenschein,54 G. J. Bobbink,106V. S. Bobrovnikov,108S. S. Bocchetta,80A. Bocci,45C. R. Boddy,119M. Boehler,48J. Boek,176 T. T. Boek,176N. Boelaert,36J. A. Bogaerts,30A. G. Bogdanchikov,108A. Bogouch,91,aC. Bohm,147aJ. Bohm,126 V. Boisvert,76T. Bold,38aV. Boldea,26aN. M. Bolnet,137M. Bomben,79M. Bona,75M. Boonekamp,137S. Bordoni,79

C. Borer,17A. Borisov,129G. Borissov,71M. Borri,83S. Borroni,42J. Bortfeldt,99V. Bortolotto,135a,135bK. Bos,106 D. Boscherini,20aM. Bosman,12H. Boterenbrood,106J. Bouchami,94J. Boudreau,124E. V. Bouhova-Thacker,71

D. Boumediene,34C. Bourdarios,116N. Bousson,84S. Boutouil,136dA. Boveia,31J. Boyd,30I. R. Boyko,64 I. Bozovic-Jelisavcic,13bJ. Bracinik,18P. Branchini,135aA. Brandt,8G. Brandt,15O. Brandt,54U. Bratzler,157 B. Brau,85J. E. Brau,115H. M. Braun,176,aS. F. Brazzale,165a,165cB. Brelier,159J. Bremer,30K. Brendlinger,121 R. Brenner,167S. Bressler,173T. M. Bristow,46D. Britton,53F. M. Brochu,28I. Brock,21R. Brock,89F. Broggi,90a C. Bromberg,89J. Bronner,100G. Brooijmans,35T. Brooks,76W. K. Brooks,32bE. Brost,115G. Brown,83J. Brown,55

P. A. Bruckman de Renstrom,39D. Bruncko,145bR. Bruneliere,48S. Brunet,60A. Bruni,20aG. Bruni,20a M. Bruschi,20aL. Bryngemark,80T. Buanes,14Q. Buat,55F. Bucci,49J. Buchanan,119P. Buchholz,142 R. M. Buckingham,119A. G. Buckley,46S. I. Buda,26aI. A. Budagov,64B. Budick,109L. Bugge,118O. Bulekov,97 A. C. Bundock,73M. Bunse,43T. Buran,118,aH. Burckhart,30S. Burdin,73T. Burgess,14S. Burke,130E. Busato,34


V. Bu¨scher,82P. Bussey,53C. P. Buszello,167B. Butler,57J. M. Butler,22C. M. Buttar,53J. M. Butterworth,77 W. Buttinger,28M. Byszewski,10S. Cabrera Urba´n,168D. Caforio,20a,20bO. Cakir,4aP. Calafiura,15G. Calderini,79

P. Calfayan,99R. Calkins,107L. P. Caloba,24aR. Caloi,133a,133bD. Calvet,34S. Calvet,34R. Camacho Toro,49 P. Camarri,134a,134bD. Cameron,118L. M. Caminada,15R. Caminal Armadans,12S. Campana,30M. Campanelli,77

V. Canale,103a,103bF. Canelli,31A. Canepa,160aJ. Cantero,81R. Cantrill,76T. Cao,40M. D. M. Capeans Garrido,30 I. Caprini,26aM. Caprini,26aD. Capriotti,100M. Capua,37a,37bR. Caputo,82R. Cardarelli,134aT. Carli,30 G. Carlino,103aL. Carminati,90a,90bS. Caron,105E. Carquin,32bG. D. Carrillo-Montoya,146cA. A. Carter,75

J. R. Carter,28J. Carvalho,125a,iD. Casadei,77M. P. Casado,12M. Cascella,123a,123bC. Caso,50a,50b,a E. Castaneda-Miranda,174A. Castelli,106V. Castillo Gimenez,168N. F. Castro,125aG. Cataldi,72aP. Catastini,57 A. Catinaccio,30J. R. Catmore,30A. Cattai,30G. Cattani,134a,134bS. Caughron,89V. Cavaliere,166D. Cavalli,90a

M. Cavalli-Sforza,12V. Cavasinni,123a,123bF. Ceradini,135a,135bB. Cerio,45A. S. Cerqueira,24bA. Cerri,15 L. Cerrito,75F. Cerutti,15A. Cervelli,17S. A. Cetin,19bA. Chafaq,136aD. Chakraborty,107I. Chalupkova,128K. Chan,3

P. Chang,166B. Chapleau,86J. D. Chapman,28J. W. Chapman,88D. G. Charlton,18V. Chavda,83

C. A. Chavez Barajas,30S. Cheatham,86S. Chekanov,6S. V. Chekulaev,160aG. A. Chelkov,64M. A. Chelstowska,88 C. Chen,63H. Chen,25S. Chen,33cX. Chen,174Y. Chen,35Y. Cheng,31A. Cheplakov,64R. Cherkaoui El Moursli,136e V. Chernyatin,25,aE. Cheu,7L. Chevalier,137V. Chiarella,47G. Chiefari,103a,103bJ. T. Childers,30A. Chilingarov,71 G. Chiodini,72aA. S. Chisholm,18R. T. Chislett,77A. Chitan,26aM. V. Chizhov,64G. Choudalakis,31S. Chouridou,9

B. K. B. Chow,99I. A. Christidi,77A. Christov,48D. Chromek-Burckhart,30M. L. Chu,152J. Chudoba,126 G. Ciapetti,133a,133bA. K. Ciftci,4aR. Ciftci,4aD. Cinca,62V. Cindro,74A. Ciocio,15M. Cirilli,88P. Cirkovic,13b

Z. H. Citron,173M. Citterio,90aM. Ciubancan,26aA. Clark,49P. J. Clark,46R. N. Clarke,15J. C. Clemens,84 B. Clement,55C. Clement,147a,147bY. Coadou,84M. Cobal,165a,165cA. Coccaro,139J. Cochran,63S. Coelli,90a L. Coffey,23J. G. Cogan,144J. Coggeshall,166J. Colas,5B. Cole,35S. Cole,107A. P. Colijn,106C. Collins-Tooth,53

J. Collot,55T. Colombo,120a,120bG. Colon,85G. Compostella,100P. Conde Muin˜o,125aE. Coniavitis,167 M. C. Conidi,12S. M. Consonni,90a,90bV. Consorti,48S. Constantinescu,26aC. Conta,120a,120bG. Conti,57 F. Conventi,103a,jM. Cooke,15B. D. Cooper,77A. M. Cooper-Sarkar,119N. J. Cooper-Smith,76K. Copic,15 T. Cornelissen,176M. Corradi,20aF. Corriveau,86,kA. Corso-Radu,164A. Cortes-Gonzalez,166G. Cortiana,100 G. Costa,90aM. J. Costa,168D. Costanzo,140D. Coˆte´,8G. Cottin,32aL. Courneyea,170G. Cowan,76B. E. Cox,83

K. Cranmer,109S. Cre´pe´-Renaudin,55F. Crescioli,79M. Cristinziani,21G. Crosetti,37a,37bC.-M. Cuciuc,26a C. Cuenca Almenar,177T. Cuhadar Donszelmann,140J. Cummings,177M. Curatolo,47C. Cuthbert,151H. Czirr,142

P. Czodrowski,44Z. Czyczula,177S. D’Auria,53M. D’Onofrio,73A. D’Orazio,133a,133b

M. J. Da Cunha Sargedas De Sousa,125aC. Da Via,83W. Dabrowski,38aA. Dafinca,119T. Dai,88F. Dallaire,94 C. Dallapiccola,85M. Dam,36D. S. Damiani,138A. C. Daniells,18H. O. Danielsson,30V. Dao,105G. Darbo,50a G. L. Darlea,26cS. Darmora,8J. A. Dassoulas,42W. Davey,21C. David,170T. Davidek,128E. Davies,119,eM. Davies,94 O. Davignon,79A. R. Davison,77Y. Davygora,58aE. Dawe,143I. Dawson,140R. K. Daya-Ishmukhametova,23K. De,8

R. de Asmundis,103aS. De Castro,20a,20bS. De Cecco,79J. de Graat,99N. De Groot,105P. de Jong,106 C. De La Taille,116H. De la Torre,81F. De Lorenzi,63L. De Nooij,106D. De Pedis,133aA. De Salvo,133a U. De Sanctis,165a,165cA. De Santo,150J. B. De Vivie De Regie,116G. De Zorzi,133a,133bW. J. Dearnaley,71

R. Debbe,25C. Debenedetti,46B. Dechenaux,55D. V. Dedovich,64J. Degenhardt,121J. Del Peso,81 T. Del Prete,123a,123bT. Delemontex,55M. Deliyergiyev,74A. Dell’Acqua,30L. Dell’Asta,22M. Della Pietra,103a,j D. della Volpe,103a,103bM. Delmastro,5P. A. Delsart,55C. Deluca,106S. Demers,177M. Demichev,64A. Demilly,79

B. Demirkoz,12,lS. P. Denisov,129D. Derendarz,39J. E. Derkaoui,136dF. Derue,79P. Dervan,73K. Desch,21 P. O. Deviveiros,106A. Dewhurst,130B. DeWilde,149S. Dhaliwal,106R. Dhullipudi,78,mA. Di Ciaccio,134a,134b L. Di Ciaccio,5C. Di Donato,103a,103bA. Di Girolamo,30B. Di Girolamo,30S. Di Luise,135a,135bA. Di Mattia,153 B. Di Micco,135a,135bR. Di Nardo,47A. Di Simone,48R. Di Sipio,20a,20bM. A. Diaz,32aE. B. Diehl,88J. Dietrich,42

T. A. Dietzsch,58aS. Diglio,87K. Dindar Yagci,40J. Dingfelder,21F. Dinut,26aC. Dionisi,133a,133bP. Dita,26a S. Dita,26aF. Dittus,30F. Djama,84T. Djobava,51bM. A. B. do Vale,24cA. Do Valle Wemans,125a,nT. K. O. Doan,5

D. Dobos,30E. Dobson,77J. Dodd,35C. Doglioni,49T. Doherty,53T. Dohmae,156Y. Doi,65,aJ. Dolejsi,128 Z. Dolezal,128B. A. Dolgoshein,97,aM. Donadelli,24dJ. Donini,34J. Dopke,30A. Doria,103aA. Dos Anjos,174 A. Dotti,123a,123bM. T. Dova,70A. T. Doyle,53M. Dris,10J. Dubbert,88S. Dube,15E. Dubreuil,34E. Duchovni,173 G. Duckeck,99D. Duda,176A. Dudarev,30F. Dudziak,63L. Duflot,116M-A. Dufour,86L. Duguid,76M. Du¨hrssen,30


N. C. Edwards,53W. Ehrenfeld,21T. Eifert,144G. Eigen,14K. Einsweiler,15E. Eisenhandler,75T. Ekelof,167 M. El Kacimi,136cM. Ellert,167S. Elles,5F. Ellinghaus,82K. Ellis,75N. Ellis,30J. Elmsheuser,99M. Elsing,30

D. Emeliyanov,130Y. Enari,156O. C. Endner,82R. Engelmann,149A. Engl,99J. Erdmann,177A. Ereditato,17 D. Eriksson,147aJ. Ernst,2M. Ernst,25J. Ernwein,137D. Errede,166S. Errede,166E. Ertel,82M. Escalier,116H. Esch,43

C. Escobar,124X. Espinal Curull,12B. Esposito,47F. Etienne,84A. I. Etienvre,137E. Etzion,154D. Evangelakou,54 H. Evans,60L. Fabbri,20a,20bC. Fabre,30G. Facini,30R. M. Fakhrutdinov,129S. Falciano,133aY. Fang,33a M. Fanti,90a,90bA. Farbin,8A. Farilla,135aT. Farooque,159S. Farrell,164S. M. Farrington,171P. Farthouat,30 F. Fassi,168P. Fassnacht,30D. Fassouliotis,9B. Fatholahzadeh,159A. Favareto,90a,90bL. Fayard,116P. Federic,145a

O. L. Fedin,122W. Fedorko,169M. Fehling-Kaschek,48L. Feligioni,84C. Feng,33dE. J. Feng,6H. Feng,88 A. B. Fenyuk,129J. Ferencei,145bW. Fernando,6S. Ferrag,53J. Ferrando,53V. Ferrara,42A. Ferrari,167P. Ferrari,106

R. Ferrari,120aD. E. Ferreira de Lima,53A. Ferrer,168D. Ferrere,49C. Ferretti,88A. Ferretto Parodi,50a,50b M. Fiascaris,31F. Fiedler,82A. Filipcˇicˇ,74M. Filipuzzi,42F. Filthaut,105M. Fincke-Keeler,170K. D. Finelli,45 M. C. N. Fiolhais,125a,iL. Fiorini,168A. Firan,40J. Fischer,176M. J. Fisher,110E. A. Fitzgerald,23M. Flechl,48 I. Fleck,142P. Fleischmann,175S. Fleischmann,176G. T. Fletcher,140G. Fletcher,75T. Flick,176A. Floderus,80 L. R. Flores Castillo,174A. C. Florez Bustos,160bM. J. Flowerdew,100T. Fonseca Martin,17A. Formica,137A. Forti,83

D. Fortin,160aD. Fournier,116H. Fox,71P. Francavilla,12M. Franchini,20a,20bS. Franchino,30D. Francis,30 M. Franklin,57S. Franz,61M. Fraternali,120a,120bS. Fratina,121S. T. French,28C. Friedrich,42F. Friedrich,44

D. Froidevaux,30J. A. Frost,28C. Fukunaga,157E. Fullana Torregrosa,128B. G. Fulsom,144J. Fuster,168 C. Gabaldon,30O. Gabizon,173A. Gabrielli,20a,20bA. Gabrielli,133a,133bS. Gadatsch,106T. Gadfort,25S. Gadomski,49 G. Gagliardi,50a,50bP. Gagnon,60C. Galea,99B. Galhardo,125aE. J. Gallas,119V. Gallo,17B. J. Gallop,130P. Gallus,127 G. Galster,36K. K. Gan,110R. P. Gandrajula,62Y. S. Gao,144,gA. Gaponenko,15F. M. Garay Walls,46F. Garberson,177 C. Garcı´a,168J. E. Garcı´a Navarro,168M. Garcia-Sciveres,15R. W. Gardner,31N. Garelli,144V. Garonne,30C. Gatti,47

G. Gaudio,120aB. Gaur,142L. Gauthier,94P. Gauzzi,133a,133bI. L. Gavrilenko,95C. Gay,169G. Gaycken,21 E. N. Gazis,10P. Ge,33d,oZ. Gecse,169C. N. P. Gee,130D. A. A. Geerts,106Ch. Geich-Gimbel,21

K. Gellerstedt,147a,147bC. Gemme,50aA. Gemmell,53M. H. Genest,55S. Gentile,133a,133bM. George,54S. George,76 D. Gerbaudo,164A. Gershon,154H. Ghazlane,136bN. Ghodbane,34B. Giacobbe,20aS. Giagu,133a,133b V. Giangiobbe,12P. Giannetti,123a,123bF. Gianotti,30B. Gibbard,25S. M. Gibson,76M. Gilchriese,15T. P. S. Gillam,28

D. Gillberg,30A. R. Gillman,130D. M. Gingrich,3,fN. Giokaris,9M. P. Giordani,165cR. Giordano,103a,103b F. M. Giorgi,16P. Giovannini,100P. F. Giraud,137D. Giugni,90aC. Giuliani,48M. Giunta,94B. K. Gjelsten,118 I. Gkialas,155,pL. K. Gladilin,98C. Glasman,81J. Glatzer,21A. Glazov,42G. L. Glonti,64M. Goblirsch-Kolb,100

J. R. Goddard,75J. Godfrey,143J. Godlewski,30M. Goebel,42C. Goeringer,82S. Goldfarb,88T. Golling,177 D. Golubkov,129A. Gomes,125a,dL. S. Gomez Fajardo,42R. Gonc¸alo,76J. Goncalves Pinto Firmino Da Costa,42

L. Gonella,21S. Gonza´lez de la Hoz,168G. Gonzalez Parra,12M. L. Gonzalez Silva,27S. Gonzalez-Sevilla,49 J. J. Goodson,149L. Goossens,30P. A. Gorbounov,96H. A. Gordon,25I. Gorelov,104G. Gorfine,176B. Gorini,30 E. Gorini,72a,72bA. Gorisˇek,74E. Gornicki,39A. T. Goshaw,6C. Go¨ssling,43M. I. Gostkin,64I. Gough Eschrich,164 M. Gouighri,136aD. Goujdami,136cM. P. Goulette,49A. G. Goussiou,139C. Goy,5S. Gozpinar,23H. M. X. Grabas,137

L. Graber,54I. Grabowska-Bold,38aP. Grafstro¨m,20a,20bK-J. Grahn,42E. Gramstad,118F. Grancagnolo,72a S. Grancagnolo,16V. Grassi,149V. Gratchev,122H. M. Gray,30J. A. Gray,149E. Graziani,135aO. G. Grebenyuk,122 T. Greenshaw,73Z. D. Greenwood,78,mK. Gregersen,36I. M. Gregor,42P. Grenier,144J. Griffiths,8N. Grigalashvili,64

A. A. Grillo,138K. Grimm,71S. Grinstein,12,qPh. Gris,34Y. V. Grishkevich,98J.-F. Grivaz,116J. P. Grohs,44 A. Grohsjean,42E. Gross,173J. Grosse-Knetter,54J. Groth-Jensen,173K. Grybel,142F. Guescini,49D. Guest,177 O. Gueta,154C. Guicheney,34E. Guido,50a,50bT. Guillemin,116S. Guindon,2U. Gul,53J. Gunther,127J. Guo,35 S. Gupta,119P. Gutierrez,112N. G. Gutierrez Ortiz,53N. Guttman,154O. Gutzwiller,174C. Guyot,137C. Gwenlan,119 C. B. Gwilliam,73A. Haas,109S. Haas,30C. Haber,15H. K. Hadavand,8P. Haefner,21Z. Hajduk,39H. Hakobyan,178

D. Hall,119G. Halladjian,62K. Hamacher,176P. Hamal,114K. Hamano,87M. Hamer,54A. Hamilton,146a,r S. Hamilton,162L. Han,33bK. Hanagaki,117K. Hanawa,156M. Hance,15C. Handel,82P. Hanke,58aJ. R. Hansen,36

J. B. Hansen,36J. D. Hansen,36P. H. Hansen,36P. Hansson,144K. Hara,161A. S. Hard,174T. Harenberg,176 S. Harkusha,91D. Harper,88R. D. Harrington,46O. M. Harris,139J. Hartert,48F. Hartjes,106A. Harvey,56 S. Hasegawa,102Y. Hasegawa,141S. Hassani,137S. Haug,17M. Hauschild,30R. Hauser,89M. Havranek,21 C. M. Hawkes,18R. J. Hawkings,30A. D. Hawkins,80T. Hayashi,161D. Hayden,89C. P. Hays,119H. S. Hayward,73 S. J. Haywood,130S. J. Head,18T. Heck,82V. Hedberg,80L. Heelan,8S. Heim,121B. Heinemann,15S. Heisterkamp,36


J. Hejbal,126L. Helary,22C. Heller,99M. Heller,30S. Hellman,147a,147bD. Hellmich,21C. Helsens,30J. Henderson,119 R. C. W. Henderson,71A. Henrichs,177A. M. Henriques Correia,30S. Henrot-Versille,116C. Hensel,54

G. H. Herbert,16C. M. Hernandez,8Y. Herna´ndez Jime´nez,168R. Herrberg-Schubert,16G. Herten,48 R. Hertenberger,99L. Hervas,30G. G. Hesketh,77N. P. Hessey,106R. Hickling,75E. Higo´n-Rodriguez,168J. C. Hill,28 K. H. Hiller,42S. Hillert,21S. J. Hillier,18I. Hinchliffe,15E. Hines,121M. Hirose,117D. Hirschbuehl,176J. Hobbs,149 N. Hod,106M. C. Hodgkinson,140P. Hodgson,140A. Hoecker,30M. R. Hoeferkamp,104J. Hoffman,40D. Hoffmann,84 J. I. Hofmann,58aM. Hohlfeld,82S. O. Holmgren,147aJ. L. Holzbauer,89T. M. Hong,121L. Hooft van Huysduynen,109

J-Y. Hostachy,55S. Hou,152A. Hoummada,136aJ. Howard,119J. Howarth,83M. Hrabovsky,114I. Hristova,16 J. Hrivnac,116T. Hryn’ova,5P. J. Hsu,82S.-C. Hsu,139D. Hu,35X. Hu,25Z. Hubacek,30F. Hubaut,84F. Huegging,21

A. Huettmann,42T. B. Huffman,119E. W. Hughes,35G. Hughes,71M. Huhtinen,30T. A. Hu¨lsing,82M. Hurwitz,15 N. Huseynov,64,sJ. Huston,89J. Huth,57G. Iacobucci,49G. Iakovidis,10I. Ibragimov,142L. Iconomidou-Fayard,116

J. Idarraga,116P. Iengo,103aO. Igonkina,106Y. Ikegami,65K. Ikematsu,142M. Ikeno,65D. Iliadis,155N. Ilic,159 T. Ince,100P. Ioannou,9M. Iodice,135aK. Iordanidou,9V. Ippolito,133a,133bA. Irles Quiles,168C. Isaksson,167 M. Ishino,67M. Ishitsuka,158R. Ishmukhametov,110C. Issever,119S. Istin,19aA. V. Ivashin,129W. Iwanski,39 H. Iwasaki,65J. M. Izen,41V. Izzo,103aB. Jackson,121J. N. Jackson,73P. Jackson,1M. R. Jaekel,30V. Jain,2 K. Jakobs,48S. Jakobsen,36T. Jakoubek,126J. Jakubek,127D. O. Jamin,152D. K. Jana,112E. Jansen,77H. Jansen,30 J. Janssen,21M. Janus,171R. C. Jared,174G. Jarlskog,80L. Jeanty,57G.-Y. Jeng,151I. Jen-La Plante,31D. Jennens,87

P. Jenni,30J. Jentzsch,43C. Jeske,171S. Je´ze´quel,5M. K. Jha,20aH. Ji,174W. Ji,82J. Jia,149Y. Jiang,33b M. Jimenez Belenguer,42S. Jin,33aO. Jinnouchi,158M. D. Joergensen,36D. Joffe,40K. E. Johansson,147a P. Johansson,140S. Johnert,42K. A. Johns,7K. Jon-And,147a,147bG. Jones,171R. W. L. Jones,71T. J. Jones,73 P. M. Jorge,125aK. D. Joshi,83J. Jovicevic,148X. Ju,174C. A. Jung,43R. M. Jungst,30P. Jussel,61A. Juste Rozas,12,q M. Kaci,168A. Kaczmarska,39P. Kadlecik,36M. Kado,116H. Kagan,110M. Kagan,57E. Kajomovitz,153S. Kalinin,176 S. Kama,40N. Kanaya,156M. Kaneda,30S. Kaneti,28T. Kanno,158V. A. Kantserov,97J. Kanzaki,65B. Kaplan,109

A. Kapliy,31D. Kar,53K. Karakostas,10N. Karastathis,10M. Karnevskiy,82S. N. Karpov,64V. Kartvelishvili,71 A. N. Karyukhin,129L. Kashif,174G. Kasieczka,58bR. D. Kass,110A. Kastanas,14Y. Kataoka,156A. Katre,49

J. Katzy,42V. Kaushik,7K. Kawagoe,69T. Kawamoto,156G. Kawamura,54S. Kazama,156V. F. Kazanin,108 M. Y. Kazarinov,64R. Keeler,170P. T. Keener,121R. Kehoe,40M. Keil,54J. S. Keller,139H. Keoshkerian,5 O. Kepka,126B. P. Kersˇevan,74S. Kersten,176K. Kessoku,156J. Keung,159F. Khalil-zada,11H. Khandanyan,147a,147b

A. Khanov,113D. Kharchenko,64A. Khodinov,97A. Khomich,58aT. J. Khoo,28G. Khoriauli,21A. Khoroshilov,176 V. Khovanskiy,96E. Khramov,64J. Khubua,51bH. Kim,147a,147bS. H. Kim,161N. Kimura,172O. Kind,16B. T. King,73

M. King,66R. S. B. King,119S. B. King,169J. Kirk,130A. E. Kiryunin,100T. Kishimoto,66D. Kisielewska,38a T. Kitamura,66T. Kittelmann,124K. Kiuchi,161E. Kladiva,145bM. Klein,73U. Klein,73K. Kleinknecht,82

M. Klemetti,86P. Klimek,147a,147bA. Klimentov,25R. Klingenberg,43J. A. Klinger,83E. B. Klinkby,36 T. Klioutchnikova,30P. F. Klok,105E.-E. Kluge,58aP. Kluit,106S. Kluth,100E. Kneringer,61E. B. F. G. Knoops,84

A. Knue,54B. R. Ko,45T. Kobayashi,156M. Kobel,44M. Kocian,144P. Kodys,128S. Koenig,82P. Koevesarki,21 T. Koffas,29E. Koffeman,106L. A. Kogan,119S. Kohlmann,176F. Kohn,54Z. Kohout,127T. Kohriki,65T. Koi,144 H. Kolanoski,16I. Koletsou,90aJ. Koll,89A. A. Komar,95Y. Komori,156T. Kondo,65K. Ko¨neke,48A. C. Ko¨nig,105 T. Kono,42,tA. I. Kononov,48R. Konoplich,109,uN. Konstantinidis,77R. Kopeliansky,153S. Koperny,38aL. Ko¨pke,82

A. K. Kopp,48K. Korcyl,39K. Kordas,155A. Korn,46A. A. Korol,108I. Korolkov,12E. V. Korolkova,140 V. A. Korotkov,129O. Kortner,100S. Kortner,100V. V. Kostyukhin,21S. Kotov,100V. M. Kotov,64A. Kotwal,45 C. Kourkoumelis,9V. Kouskoura,155A. Koutsman,160aR. Kowalewski,170T. Z. Kowalski,38aW. Kozanecki,137

A. S. Kozhin,129V. Kral,127V. A. Kramarenko,98G. Kramberger,74M. W. Krasny,79A. Krasznahorkay,109 J. K. Kraus,21A. Kravchenko,25S. Kreiss,109J. Kretzschmar,73K. Kreutzfeldt,52N. Krieger,54P. Krieger,159 K. Kroeninger,54H. Kroha,100J. Kroll,121J. Kroseberg,21J. Krstic,13aU. Kruchonak,64H. Kru¨ger,21T. Kruker,17 N. Krumnack,63Z. V. Krumshteyn,64A. Kruse,174M. K. Kruse,45M. Kruskal,22T. Kubota,87S. Kuday,4aS. Kuehn,48

A. Kugel,58cT. Kuhl,42V. Kukhtin,64Y. Kulchitsky,91S. Kuleshov,32bM. Kuna,79J. Kunkle,121A. Kupco,126 H. Kurashige,66M. Kurata,161Y. A. Kurochkin,91V. Kus,126E. S. Kuwertz,148M. Kuze,158J. Kvita,143R. Kwee,16

A. La Rosa,49L. La Rotonda,37a,37bL. Labarga,81S. Lablak,136aC. Lacasta,168F. Lacava,133a,133bJ. Lacey,29 H. Lacker,16D. Lacour,79V. R. Lacuesta,168E. Ladygin,64R. Lafaye,5B. Laforge,79T. Lagouri,177S. Lai,48

H. Laier,58aE. Laisne,55L. Lambourne,77C. L. Lampen,7W. Lampl,7E. Lanc¸on,137U. Landgraf,48 M. P. J. Landon,75V. S. Lang,58aC. Lange,42A. J. Lankford,164F. Lanni,25K. Lantzsch,30A. Lanza,120aS. Laplace,79


C. Lapoire,21J. F. Laporte,137T. Lari,90aA. Larner,119M. Lassnig,30P. Laurelli,47V. Lavorini,37a,37bW. Lavrijsen,15 P. Laycock,73B. T. Le,55O. Le Dortz,79E. Le Guirriec,84E. Le Menedeu,12T. LeCompte,6F. Ledroit-Guillon,55

C. A. Lee,152H. Lee,106J. S. H. Lee,117S. C. Lee,152L. Lee,177G. Lefebvre,79M. Lefebvre,170M. Legendre,137 F. Legger,99C. Leggett,15A. Lehan,73M. Lehmacher,21G. Lehmann Miotto,30A. G. Leister,177M. A. L. Leite,24d

R. Leitner,128D. Lellouch,173B. Lemmer,54V. Lendermann,58aK. J. C. Leney,146cT. Lenz,106G. Lenzen,176 B. Lenzi,30R. Leone,7K. Leonhardt,44S. Leontsinis,10C. Leroy,94J-R. Lessard,170C. G. Lester,28C. M. Lester,121

J. Leveˆque,5D. Levin,88L. J. Levinson,173A. Lewis,119G. H. Lewis,109A. M. Leyko,21M. Leyton,16B. Li,33b,v B. Li,84H. Li,149H. L. Li,31S. Li,33b,wX. Li,88Z. Liang,119,xH. Liao,34B. Liberti,134aP. Lichard,30K. Lie,166 J. Liebal,21W. Liebig,14C. Limbach,21A. Limosani,87M. Limper,62S. C. Lin,152,yF. Linde,106B. E. Lindquist,149

J. T. Linnemann,89E. Lipeles,121A. Lipniacka,14M. Lisovyi,42T. M. Liss,166D. Lissauer,25A. Lister,169 A. M. Litke,138B. Liu,152D. Liu,152J. B. Liu,33bK. Liu,33b,zL. Liu,88M Liu,45M. Liu,33bY. Liu,33b M. Livan,120a,120bS. S. A. Livermore,119A. Lleres,55J. Llorente Merino,81S. L. Lloyd,75F. Lo Sterzo,133a,133b E. Lobodzinska,42P. Loch,7W. S. Lockman,138T. Loddenkoetter,21F. K. Loebinger,83A. E. Loevschall-Jensen,36

A. Loginov,177C. W. Loh,169T. Lohse,16K. Lohwasser,48M. Lokajicek,126V. P. Lombardo,5R. E. Long,71 L. Lopes,125aD. Lopez Mateos,57B. Lopez Paredes,140J. Lorenz,99N. Lorenzo Martinez,116M. Losada,163 P. Loscutoff,15M. J. Losty,160a,aX. Lou,41A. Lounis,116K. F. Loureiro,163J. Love,6P. A. Love,71A. J. Lowe,144,g

F. Lu,33aH. J. Lubatti,139C. Luci,133a,133bA. Lucotte,55D. Ludwig,42I. Ludwig,48J. Ludwig,48F. Luehring,60 W. Lukas,61L. Luminari,133aE. Lund,118J. Lundberg,147a,147bO. Lundberg,147a,147bB. Lund-Jensen,148 M. Lungwitz,82D. Lynn,25R. Lysak,126E. Lytken,80H. Ma,25L. L. Ma,33dG. Maccarrone,47A. Macchiolo,100

B. Macˇek,74J. Machado Miguens,125aD. Macina,30R. Mackeprang,36R. Madar,48R. J. Madaras,15 H. J. Maddocks,71W. F. Mader,44A. Madsen,167M. Maeno,5T. Maeno,25L. Magnoni,164E. Magradze,54 K. Mahboubi,48J. Mahlstedt,106S. Mahmoud,73G. Mahout,18C. Maiani,137C. Maidantchik,24aA. Maio,125a,d

S. Majewski,115Y. Makida,65N. Makovec,116P. Mal,137,aaB. Malaescu,79Pa. Malecki,39P. Malecki,39 V. P. Maleev,122F. Malek,55U. Mallik,62D. Malon,6C. Malone,144S. Maltezos,10V. M. Malyshev,108S. Malyukov,30

J. Mamuzic,13bL. Mandelli,90aI. Mandic´,74R. Mandrysch,62J. Maneira,125aA. Manfredini,100 L. Manhaes de Andrade Filho,24bJ. A. Manjarres Ramos,137A. Mann,99P. M. Manning,138 A. Manousakis-Katsikakis,9B. Mansoulie,137R. Mantifel,86L. Mapelli,30L. March,168J. F. Marchand,29 F. Marchese,134a,134bG. Marchiori,79M. Marcisovsky,126C. P. Marino,170C. N. Marques,125aF. Marroquim,24a

Z. Marshall,121L. F. Marti,17S. Marti-Garcia,168B. Martin,30B. Martin,89J. P. Martin,94T. A. Martin,171 V. J. Martin,46B. Martin dit Latour,49H. Martinez,137M. Martinez,12,qS. Martin-Haugh,150A. C. Martyniuk,170

M. Marx,83F. Marzano,133aA. Marzin,112L. Masetti,82T. Mashimo,156R. Mashinistov,95J. Masik,83 A. L. Maslennikov,108I. Massa,20a,20bN. Massol,5P. Mastrandrea,149A. Mastroberardino,37a,37bT. Masubuchi,156

H. Matsunaga,156T. Matsushita,66P. Ma¨ttig,176S. Ma¨ttig,42J. Mattmann,82C. Mattravers,119,eJ. Maurer,84 S. J. Maxfield,73D. A. Maximov,108,hR. Mazini,152L. Mazzaferro,134a,134bM. Mazzanti,90aS. P. Mc Kee,88 A. McCarn,166R. L. McCarthy,149T. G. McCarthy,29N. A. McCubbin,130K. W. McFarlane,56,aJ. A. Mcfayden,140

G. Mchedlidze,51bT. Mclaughlan,18S. J. McMahon,130R. A. McPherson,170,kA. Meade,85J. Mechnich,106 M. Mechtel,176M. Medinnis,42S. Meehan,31R. Meera-Lebbai,112S. Mehlhase,36A. Mehta,73K. Meier,58a C. Meineck,99B. Meirose,80C. Melachrinos,31B. R. Mellado Garcia,146cF. Meloni,90a,90bL. Mendoza Navas,163 A. Mengarelli,20a,20bS. Menke,100E. Meoni,162K. M. Mercurio,57N. Meric,137P. Mermod,49L. Merola,103a,103b C. Meroni,90aF. S. Merritt,31H. Merritt,110A. Messina,30,bbJ. Metcalfe,25A. S. Mete,164C. Meyer,82C. Meyer,31 J-P. Meyer,137J. Meyer,30J. Meyer,54S. Michal,30R. P. Middleton,130S. Migas,73L. Mijovic´,137G. Mikenberg,173 M. Mikestikova,126M. Mikuzˇ,74D. W. Miller,31W. J. Mills,169C. Mills,57A. Milov,173D. A. Milstead,147a,147b

D. Milstein,173A. A. Minaenko,129M. Min˜ano Moya,168I. A. Minashvili,64A. I. Mincer,109B. Mindur,38a M. Mineev,64Y. Ming,174L. M. Mir,12G. Mirabelli,133aT. Mitani,172J. Mitrevski,138V. A. Mitsou,168S. Mitsui,65 P. S. Miyagawa,140J. U. Mjo¨rnmark,80T. Moa,147a,147bV. Moeller,28S. Mohapatra,149W. Mohr,48R. Moles-Valls,168

A. Molfetas,30K. Mo¨nig,42C. Monini,55J. Monk,36E. Monnier,84J. Montejo Berlingen,12F. Monticelli,70 S. Monzani,20a,20bR. W. Moore,3C. Mora Herrera,49A. Moraes,53N. Morange,62J. Morel,54D. Moreno,82 M. Moreno Lla´cer,168P. Morettini,50aM. Morgenstern,44M. Morii,57S. Moritz,82A. K. Morley,148G. Mornacchi,30

J. D. Morris,75L. Morvaj,102H. G. Moser,100M. Mosidze,51bJ. Moss,110R. Mount,144E. Mountricha,10,cc S. V. Mouraviev,95,aE. J. W. Moyse,85R. D. Mudd,18F. Mueller,58aJ. Mueller,124K. Mueller,21T. Mueller,28


E. Musto,153A. G. Myagkov,129,ddM. Myska,126O. Nackenhorst,54J. Nadal,12K. Nagai,161R. Nagai,158Y. Nagai,84 K. Nagano,65A. Nagarkar,110Y. Nagasaka,59M. Nagel,100A. M. Nairz,30Y. Nakahama,30K. Nakamura,65 T. Nakamura,156I. Nakano,111H. Namasivayam,41G. Nanava,21A. Napier,162R. Narayan,58bM. Nash,77,e T. Nattermann,21T. Naumann,42G. Navarro,163H. A. Neal,88P. Yu. Nechaeva,95T. J. Neep,83A. Negri,120a,120b

G. Negri,30M. Negrini,20aS. Nektarijevic,49A. Nelson,164T. K. Nelson,144S. Nemecek,126P. Nemethy,109 A. A. Nepomuceno,24aM. Nessi,30,eeM. S. Neubauer,166M. Neumann,176A. Neusiedl,82R. M. Neves,109 P. Nevski,25F. M. Newcomer,121P. R. Newman,18D. H. Nguyen,6V. Nguyen Thi Hong,137R. B. Nickerson,119

R. Nicolaidou,137B. Nicquevert,30J. Nielsen,138N. Nikiforou,35A. Nikiforov,16V. Nikolaenko,129,dd I. Nikolic-Audit,79K. Nikolics,49K. Nikolopoulos,18P. Nilsson,8Y. Ninomiya,156A. Nisati,133aR. Nisius,100

T. Nobe,158L. Nodulman,6M. Nomachi,117I. Nomidis,155S. Norberg,112M. Nordberg,30J. Novakova,128 M. Nozaki,65L. Nozka,114K. Ntekas,10A.-E. Nuncio-Quiroz,21G. Nunes Hanninger,87T. Nunnemann,99E. Nurse,77

B. J. O’Brien,46F. O’grady,7D. C. O’Neil,143V. O’Shea,53L. B. Oakes,99F. G. Oakham,29,fH. Oberlack,100 J. Ocariz,79A. Ochi,66M. I. Ochoa,77S. Oda,69S. Odaka,65J. Odier,84H. Ogren,60A. Oh,83S. H. Oh,45C. C. Ohm,30

T. Ohshima,102W. Okamura,117H. Okawa,25Y. Okumura,31T. Okuyama,156A. Olariu,26aA. G. Olchevski,64 S. A. Olivares Pino,46M. Oliveira,125a,iD. Oliveira Damazio,25E. Oliver Garcia,168D. Olivito,121A. Olszewski,39 J. Olszowska,39A. Onofre,125a,ffP. U. E. Onyisi,31,ggC. J. Oram,160aM. J. Oreglia,31Y. Oren,154D. Orestano,135a,135b

N. Orlando,72a,72bC. Oropeza Barrera,53R. S. Orr,159B. Osculati,50a,50bR. Ospanov,121G. Otero y Garzon,27 H. Otono,69J. P. Ottersbach,106M. Ouchrif,136dE. A. Ouellette,170F. Ould-Saada,118A. Ouraou,137 K. P. Oussoren,106Q. Ouyang,33aA. Ovcharova,15M. Owen,83S. Owen,140V. E. Ozcan,19aN. Ozturk,8K. Pachal,119

A. Pacheco Pages,12C. Padilla Aranda,12S. Pagan Griso,15E. Paganis,140C. Pahl,100F. Paige,25P. Pais,85 K. Pajchel,118G. Palacino,160bC. P. Paleari,7S. Palestini,30D. Pallin,34A. Palma,125aJ. D. Palmer,18Y. B. Pan,174

E. Panagiotopoulou,10J. G. Panduro Vazquez,76P. Pani,106N. Panikashvili,88S. Panitkin,25D. Pantea,26a A. Papadelis,147aTh. D. Papadopoulou,10K. Papageorgiou,155,pA. Paramonov,6D. Paredes Hernandez,34 M. A. Parker,28F. Parodi,50a,50bJ. A. Parsons,35U. Parzefall,48S. Pashapour,54E. Pasqualucci,133aS. Passaggio,50a

A. Passeri,135aF. Pastore,135a,135b,aFr. Pastore,76G. Pa´sztor,49,hhS. Pataraia,176N. D. Patel,151J. R. Pater,83 S. Patricelli,103a,103bT. Pauly,30J. Pearce,170M. Pedersen,118S. Pedraza Lopez,168M. I. Pedraza Morales,174 S. V. Peleganchuk,108D. Pelikan,167H. Peng,33bB. Penning,31A. Penson,35J. Penwell,60D. V. Perepelitsa,35 T. Perez Cavalcanti,42E. Perez Codina,160aM. T. Pe´rez Garcı´a-Estan˜,168V. Perez Reale,35L. Perini,90a,90b H. Pernegger,30R. Perrino,72aV. D. Peshekhonov,64K. Peters,30R. F. Y. Peters,54,iiB. A. Petersen,30J. Petersen,30

T. C. Petersen,36E. Petit,5A. Petridis,147a,147bC. Petridou,155E. Petrolo,133aF. Petrucci,135a,135bM. Petteni,143 R. Pezoa,32bA. Phan,87P. W. Phillips,130G. Piacquadio,144E. Pianori,171A. Picazio,49E. Piccaro,75 M. Piccinini,20a,20bS. M. Piec,42R. Piegaia,27D. T. Pignotti,110J. E. Pilcher,31A. D. Pilkington,77J. Pina,125a,d

M. Pinamonti,165a,165c,jjA. Pinder,119J. L. Pinfold,3A. Pingel,36B. Pinto,125aC. Pizio,90a,90bM.-A. Pleier,25 V. Pleskot,128E. Plotnikova,64P. Plucinski,147a,147bS. Poddar,58aF. Podlyski,34R. Poettgen,82L. Poggioli,116

D. Pohl,21M. Pohl,49G. Polesello,120aA. Policicchio,37a,37bR. Polifka,159A. Polini,20aC. S. Pollard,45 V. Polychronakos,25D. Pomeroy,23K. Pomme`s,30L. Pontecorvo,133aB. G. Pope,89G. A. Popeneciu,26b D. S. Popovic,13aA. Poppleton,30X. Portell Bueso,12G. E. Pospelov,100S. Pospisil,127I. N. Potrap,64C. J. Potter,150 C. T. Potter,115G. Poulard,30J. Poveda,60V. Pozdnyakov,64R. Prabhu,77P. Pralavorio,84A. Pranko,15S. Prasad,30

R. Pravahan,25S. Prell,63D. Price,60J. Price,73L. E. Price,6D. Prieur,124M. Primavera,72aM. Proissl,46 K. Prokofiev,109F. Prokoshin,32bE. Protopapadaki,137S. Protopopescu,25J. Proudfoot,6X. Prudent,44 M. Przybycien,38aH. Przysiezniak,5S. Psoroulas,21E. Ptacek,115E. Pueschel,85D. Puldon,149M. Purohit,25,kk P. Puzo,116Y. Pylypchenko,62J. Qian,88A. Quadt,54D. R. Quarrie,15W. B. Quayle,146cD. Quilty,53M. Raas,105

V. Radeka,25V. Radescu,42P. Radloff,115F. Ragusa,90a,90bG. Rahal,179S. Rajagopalan,25M. Rammensee,48 M. Rammes,142A. S. Randle-Conde,40C. Rangel-Smith,79K. Rao,164F. Rauscher,99T. C. Rave,48T. Ravenscroft,53 M. Raymond,30A. L. Read,118D. M. Rebuzzi,120a,120bA. Redelbach,175G. Redlinger,25R. Reece,121K. Reeves,41

A. Reinsch,115I. Reisinger,43M. Relich,164C. Rembser,30Z. L. Ren,152A. Renaud,116M. Rescigno,133a S. Resconi,90aB. Resende,137P. Reznicek,99R. Rezvani,94R. Richter,100E. Richter-Was,38bM. Ridel,79P. Rieck,16

M. Rijssenbeek,149A. Rimoldi,120a,120bL. Rinaldi,20aR. R. Rios,40E. Ritsch,61I. Riu,12G. Rivoltella,90a,90b F. Rizatdinova,113E. Rizvi,75S. H. Robertson,86,kA. Robichaud-Veronneau,119D. Robinson,28J. E. M. Robinson,83

A. Robson,53J. G. Rocha de Lima,107C. Roda,123a,123bD. Roda Dos Santos,30A. Roe,54S. Roe,30O. Røhne,118 S. Rolli,162A. Romaniouk,97M. Romano,20a,20bG. Romeo,27E. Romero Adam,168N. Rompotis,139L. Roos,79


E. Ros,168S. Rosati,133aK. Rosbach,49A. Rose,150M. Rose,76P. L. Rosendahl,14O. Rosenthal,142V. Rossetti,12 E. Rossi,133a,133bL. P. Rossi,50aM. Rotaru,26aI. Roth,173J. Rothberg,139D. Rousseau,116C. R. Royon,137 A. Rozanov,84Y. Rozen,153X. Ruan,146cF. Rubbo,12I. Rubinskiy,42N. Ruckstuhl,106V. I. Rud,98C. Rudolph,44 M. S. Rudolph,159F. Ru¨hr,7A. Ruiz-Martinez,63L. Rumyantsev,64Z. Rurikova,48N. A. Rusakovich,64A. Ruschke,99

J. P. Rutherfoord,7N. Ruthmann,48P. Ruzicka,126Y. F. Ryabov,122M. Rybar,128G. Rybkin,116N. C. Ryder,119 A. F. Saavedra,151A. Saddique,3I. Sadeh,154H. F-W. Sadrozinski,138R. Sadykov,64F. Safai Tehrani,133a H. Sakamoto,156G. Salamanna,75A. Salamon,134aM. Saleem,112D. Salek,30D. Salihagic,100A. Salnikov,144

J. Salt,168B. M. Salvachua Ferrando,6D. Salvatore,37a,37bF. Salvatore,150A. Salvucci,105A. Salzburger,30 D. Sampsonidis,155A. Sanchez,103a,103bJ. Sa´nchez,168V. Sanchez Martinez,168H. Sandaker,14H. G. Sander,82 M. P. Sanders,99M. Sandhoff,176T. Sandoval,28C. Sandoval,163R. Sandstroem,100D. P. C. Sankey,130A. Sansoni,47 C. Santoni,34R. Santonico,134a,134bH. Santos,125aI. Santoyo Castillo,150K. Sapp,124J. G. Saraiva,125aT. Sarangi,174 E. Sarkisyan-Grinbaum,8B. Sarrazin,21F. Sarri,123a,123bG. Sartisohn,176O. Sasaki,65Y. Sasaki,156N. Sasao,67

I. Satsounkevitch,91G. Sauvage,5,aE. Sauvan,5J. B. Sauvan,116P. Savard,159,fV. Savinov,124D. O. Savu,30 C. Sawyer,119L. Sawyer,78,mD. H. Saxon,53J. Saxon,121C. Sbarra,20aA. Sbrizzi,3D. A. Scannicchio,164 M. Scarcella,151J. Schaarschmidt,116P. Schacht,100D. Schaefer,121A. Schaelicke,46S. Schaepe,21S. Schaetzel,58b U. Scha¨fer,82A. C. Schaffer,116D. Schaile,99R. D. Schamberger,149V. Scharf,58aV. A. Schegelsky,122D. Scheirich,88 M. Schernau,164M. I. Scherzer,35C. Schiavi,50a,50bJ. Schieck,99C. Schillo,48M. Schioppa,37a,37bS. Schlenker,30

E. Schmidt,48K. Schmieden,21C. Schmitt,82C. Schmitt,99S. Schmitt,58bB. Schneider,17Y. J. Schnellbach,73 U. Schnoor,44L. Schoeffel,137A. Schoening,58bA. L. S. Schorlemmer,54M. Schott,82D. Schouten,160a J. Schovancova,126M. Schram,86C. Schroeder,82N. Schroer,58cM. J. Schultens,21H.-C. Schultz-Coulon,58a

H. Schulz,16M. Schumacher,48B. A. Schumm,138Ph. Schune,137A. Schwartzman,144Ph. Schwegler,100 Ph. Schwemling,137R. Schwienhorst,89J. Schwindling,137T. Schwindt,21M. Schwoerer,5F. G. Sciacca,17 E. Scifo,116G. Sciolla,23W. G. Scott,130F. Scutti,21J. Searcy,88G. Sedov,42E. Sedykh,122S. C. Seidel,104 A. Seiden,138F. Seifert,44J. M. Seixas,24aG. Sekhniaidze,103aS. J. Sekula,40K. E. Selbach,46D. M. Seliverstov,122 G. Sellers,73M. Seman,145bN. Semprini-Cesari,20a,20bC. Serfon,30L. Serin,116L. Serkin,54T. Serre,84R. Seuster,160a H. Severini,112A. Sfyrla,30E. Shabalina,54M. Shamim,115L. Y. Shan,33aJ. T. Shank,22Q. T. Shao,87M. Shapiro,15

P. B. Shatalov,96K. Shaw,165a,165cP. Sherwood,77S. Shimizu,66M. Shimojima,101T. Shin,56M. Shiyakova,64 A. Shmeleva,95M. J. Shochet,31D. Short,119S. Shrestha,63E. Shulga,97M. A. Shupe,7S. Shushkevich,42P. Sicho,126

A. Sidoti,133aF. Siegert,48Dj. Sijacki,13aO. Silbert,173J. Silva,125aY. Silver,154D. Silverstein,144 S. B. Silverstein,147aV. Simak,127O. Simard,5Lj. Simic,13aS. Simion,116E. Simioni,82B. Simmons,77 R. Simoniello,90a,90bM. Simonyan,36P. Sinervo,159N. B. Sinev,115V. Sipica,142G. Siragusa,175A. Sircar,78 A. N. Sisakyan,64,aS. Yu. Sivoklokov,98J. Sjo¨lin,147a,147bT. B. Sjursen,14L. A. Skinnari,15H. P. Skottowe,57 K. Yu. Skovpen,108P. Skubic,112M. Slater,18T. Slavicek,127K. Sliwa,162V. Smakhtin,173B. H. Smart,46 L. Smestad,118S. Yu. Smirnov,97Y. Smirnov,97L. N. Smirnova,98,llO. Smirnova,80K. M. Smith,53M. Smizanska,71

K. Smolek,127A. A. Snesarev,95G. Snidero,75J. Snow,112S. Snyder,25R. Sobie,170,kJ. Sodomka,127A. Soffer,154 D. A. Soh,152,xC. A. Solans,30M. Solar,127J. Solc,127E. Yu. Soldatov,97U. Soldevila,168

E. Solfaroli Camillocci,133a,133bA. A. Solodkov,129O. V. Solovyanov,129V. Solovyev,122N. Soni,1A. Sood,15 V. Sopko,127B. Sopko,127M. Sosebee,8R. Soualah,165a,165cP. Soueid,94A. M. Soukharev,108D. South,42 S. Spagnolo,72a,72bF. Spano`,76W. R. Spearman,57R. Spighi,20aG. Spigo,30R. Spiwoks,30M. Spousta,128,mm

T. Spreitzer,159B. Spurlock,8R. D. St. Denis,53J. Stahlman,121R. Stamen,58aE. Stanecka,39R. W. Stanek,6 C. Stanescu,135aM. Stanescu-Bellu,42M. M. Stanitzki,42S. Stapnes,118E. A. Starchenko,129J. Stark,55P. Staroba,126 P. Starovoitov,42R. Staszewski,39A. Staude,99P. Stavina,145a,aG. Steele,53P. Steinbach,44P. Steinberg,25I. Stekl,127

B. Stelzer,143H. J. Stelzer,89O. Stelzer-Chilton,160aH. Stenzel,52S. Stern,100G. A. Stewart,30J. A. Stillings,21 M. C. Stockton,86M. Stoebe,86K. Stoerig,48G. Stoicea,26aS. Stonjek,100A. R. Stradling,8A. Straessner,44 J. Strandberg,148S. Strandberg,147a,147bA. Strandlie,118M. Strang,110E. Strauss,144M. Strauss,112P. Strizenec,145b

R. Stro¨hmer,175D. M. Strom,115J. A. Strong,76,aR. Stroynowski,40B. Stugu,14I. Stumer,25,aJ. Stupak,149 P. Sturm,176N. A. Styles,42D. Su,144HS. Subramania,3R. Subramaniam,78A. Succurro,12Y. Sugaya,117C. Suhr,107 M. Suk,127V. V. Sulin,95S. Sultansoy,4cT. Sumida,67X. Sun,55J. E. Sundermann,48K. Suruliz,140G. Susinno,37a,37b M. R. Sutton,150Y. Suzuki,65M. Svatos,126S. Swedish,169M. Swiatlowski,144I. Sykora,145aT. Sykora,128D. Ta,106

K. Tackmann,42A. Taffard,164R. Tafirout,160aN. Taiblum,154Y. Takahashi,102H. Takai,25R. Takashima,68 H. Takeda,66T. Takeshita,141Y. Takubo,65M. Talby,84A. A. Talyshev,108,hJ. Y. C. Tam,175M. C. Tamsett,78,nn


K. G. Tan,87J. Tanaka,156R. Tanaka,116S. Tanaka,132S. Tanaka,65A. J. Tanasijczuk,143K. Tani,66N. Tannoury,84 S. Tapprogge,82S. Tarem,153F. Tarrade,29G. F. Tartarelli,90aP. Tas,128M. Tasevsky,126T. Tashiro,67E. Tassi,37a,37b A. Tavares Delgado,125aY. Tayalati,136dC. Taylor,77F. E. Taylor,93G. N. Taylor,87W. Taylor,160bM. Teinturier,116

F. A. Teischinger,30M. Teixeira Dias Castanheira,75P. Teixeira-Dias,76K. K. Temming,48H. Ten Kate,30 P. K. Teng,152S. Terada,65K. Terashi,156J. Terron,81M. Testa,47R. J. Teuscher,159,kJ. Therhaag,21 T. Theveneaux-Pelzer,34S. Thoma,48J. P. Thomas,18E. N. Thompson,35P. D. Thompson,18P. D. Thompson,159

A. S. Thompson,53L. A. Thomsen,36E. Thomson,121M. Thomson,28W. M. Thong,87R. P. Thun,88,aF. Tian,35 M. J. Tibbetts,15T. Tic,126V. O. Tikhomirov,95Yu. A. Tikhonov,108,hS. Timoshenko,97E. Tiouchichine,84

P. Tipton,177S. Tisserant,84T. Todorov,5S. Todorova-Nova,128B. Toggerson,164J. Tojo,69S. Toka´r,145a K. Tokushuku,65K. Tollefson,89L. Tomlinson,83M. Tomoto,102L. Tompkins,31K. Toms,104A. Tonoyan,14

C. Topfel,17N. D. Topilin,64E. Torrence,115H. Torres,79E. Torro´ Pastor,168J. Toth,84,hhF. Touchard,84 D. R. Tovey,140H. L. Tran,116T. Trefzger,175L. Tremblet,30A. Tricoli,30I. M. Trigger,160aS. Trincaz-Duvoid,79

M. F. Tripiana,70N. Triplett,25W. Trischuk,159B. Trocme´,55C. Troncon,90aM. Trottier-McDonald,143 M. Trovatelli,135a,135bP. True,89M. Trzebinski,39A. Trzupek,39C. Tsarouchas,30J. C-L. Tseng,119M. Tsiakiris,106

P. V. Tsiareshka,91D. Tsionou,137G. Tsipolitis,10S. Tsiskaridze,12V. Tsiskaridze,48E. G. Tskhadadze,51a I. I. Tsukerman,96V. Tsulaia,15J.-W. Tsung,21S. Tsuno,65D. Tsybychev,149A. Tua,140A. Tudorache,26a V. Tudorache,26aJ. M. Tuggle,31A. N. Tuna,121M. Turala,39S. Turchikhin,98,llD. Turecek,127I. Turk Cakir,4d R. Turra,90a,90bP. M. Tuts,35A. Tykhonov,74M. Tylmad,147a,147bM. Tyndel,130K. Uchida,21I. Ueda,156R. Ueno,29 M. Ughetto,84M. Ugland,14M. Uhlenbrock,21F. Ukegawa,161G. Unal,30A. Undrus,25G. Unel,164F. C. Ungaro,48

Y. Unno,65D. Urbaniec,35P. Urquijo,21G. Usai,8A. Usanova,61L. Vacavant,84V. Vacek,127B. Vachon,86 S. Vahsen,15N. Valencic,106S. Valentinetti,20a,20bA. Valero,168L. Valery,34S. Valkar,128E. Valladolid Gallego,168 S. Vallecorsa,153J. A. Valls Ferrer,168R. Van Berg,121P. C. Van Der Deijl,106R. van der Geer,106H. van der Graaf,106 R. Van Der Leeuw,106D. van der Ster,30N. van Eldik,30P. van Gemmeren,6J. Van Nieuwkoop,143I. van Vulpen,106 M. Vanadia,100W. Vandelli,30A. Vaniachine,6P. Vankov,42F. Vannucci,79R. Vari,133aE. W. Varnes,7T. Varol,85 D. Varouchas,15A. Vartapetian,8K. E. Varvell,151V. I. Vassilakopoulos,56F. Vazeille,34T. Vazquez Schroeder,54

J. Veatch,7F. Veloso,125aS. Veneziano,133aA. Ventura,72a,72bD. Ventura,85M. Venturi,48N. Venturi,159 V. Vercesi,120aM. Verducci,139W. Verkerke,106J. C. Vermeulen,106A. Vest,44M. C. Vetterli,143,fI. Vichou,166

T. Vickey,146c,ooO. E. Vickey Boeriu,146cG. H. A. Viehhauser,119S. Viel,169R. Vigne,30M. Villa,20a,20b M. Villaplana Perez,168E. Vilucchi,47M. G. Vincter,29V. B. Vinogradov,64J. Virzi,15O. Vitells,173M. Viti,42 I. Vivarelli,48F. Vives Vaque,3S. Vlachos,10D. Vladoiu,99M. Vlasak,127A. Vogel,21P. Vokac,127G. Volpi,47 M. Volpi,87G. Volpini,90aH. von der Schmitt,100H. von Radziewski,48E. von Toerne,21V. Vorobel,128M. Vos,168 R. Voss,30J. H. Vossebeld,73N. Vranjes,137M. Vranjes Milosavljevic,106V. Vrba,126M. Vreeswijk,106T. Vu Anh,48

R. Vuillermet,30I. Vukotic,31Z. Vykydal,127W. Wagner,176P. Wagner,21S. Wahrmund,44J. Wakabayashi,102 S. Walch,88J. Walder,71R. Walker,99W. Walkowiak,142R. Wall,177P. Waller,73B. Walsh,177C. Wang,45H. Wang,174 H. Wang,40J. Wang,152J. Wang,33aK. Wang,86R. Wang,104S. M. Wang,152T. Wang,21X. Wang,177A. Warburton,86 C. P. Ward,28D. R. Wardrope,77M. Warsinsky,48A. Washbrook,46C. Wasicki,42I. Watanabe,66P. M. Watkins,18

A. T. Watson,18I. J. Watson,151M. F. Watson,18G. Watts,139S. Watts,83A. T. Waugh,151B. M. Waugh,77 M. S. Weber,17J. S. Webster,31A. R. Weidberg,119P. Weigell,100J. Weingarten,54C. Weiser,48H. Weits,106 P. S. Wells,30T. Wenaus,25D. Wendland,16Z. Weng,152,xT. Wengler,30S. Wenig,30N. Wermes,21M. Werner,48

P. Werner,30M. Werth,164M. Wessels,58aJ. Wetter,162K. Whalen,29A. White,8M. J. White,87R. White,32b S. White,123a,123bD. Whiteson,164D. Whittington,60D. Wicke,176F. J. Wickens,130W. Wiedenmann,174 M. Wielers,80,eP. Wienemann,21C. Wiglesworth,36L. A. M. Wiik-Fuchs,21P. A. Wijeratne,77A. Wildauer,100 M. A. Wildt,42,tI. Wilhelm,128H. G. Wilkens,30J. Z. Will,99E. Williams,35H. H. Williams,121S. Williams,28 W. Willis,35,aS. Willocq,85J. A. Wilson,18A. Wilson,88I. Wingerter-Seez,5S. Winkelmann,48F. Winklmeier,30

M. Wittgen,144T. Wittig,43J. Wittkowski,99S. J. Wollstadt,82M. W. Wolter,39H. Wolters,125a,iW. C. Wong,41 G. Wooden,88B. K. Wosiek,39J. Wotschack,30M. J. Woudstra,83K. W. Wozniak,39K. Wraight,53M. Wright,53 B. Wrona,73S. L. Wu,174X. Wu,49Y. Wu,88E. Wulf,35B. M. Wynne,46S. Xella,36M. Xiao,137C. Xu,33b,ccD. Xu,33a

L. Xu,33b,ppB. Yabsley,151S. Yacoob,146b,qqM. Yamada,65H. Yamaguchi,156Y. Yamaguchi,156A. Yamamoto,65 K. Yamamoto,63S. Yamamoto,156T. Yamamura,156T. Yamanaka,156K. Yamauchi,102Y. Yamazaki,66Z. Yan,22 H. Yang,33eH. Yang,174U. K. Yang,83Y. Yang,110Z. Yang,147a,147bS. Yanush,92L. Yao,33aY. Yasu,65E. Yatsenko,42


R. Yoshida,6K. Yoshihara,156C. Young,144C. J. S. Young,119S. Youssef,22D. R. Yu,15J. Yu,8J. Yu,113L. Yuan,66 A. Yurkewicz,107B. Zabinski,39R. Zaidan,62A. M. Zaitsev,129,ddS. Zambito,23L. Zanello,133a,133bD. Zanzi,100 A. Zaytsev,25C. Zeitnitz,176M. Zeman,127A. Zemla,39O. Zenin,129T. Zˇ enisˇ,145aD. Zerwas,116G. Zevi della Porta,57

D. Zhang,88H. Zhang,89J. Zhang,6L. Zhang,152X. Zhang,33dZ. Zhang,116Z. Zhao,33bA. Zhemchugov,64 J. Zhong,119B. Zhou,88N. Zhou,164C. G. Zhu,33dH. Zhu,42J. Zhu,88Y. Zhu,33bX. Zhuang,33aA. Zibell,99 D. Zieminska,60N. I. Zimin,64C. Zimmermann,82R. Zimmermann,21S. Zimmermann,21S. Zimmermann,48 Z. Zinonos,123a,123bM. Ziolkowski,142R. Zitoun,5L. Zˇ ivkovic´,35G. Zobernig,174A. Zoccoli,20a,20bM. zur Nedden,16

V. Zutshi,107and L. Zwalinski30 (ATLAS Collaboration)

1School of Chemistry and Physics, University of Adelaide, Adelaide, Australia 2

Physics Department, SUNY Albany, Albany, New York, USA

3Department of Physics, University of Alberta, Edmonton, Alberta, Canada 4aDepartment of Physics, Ankara University, Ankara, Turkey

4bDepartment of Physics, Gazi University, Ankara, Turkey

4cDivision of Physics, TOBB University of Economics and Technology, Ankara, Turkey 4dTurkish Atomic Energy Authority, Ankara, Turkey

5LAPP, CNRS/IN2P3 and Universite´ de Savoie, Annecy-le-Vieux, France 6High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois, USA

7Department of Physics, University of Arizona, Tucson, Arizona, USA 8Department of Physics, The University of Texas at Arlington, Arlington, Texas, USA

9Physics Department, University of Athens, Athens, Greece

10Physics Department, National Technical University of Athens, Zografou, Greece 11Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan

12Institut de Fı´sica d’Altes Energies and Departament de Fı´sica de la Universitat Auto`noma de Barcelona, Barcelona, Spain 13aInstitute of Physics, University of Belgrade, Belgrade, Serbia

13bVinca Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia 14

Department for Physics and Technology, University of Bergen, Bergen, Norway

15Physics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley, California, USA 16Department of Physics, Humboldt University, Berlin, Germany

17Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland 18School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom

19aDepartment of Physics, Bogazici University, Istanbul, Turkey 19bDepartment of Physics, Dogus University, Istanbul, Turkey

19cDepartment of Physics Engineering, Gaziantep University, Gaziantep, Turkey 20aINFN Sezione di Bologna, Bologna, Italy


Dipartimento di Fisica e Astronomia, Universita` di Bologna, Bologna, Italy

21Physikalisches Institut, University of Bonn, Bonn, Germany 22Department of Physics, Boston University, Boston, Massachusetts, USA 23Department of Physics, Brandeis University, Waltham, Massachusetts, USA 24aUniversidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, Brazil

24bFederal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil 24cFederal University of Sao Joao del Rei (UFSJ), Sao Joao del Rei, Brazil

24dInstituto de Fisica, Universidade de Sao Paulo, Sao Paulo, Brazil 25Physics Department, Brookhaven National Laboratory, Upton, New York, USA

26aNational Institute of Physics and Nuclear Engineering, Bucharest, Romania 26bNational Institute for Research and Development of Isotopic and Molecular Technologies,

Physics Department, Cluj Napoca, Romania

26cUniversity Politehnica Bucharest, Bucharest, Romania 26dWest University in Timisoara, Timisoara, Romania

27Departamento de Fı´sica, Universidad de Buenos Aires, Buenos Aires, Argentina 28Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom


Department of Physics, Carleton University, Ottawa, Ontario, Canada

30CERN, Geneva, Switzerland

31Enrico Fermi Institute, University of Chicago, Chicago, Illinois, USA 32aDepartamento de Fı´sica, Pontificia Universidad Cato´lica de Chile, Santiago, Chile 32bDepartamento de Fı´sica, Universidad Te´cnica Federico Santa Marı´a, Valparaı´so, Chile


FIG. 1 (color online).  dependence of measured d 2 N jet =dp T d in the 60 &lt; p T &lt; 80 GeV interval for six ranges of collision centrality
FIG. 1 (color online).  dependence of measured d 2 N jet =dp T d in the 60 &lt; p T &lt; 80 GeV interval for six ranges of collision centrality p.3
FIG. 2 (color online). v jet 2 as a function of jet p T in each centrality interval. The error bars on the points indicate statistical uncertainties while the shaded boxes represent the systematic uncertainties (see text)
FIG. 2 (color online). v jet 2 as a function of jet p T in each centrality interval. The error bars on the points indicate statistical uncertainties while the shaded boxes represent the systematic uncertainties (see text) p.4
FIG. 3 (color online). The hN part i dependence of v jet 2 (), f corr 2 (j), and 4v jet 2 =ð1 þ 2v jet2 Þ (d)
FIG. 3 (color online). The hN part i dependence of v jet 2 (), f corr 2 (j), and 4v jet 2 =ð1 þ 2v jet2 Þ (d) p.4


Related subjects :