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Search for Dark Matter in Events with a Hadronically Decaying

W or Z Boson and

Missing Transverse Momentum in

pp Collisions at

p

ffiffi

s

¼ 8 TeV with the ATLAS Detector

G. Aad et al.* (ATLAS Collaboration)

(Received 16 September 2013; published 29 January 2014)

A search is presented for dark matter pair production in association with a W or Z boson in pp collisions representing 20.3 fb−1 of integrated luminosity at pffiffiffis¼ 8 TeV using data recorded with the ATLAS detector at the Large Hadron Collider. Events with a hadronic jet with the jet mass consistent with a W or Z boson, and with large missing transverse momentum are analyzed. The data are consistent with the standard model expectations. Limits are set on the mass scale in effective field theories that describe the interaction of dark matter and standard model particles, and on the cross section of Higgs production and decay to invisible particles. In addition, cross section limits on the anomalous production of W or Z bosons with large missing transverse momentum are set in two fiducial regions.

DOI:10.1103/PhysRevLett.112.041802 PACS numbers: 13.85.Rm, 14.70.Fm, 14.80.Bn, 95.35.+d

Although the presence of dark matter in the Universe is well established, little is known of its particle nature or its nongravitational interactions. A suite of experiments is searching for a weakly interacting massive particle (WIMP), denoted by χ, and for interactions between χ and standard model (SM) particles [1].

One critical component of this program is the search for pair production of WIMPs at particle colliders, specifically pp → χ ¯χ at the Large Hadron Collider (LHC) via some unknown intermediate state. These searches have greatest sensitivity at low WIMP mass mχ, where direct detection

experiments are less powerful. At the LHC, the final-state WIMPs are invisible to the detectors, but the events can be detected if there is associated initial-state radiation of a SM particle [2]; an example is shown in Fig. 1.

The Tevatron and LHC collaborations have reported limits on the cross section of pp → χ ¯χ þ X where X is a hadronic jet[2–4]or a photon[5,6]. Other LHC data have been reinterpreted to constrain models where X is a leptonically decaying W [7] or Z boson [8,9]. In each case, limits are reported in terms of the mass scale Mof the

unknown interaction expressed in an effective field theory as a four-point contact interaction[10–18]. In the models considered until now, the strongest limits come from monojet analyses, due to the large rate of gluon or quark initial-state radiation relative to photon, W or Z boson radiation. The operators studied in these monojet and monophoton searches assume equal couplings of the dark matter particles to up-type and down-type quarks [CðuÞ ¼ CðdÞ]. For W boson radiation there is interference

between the diagrams in which the W boson is radiated from the u quark or the d quark. In the case of equal coupling, the interference is destructive and gives a small W boson emission rate. If, however, the up-type and down-type couplings have opposite signs [CðuÞ ¼ −CðdÞ] to give constructive interference, the relative rates of gluon, pho-ton, W or Z boson emission can change dramatically[7], such that mono-W-boson production is the dominant process.

In this Letter, a search is reported for the production of W or Z bosons decaying hadronically (to q ¯q0 or q ¯q, respec-tively) and reconstructed as a single massive jet in association with large missing transverse momentum from the undetectedχ ¯χ particles. This search, the first of its kind, is sensitive to WIMP pair production, as well as to other dark-matter-related models, such as invisible Higgs boson decays (WH or ZH production with H → χ ¯χ).

The ATLAS detector [19] at the LHC covers the pseudorapidity[20]rangejηj < 4.9 and the full azimuthal angleϕ. It consists of an inner tracking detector surrounded by a thin superconducting solenoid, electromagnetic and hadronic calorimeters, and an external muon spectrometer incorporating large superconducting toroidal magnets. A three-level trigger system is used to select interesting events for recording and subsequent offline analysis. Only data for which beams were stable and all subsystems described

d u W+ χ χ d u + W χ χ

FIG. 1. Pair production of WIMPs (χ ¯χ) in proton–proton collisions at the LHC via an unknown intermediate state, with initial-state radiation of a W boson.

* 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 articles title, journal citation, and DOI.

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above were operational are used. Applying these require-ments to pp collision data, taken at a center-of-mass energy ofpffiffiffis¼ 8 TeV during the 2012 LHC run, results in a data sample with a time-integrated luminosity of20.3 fb−1. The systematic uncertainty on the luminosity is derived, follow-ing the same methodology as that detailed in Ref. [21], from a preliminary calibration of the luminosity scale obtained from beam-separation scans performed in November 2012.

Jet candidates are reconstructed using the Cambridge–Aachen algorithm[22]with a radius param-eter of 1.2, and selected using a mass-drop filtering procedure[23,24], referred to as large-radius jets. These large-radius jets are supposed to capture the hadronic products of both quarks from W or Z boson decay. The internal structure of the large-radius jet is characterized in terms of the momentum balance of the two leading subjets, asffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffip ¼ minðpffiffiffiy T1; pT2ÞΔR=mjet where ΔR ¼

ðΔϕ1;2Þ2þ ðΔη1;2Þ2

q

and mjet is the calculated mass

of the jet. Jet candidates are also reconstructed using the anti-ktclustering algorithm[25]with a radius parameter

of 0.4, referred to as narrow jets. The inputs to both algorithms are clusters of energy deposits in calorimeter cells seeded by those with energies significantly above the measured noise and calibrated at the hadronic energy scale [26]. Jet momenta are calculated by performing a four-vector sum over these clusters, treating each topo-logical cluster [26] as an (E, ⃗p) four vector with zero mass. The direction of ⃗p is given by the line joining the reconstructed interaction point with the energy cluster. Missing transverse momentum Emiss

T is measured using

all clusters of energy deposits in the calorimeter with jηj < 4.5. Electrons, muons, jets, and Emiss

T are

recon-structed as in Refs. [26–29], respectively. The recon-struction of hadronic W boson decays with large-radius jets is validated in a t¯t-dominated control region with one muon, one large-radius jet (pT> 250 GeV,

jηj < 1.2), two additional narrow jets (pT> 40 GeV,

jηj < 4.5) separated from the leading large-radius jet, at least one b tag, and Emiss

T > 250 GeV (Fig. 2).

Candidate signal events are accepted by an inclusive Emiss

T trigger that is more than 99% efficient for events with

Emiss

T > 150 GeV. Events with significant detector noise

and noncollision backgrounds are rejected as described in Ref.[3]. In addition, events are required to have at least one large-radius jet with pT> 250 GeV, jηj < 1.2, mjet

between 50 GeV and 120 GeV, andpffiffiffiy> 0.4 to suppress background without hadronic W or Z boson decays. Two signal regions are defined by two thresholds in Emiss

T : 350

and 500 GeV. To suppress the t¯t background and multijet background, events are rejected if they contain more than one narrow jet with pT> 40 GeV and jηj < 4.5 which is

not completely overlapping with the leading large-radius jet by a separation of ΔR > 0.9, or if any narrow jet has ΔϕðEmiss

T ; jetÞ < 0.4. Finally, to suppress contributions

from W → lν production, events are rejected if they have any electron, photon, or muon candidates with pT>

10 GeV and jηj < 2.47, 2.37, or 2.5, respectively. The dominant source of background events is Z → ν¯ν production in association with jets from initial-state radi-ation. A secondary contribution comes from production of jets in association with W or Z bosons with leptonic decays in which the charged leptons fail identification require-ments or the τ leptons decay hadronically. These three backgrounds are estimated by extrapolation from a common data control region in which the selection is identical to that of the signal regions except that the muon veto is inverted and W=Z þ jets with muon decays are the dominant processes. In this muon control region dominated by W=Z þ jets with muon decays, the combined W and Z boson contribution is measured after subtracting other sources of background that are estimated using MC simulation[30]based onGEANT4[31]. Two extrapolation factors from the contribution of W=Z þ jets in the muon control region to the contributions of Z → νν þ jets and W=Z þ jets with leptonic decays in the muon-veto signal region, respectively, are derived as a function of mjetfrom

simulated samples of W and Z boson production in as-sociation with jets that are generated using SHERPA1.4.1

[32]and the CT10[33]parton distribution function (PDF) set. A second control region is defined with two muons and Emiss

T > 350 GeV, which has limited statistics and is

used only for the validation of the Z boson contribution. The W boson contribution is validated in a low-Emiss

T

control region with the same selection as the signal region but 250 GeV < Emiss

T < 350 GeV.

Other sources of background are diboson production, top quark pair production, and single-top production, which are estimated using simulated events. TheMC@NLO4.03

gen-erator[34]using the CT10 PDF with the AUET2[35]tune, interfaced toHERWIG6.520[36]andJIMMY4.31[37]for the

[GeV] jet m 60 80 100 120 140 160 180 200 Events / 10 GeV 0 20 40 60 80 100 120 140 160 180 Data Top )+jet τ / µ W(e/ uncertainty ATLAS 20.3 fb-1 s = 8 TeV > 250 GeV miss T top CR: E

FIG. 2 (color online). Distribution of mjetin the data and for the

predicted background in the top control region (CR) with one muon, one large-radius jet, two narrow jets, and at least one b tag, and Emiss

T > 250 GeV, which includes a W peak and a tail due to

the inclusion of (part of) the b jet from top decay. Uncertainties include statistical and systematic sources.

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simulation of underlying events, is used for the productions of t¯t and single-top processes, both s-channel and Wt production. The single-top, t-channel process is generated withACERMC3.8[38]interfaced toPYTHIA8.1[39], using

the CTEQ6L1[40]PDF with the AUET2B[35]tune. The diboson (ZZ, WZ, and WW) samples are produced using

HERWIG6.520 andJIMMY4.31 with the CTEQ6L1 PDF and

AUET2 tune.

Background contributions from multijet production in which large Emiss

T is due to mismeasured jet energies are

estimated by extrapolating from a sample of events with two jets and are found to be negligible [3].

Samples of simulated pp → Wχ ¯χ and pp → Zχ ¯χ events are generated usingMADGRAPH5[41], with showering and

hadronization modeled by PYTHIA8.1 using the AU2 [35]

tune and CT10 PDF, including b quarks in the initial state. Four operators are used as a representative set based on the definitions in Ref. [14]: C1 scalar, D1 scalar, D5 vector (both the constructive and destructive interference cases), and D9 tensor. In each case, mχ ¼ 1; 50, 100, 200, 400,

700, 1000, and 1300 GeV are used. The dominant sources of systematic uncertainty are due to the limited number of events in the control region, theoretical uncertainties in the simulated samples used for extrapolation, uncertainties in the large-radius jet energy calibration and momentum resolution [23], and uncertainties in the Emiss

T . Additional

minor uncertainties are due to the levels of initial-state and final-state radiation, parton distribution functions, lepton reconstruction and identification efficiencies, and momen-tum resolution.

The data and predicted backgrounds in the two signal regions are shown in TableIfor the total number of events and in Fig.3for the mjetdistribution. The data agree well

with the background estimate for each Emiss

T threshold.

Exclusion limits are set on the dark matter signals using the predicted shape of the mjetdistribution and the CLs method [42], calculated with toy simulated experiments in which the systematic uncertainties have been marginalized. Figure 4 shows the exclusion regions at 90% confidence level (C.L.) in the M vs mχ plane for various operators,

where Mneed not be the same for the different operators.

Limits on the dark matter–nucleon scattering cross sections are reported using the method of Ref. [14] in Fig.5for both the spin-independent (C1, D1, D5) and the spin-dependent interaction model (D9). References[14,50]

discuss the valid region of the effective field theory, which becomes a poor approximation if the mass of the inter-mediate state is below the momentum transferred in the interaction. The results are compared with measurements from direct detection experiments[43–49].

TABLE I. Data and estimated background yields in the two signal regions. Uncertainties include statistical and systematic contributions.

Process Emiss

T > 350 GeV EmissT > 500 GeV

Z → ν¯ν 402þ39−34 54þ8−10 W → lν, Z → ll∓ 210þ20−18 22þ4−5 WW, WZ, ZZ 57þ11−8 9.1þ1.3−1.1 t¯t, single t 39þ10−4 3.7þ1.7−1.3 Total 707þ48−38 89þ9−12 Data 705 89 Events / 10 GeV 0 50 100 150 200 250 DataZ(νν)+jet )+jet τ / µ W/Z(e/ Top Diboson uncertainty D5(u=d) x100 D5(u=-d) x1 ATLAS 20.3 fb-1 s = 8 TeV > 350 GeV miss T SR: E [GeV] jet m 50 60 70 80 90 100 110 120 Events / 10 GeV 0 5 10 15 20 25 30 35 D5(u=d) x20 D5(u=-d) x0.2 > 500 GeV miss T SR: E

FIG. 3 (color online). Distribution of mjetin the data and for

the predicted background in the signal regions (SR) with Emiss

T > 350 GeV (top) and EmissT > 500 GeV (bottom). Also

shown are the combined mono-W-boson and mono-Z-boson signal distributions with mχ ¼ 1 GeV and M¼ 1 TeV for the

D5 destructive and D5 constructive cases, scaled by factors defined in the legends. Uncertainties include statistical and systematic contributions. [GeV] χ m 0 200 400 600 800 1000 1200 [GeV] * M 1 10 2 10 3 10 4 10 5 10 D9:obs D5(u=-d):obs D5(u=d):obs D1:obs C1:obs ATLAS 20.3 fb-1 s = 8 TeV 90% CL

FIG. 4 (color online). Observed limits on the effective theory mass scale Mas a function of mχ at 90% C.L. from combined

mono-W-boson and mono-Z-boson signals for various operators. For each operator, the values below the corresponding line are excluded.

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This search for dark matter pair production in association with a W or Z boson extends the limits on the dark matter– nucleon scattering cross section in the low mass region mχ < 10 GeV where the direct detection experiments

have less sensitivity. The new limits are also compared to the limits set by ATLAS in the 7 TeV monojet analysis

[3]. For the spin-independent case with the opposite-sign up-type and down-type couplings, the limits are improved by about 3 orders of magnitude, as the constructive interference leads to a very large increase in the W-boson-associated production cross section. For other cases, the limits are similar.

To complement the effective field theory models, limits are calculated for a simple dark matter production theory with a light mediator, the Higgs boson. The upper limit on the cross section of Higgs boson production through WH and ZH modes and decay to invisible particles is 1.3 pb at 95% C.L. for mH ¼ 125 GeV. Figure 6shows the upper

limit of the total cross section of WH and ZH processes

with H → χ ¯χ, normalized to the SM next-to-leading order prediction for the WH and ZH production cross section (0.8 pb for mH ¼ 125 GeV)[51], which is 1.6 at 95% C.L.

for mH ¼ 125 GeV.

In addition, limits are calculated on dark matter Wχ ¯χ or Zχ ¯χ production within two fiducial regions defined at parton level: pWorZ

T > 250 GeV, jηWorZj < 1.2; two

quarks from W or Z boson decay withpffiffiffiy> 0.4; at most one additional narrow jet [pT> 40 GeV, jηj < 4.5,

ΔR ðnarrow jet; W or ZÞ > 0.9]; no electron, photon, or muon with pT> 10 GeV and jηj < 2.47, 2.37, or 2.5,

respectively; pχ ¯χT > 350 or 500 GeV. The fiducial

efficien-cies are similar for various dark matter signals, and the smallest value isð63  1Þ% in both fiducial regions. The observed upper limit on the fiducial cross section is 4.4 fb (2.2 fb) at 95% C.L. for pχ ¯χT > 350 GeV (500 GeV) and the

expected limit is 5.1 fb (1.6 fb) with negligible dependence on the dark matter production model.

In conclusion, this Letter reports the first LHC limits on dark matter production in events with a hadronically decaying W or Z boson and large missing transverse momentum. In the case of constructive interference between up-type and down-type contributions, the results set the strongest limits on the mass scale of M of the

unknown mediating interaction, surpassing those from the monojet signature.

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 and NCN, Poland; GRICES and FCT, Portugal; MNE/IFA, Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ, Slovenia; DST/NRF, South Africa; MINECO, 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; U.S. DOE and NSF, United States of America. The crucial computing support from all WLCG partners is acknowl-edged gratefully, in particular from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark,

[GeV] χ m 1 10 102 3 10 -46 -44 10 -42 10 -40 10 -38 10 -36 10 SIMPLE 2011 -W + IceCube W b IceCube b COUPP 2012 PICASSO 2012 D9:obs ) χ χ D9: ATLAS 7TeV j( = 8 TeV s -1 20.3 fb spin-dependent ATLAS [GeV] χ m 1 10 102 3 10 ] 2 -N cross-section [cmχ -46 10 -44 10 -42 10 -40 10 -38 10 -36 10 D5(u=-d):obsD5(u=d):obs ) χ χ D5:ATLAS 7TeV j( COUPP 2012 CoGeNT 2010 XENON100 2012 CDMS low-energy spin-independent 90% CL

FIG. 5 (color online). Limits onχ–nucleon cross sections as a function of mχ at 90% C.L. for independent (left) and

spin-dependent (right) operators in effective field theory, compared to previous limits[43–49]. [GeV] H m 120 140 160 180 200 220 240 260 280 300 (W/Z H) total SM σ W/Z inv) / → (W/Z H σ 0 1 2 3 4 5 6 7 8 9 Observed 95% CL Expected 95% CL σ 1 ± Expected σ 2 ± Expected ATLAS 20.3 fb-1 s = 8 TeV > 350 GeV miss T SR: E

FIG. 6 (color online). Limit on the Higgs boson cross section for decay to invisible particles divided by the cross section for decays to standard model particles as a function of mH at

95% C.L., derived from the signal region (SR) with Emiss

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D. L. Adams,25T. N. Addy,56J. Adelman,177S. Adomeit,99T. Adye,130S. Aefsky,23T. Agatonovic-Jovin,13bJ. A. Aguilar-Saavedra,125b,c M. Agustoni,17S. P. Ahlen,22A. Ahmad,149F. Ahmadov,64,d M. Ahsan,41G. Aielli,134a,134bT. P. A. Åkesson,80G. Akimoto,156A. V. Akimov,95M. A. Alam,76J. Albert,170S. Albrand,55M. J. Alconada Verzini,70M. Aleksa,30 I. N. Aleksandrov,64F. Alessandria,90aC. Alexa,26aG. Alexander,154G. Alexandre,49T. Alexopoulos,10M. Alhroob,165a,165c M. Aliev,16G. Alimonti,90aL. Alio,84J. Alison,31B. M. M. Allbrooke,18L. J. Allison,71P. P. Allport,73S. E. Allwood-Spiers,53J. Almond,83A. Aloisio,103a,103bR. Alon,173A. Alonso,36F. Alonso,70A. Altheimer,35B. Alvarez Gonzalez,89 M. G. Alviggi,103a,103bK. Amako,65Y. Amaral Coutinho,24aC. Amelung,23V. V. Ammosov,129,aS. P. Amor Dos Santos,125a A. Amorim,125a,eS. Amoroso,48N. Amram,154G. Amundsen,23C. Anastopoulos,30L. S. Ancu,17N. Andari,30T. Andeen,35 C. F. Anders,58bG. Anders,58a K. J. Anderson,31A. Andreazza,90a,90bV. Andrei,58a X. S. Anduaga,70 S. Angelidakis,9 P. Anger,44A. Angerami,35F. Anghinolfi,30A. V. Anisenkov,108N. Anjos,125aA. Annovi,47A. Antonaki,9M. Antonelli,47

A. Antonov,97J. Antos,145b F. Anulli,133aM. Aoki,102L. Aperio Bella,18R. Apolle,119,f G. Arabidze,89I. Aracena,144 Y. Arai,65A. T. H. Arce,45S. Arfaoui,149 J.-F. Arguin,94S. Argyropoulos,42E. Arik,19a,a M. Arik,19a A. J. Armbruster,88 O. Arnaez,82V. Arnal,81O. Arslan,21A. Artamonov,96G. Artoni,133a,133bS. Asai,156N. Asbah,94S. Ask,28B. Åsman,147a,147b L. Asquith,6K. Assamagan,25R. Astalos,145aA. Astbury,170M. Atkinson,166N. B. Atlay,142 B. Auerbach,6 E. Auge,116 K. Augsten,127M. Aurousseau,146bG. Avolio,30G. Azuelos,94,gY. Azuma,156M. A. Baak,30C. Bacci,135a,135bA. M. Bach,15 H. Bachacou,137K. Bachas,155M. Backes,30M. Backhaus,21J. Backus Mayes,144 E. Badescu,26a P. Bagiacchi,133a,133b P. Bagnaia,133a,133bY. Bai,33aD. C. Bailey,159T. Bain,35J. T. Baines,130O. K. Baker,177S. Baker,77P. Balek,128F. Balli,137 E. Banas,39S. Banerjee,174D. Banfi,30A. Bangert,151V. Bansal,170H. S. Bansil,18L. Barak,173S. P. Baranov,95T. Barber,48

E. L. Barberio,87 D. Barberis,50a,50bM. Barbero,84D. Y. Bardin,64T. Barillari,100M. Barisonzi,176 T. Barklow,144 N. Barlow,28B. M. Barnett,130 R. M. Barnett,15 A. Baroncelli,135aG. Barone,49A. J. Barr,119 F. Barreiro,81J. Barreiro

Guimarães da Costa,57R. Bartoldus,144A. E. Barton,71V. Bartsch,150A. Bassalat,116A. Basye,166R. L. Bates,53 L. Batkova,145aJ. R. Batley,28M. Battistin,30F. Bauer,137H. S. Bawa,144,hT. Beau,79P. H. Beauchemin,162R. Beccherle,50a P. Bechtle,21H. P. Beck,17K. Becker,176S. Becker,99M. Beckingham,139A. J. Beddall,19cA. Beddall,19cS. Bedikian,177 V. A. Bednyakov,64C. P. Bee,84L. J. Beemster,106T. A. Beermann,176M. Begel,25K. Behr,119C. Belanger-Champagne,86 P. J. Bell,49W. H. Bell,49G. Bella,154L. Bellagamba,20aA. Bellerive,29M. Bellomo,30A. Belloni,57O. L. Beloborodova,108,i K. Belotskiy,97O. Beltramello,30O. Benary,154D. Benchekroun,136aK. Bendtz,147a,147bN. Benekos,166Y. Benhammou,154 E. Benhar Noccioli,49J. A. Benitez Garcia,160b D. P. Benjamin,45J. R. Bensinger,23K. Benslama,131S. Bentvelsen,106 D. Berge,30E. Bergeaas Kuutmann,16N. Berger,5F. Berghaus,170E. Berglund,106J. Beringer,15C. Bernard,22P. Bernat,77 R. Bernhard,48C. Bernius,78F. U. Bernlochner,170T. Berry,76P. Berta,128C. Bertella,84F. Bertolucci,123a,123bM. I. Besana,90a

G. J. Besjes,105 O. Bessidskaia,147a,147bN. Besson,137S. Bethke,100W. Bhimji,46R. M. Bianchi,124L. Bianchini,23 M. Bianco,30 O. Biebel,99S. P. Bieniek,77K. Bierwagen,54J. Biesiada,15 M. Biglietti,135aJ. Bilbao De Mendizabal,49

H. Bilokon,47M. Bindi,20a,20b S. Binet,116A. Bingul,19c C. Bini,133a,133bB. Bittner,100 C. W. Black,151J. E. Black,144 K. M. Black,22D. Blackburn,139 R. E. Blair,6 J.-B. Blanchard,137T. Blazek,145aI. Bloch,42C. Blocker,23J. Blocki,39 W. Blum,82,aU. Blumenschein,54G. J. Bobbink,106V. S. Bobrovnikov,108S. S. Bocchetta,80A. Bocci,45C. R. Boddy,119

M. Boehler,48J. Boek,176T. T. Boek,176 N. Boelaert,36J. A. Bogaerts,30A. G. Bogdanchikov,108 A. Bogouch,91,a C. Bohm,147a J. Bohm,126 V. Boisvert,76T. Bold,38a V. Boldea,26a A. S. Boldyrev,98N. M. Bolnet,137 M. Bomben,79

M. Bona,75 M. Boonekamp,137 S. Bordoni,79C. Borer,17A. Borisov,129 G. Borissov,71M. Borri,83S. Borroni,42 J. Bortfeldt,99V. Bortolotto,135a,135bK. Bos,106 D. Boscherini,20a M. Bosman,12H. Boterenbrood,106J. Bouchami,94 J. Boudreau,124E. V. Bouhova-Thacker,71D. Boumediene,34C. Bourdarios,116N. Bousson,84S. Boutouil,136dA. Boveia,31

J. Boyd,30I. R. Boyko,64I. Bozovic-Jelisavcic,13b J. Bracinik,18P. Branchini,135aA. Brandt,8 G. Brandt,15O. Brandt,54 U. Bratzler,157 B. Brau,85J. E. Brau,115H. M. Braun,176,a S. F. Brazzale,165a,165c B. Brelier,159K. Brendlinger,121 R. Brenner,167S. Bressler,173 T. 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,32bJ. Brosamer,15 E. Brost,115 G. Brown,83

J. Brown,55P. A. Bruckman de Renstrom,39D. Bruncko,145b R. Bruneliere,48S. Brunet,60A. Bruni,20a G. Bruni,20a M. Bruschi,20aL. Bryngemark,80T. Buanes,14Q. Buat,55F. Bucci,49J. Buchanan,119P. Buchholz,142R. M. Buckingham,119 A. G. Buckley,46S. I. Buda,26aI. A. Budagov,64B. Budick,109F. Buehrer,48L. Bugge,118O. Bulekov,97A. C. Bundock,73 M. Bunse,43H. Burckhart,30S. Burdin,73T. Burgess,14S. Burke,130I. Burmeister,43E. Busato,34V. Büscher,82P. Bussey,53 C. P. Buszello,167B. Butler,57J. M. Butler,22A. I. Butt,3C. M. Buttar,53J. M. Butterworth,77W. Buttinger,28A. Buzatu,53

M. Byszewski,10S. Cabrera Urbán,168D. Caforio,20a,20b O. Cakir,4a P. Calafiura,15G. Calderini,79 P. Calfayan,99 R. Calkins,107 L. P. Caloba,24aR. Caloi,133a,133bD. Calvet,34S. Calvet,34R. Camacho Toro,49P. Camarri,134a,134b D. Cameron,118L. M. Caminada,15R. Caminal Armadans,12S. Campana,30M. Campanelli,77V. Canale,103a,103bF. Canelli,31

A. Canepa,160a J. Cantero,81R. Cantrill,76T. Cao,40M. D. M. Capeans Garrido,30I. Caprini,26a M. Caprini,26a M. Capua,37a,37bR. Caputo,82R. Cardarelli,134aT. Carli,30G. Carlino,103aL. Carminati,90a,90bS. Caron,105 E. Carquin,32a G. D. Carrillo-Montoya,146cA. A. Carter,75J. R. Carter,28J. Carvalho,125a,jD. Casadei,77M. P. Casado,12C. Caso,50a,50b,a

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J. R. Catmore,71 A. Cattai,30G. Cattani,134a,134bS. Caughron,89V. Cavaliere,166 D. Cavalli,90a M. Cavalli-Sforza,12 V. Cavasinni,123a,123bF. Ceradini,135a,135bB. Cerio,45K. Cerny,128A. S. Cerqueira,24bA. Cerri,15L. Cerrito,75F. Cerutti,15 A. Cervelli,17S. A. Cetin,19bA. Chafaq,136aD. Chakraborty,107 I. Chalupkova,128K. Chan,3 P. Chang,166B. Chapleau,86

J. D. Chapman,28J. W. Chapman,88D. Charfeddine,116 D. G. Charlton,18V. Chavda,83C. A. Chavez Barajas,30 S. Cheatham,86S. Chekanov,6 S. V. Chekulaev,160aG. A. Chelkov,64M. A. Chelstowska,88C. Chen,63H. Chen,25 K. Chen,149S. Chen,33cX. Chen,174Y. Chen,35Y. Cheng,31A. Cheplakov,64R. Cherkaoui El Moursli,136eV. Chernyatin,25,a

E. Cheu,7 L. Chevalier,137V. Chiarella,47G. Chiefari,103a,103bJ. T. Childers,30A. Chilingarov,71 G. Chiodini,72a A. S. Chisholm,18R. T. Chislett,77A. Chitan,26aM. V. Chizhov,64G. Choudalakis,31S. Chouridou,9 B. K. B. Chow,99 I. A. Christidi,77 D. Chromek-Burckhart,30M. L. Chu,152 J. Chudoba,126G. Ciapetti,133a,133bA. K. Ciftci,4aR. Ciftci,4a D. Cinca,62V. Cindro,74A. Ciocio,15M. Cirilli,88P. Cirkovic,13bZ. H. Citron,173M. Citterio,90aM. Ciubancan,26aA. Clark,49

P. J. Clark,46 R. N. Clarke,15J. C. Clemens,84B. Clement,55C. Clement,147a,147bY. Coadou,84M. Cobal,165a,165c A. Coccaro,139 J. Cochran,63S. Coelli,90a L. Coffey,23J. G. Cogan,144J. Coggeshall,166J. Colas,5 B. Cole,35S. Cole,107

A. P. Colijn,106C. Collins-Tooth,53J. Collot,55T. Colombo,58c G. Colon,85G. Compostella,100P. Conde Muiño,125a E. Coniavitis,167M. C. Conidi,12S. M. Consonni,90a,90bV. Consorti,48S. Constantinescu,26a C. Conta,120a,120bG. Conti,57 F. Conventi,103a,kM. Cooke,15B. D. Cooper,77A. M. Cooper-Sarkar,119N. J. Cooper-Smith,76K. Copic,15T. Cornelissen,176 M. Corradi,20a F. Corriveau,86,lA. Corso-Radu,164 A. Cortes-Gonzalez,12G. Cortiana,100 G. Costa,90a M. J. Costa,168 D. Costanzo,140D. Côté,8G. Cottin,32aL. Courneyea,170G. Cowan,76B. E. Cox,83K. Cranmer,109G. Cree,29S.

Crépé-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,142P. Czodrowski,44Z. Czyczula,177S. D’Auria,53 M. D’Onofrio,73A. D’Orazio,133a,133bM. J. Da Cunha Sargedas De Sousa,125aC. Da Via,83W. Dabrowski,38aA. Dafinca,119 T. Dai,88F. Dallaire,94C. Dallapiccola,85M. Dam,36D. S. Damiani,138A. C. Daniells,18M. Dano Hoffmann,36V. Dao,105 G. Darbo,50a G. L. Darlea,26c S. Darmora,8 J. A. Dassoulas,42W. Davey,21C. David,170 T. Davidek,128 E. Davies,119,f M. Davies,94O. Davignon,79A. R. Davison,77Y. Davygora,58aE. Dawe,143I. Dawson,140R. K. Daya-Ishmukhametova,23 K. De,8 R. de Asmundis,103aS. De Castro,20a,20bS. De Cecco,79J. de Graat,99N. De Groot,105P. de Jong,106C. De La Taille,116H. De la Torre,81F. De Lorenzi,63L. De Nooij,106D. De Pedis,133aA. De Salvo,133aU. De Sanctis,165a,165cA. De Santo,150J. B. De Vivie De Regie,116G. De Zorzi,133a,133bW. J. Dearnaley,71R. Debbe,25C. Debenedetti,46B. Dechenaux,55 D. V. Dedovich,64J. Degenhardt,121J. Del Peso,81T. Del Prete,123a,123bT. Delemontex,55F. Deliot,137M. Deliyergiyev,74 A. Dell’Acqua,30L. Dell’Asta,22M. Della Pietra,103a,kD. della Volpe,103a,103bM. Delmastro,5P. A. Delsart,55C. Deluca,106

S. Demers,177 M. Demichev,64A. Demilly,79B. Demirkoz,12,mS. P. Denisov,129 D. Derendarz,39J. E. Derkaoui,136d F. Derue,79P. Dervan,73K. Desch,21P. O. Deviveiros,106A. Dewhurst,130B. DeWilde,149S. Dhaliwal,106R. Dhullipudi,78,n A. Di Ciaccio,134a,134bL. Di Ciaccio,5 C. Di Donato,103a,103bA. Di Girolamo,30B. Di Girolamo,30A. Di Mattia,153B. Di

Micco,135a,135bR. Di Nardo,47A. Di Simone,48R. Di Sipio,20a,20b D. Di Valentino,29M. A. Diaz,32a E. B. Diehl,88 J. Dietrich,42T. A. Dietzsch,58aS. Diglio,87K. Dindar Yagci,40 J. Dingfelder,21C. Dionisi,133a,133bP. Dita,26a S. Dita,26a

F. Dittus,30F. Djama,84T. Djobava,51b M. A. B. do Vale,24c A. Do Valle Wemans,125a,oT. K. O. Doan,5D. Dobos,30 E. Dobson,77J. Dodd,35C. Doglioni,49 T. Doherty,53T. Dohmae,156 Y. Doi,65,a J. Dolejsi,128Z. Dolezal,128 B. A. Dolgoshein,97,a M. Donadelli,24dS. Donati,123a,123bJ. Donini,34J. Dopke,30A. Doria,103aA. Dos Anjos,174 A. Dotti,123a,123bM. T. Dova,70 A. T. Doyle,53M. Dris,10J. Dubbert,88S. Dube,15E. Dubreuil,34 E. Duchovni,173 G. Duckeck,99O. A. Ducu,26a D. Duda,176 A. Dudarev,30F. Dudziak,63L. Duflot,116 L. Duguid,76M. Dührssen,30 M. Dunford,58aH. Duran Yildiz,4aM. Düren,52M. Dwuznik,38aJ. Ebke,99W. Edson,2C. A. Edwards,76N. C. Edwards,46 W. Ehrenfeld,21T. Eifert,144G. Eigen,14K. Einsweiler,15E. Eisenhandler,75T. Ekelof,167M. El Kacimi,136cM. Ellert,167 S. Elles,5F. Ellinghaus,82K. Ellis,75N. Ellis,30J. Elmsheuser,99M. Elsing,30D. Emeliyanov,130Y. Enari,156O. C. Endner,82

M. Endo,117R. Engelmann,149J. Erdmann,177A. Ereditato,17D. Eriksson,147aG. Ernis,176J. Ernst,2 M. Ernst,25 J. Ernwein,137 D. Errede,166S. Errede,166 E. Ertel,82M. Escalier,116 H. Esch,43C. Escobar,124 X. Espinal Curull,12 B. Esposito,47F. Etienne,84 A. I. Etienvre,137E. Etzion,154D. Evangelakou,54H. Evans,60L. Fabbri,20a,20b G. Facini,30 R. M. Fakhrutdinov,129S. Falciano,133aY. Fang,33a M. Fanti,90a,90bA. Farbin,8A. Farilla,135aT. Farooque,159S. Farrell,164

S. M. Farrington,171P. Farthouat,30F. Fassi,168P. Fassnacht,30D. Fassouliotis,9 B. Fatholahzadeh,159 A. Favareto,50a,50b L. Fayard,116P. Federic,145aO. L. Fedin,122W. Fedorko,169M. Fehling-Kaschek,48L. Feligioni,84C. Feng,33dE. J. Feng,6 H. Feng,88A. B. Fenyuk,129W. Fernando,6S. Ferrag,53J. Ferrando,53V. Ferrara,42A. Ferrari,167P. Ferrari,106R. Ferrari,120a D. E. Ferreira de Lima,53A. Ferrer,168 D. Ferrere,49C. Ferretti,88A. Ferretto Parodi,50a,50bM. Fiascaris,31F. Fiedler,82

A. Filipčič,74M. Filipuzzi,42F. Filthaut,105M. Fincke-Keeler,170 K. D. Finelli,45 M. C. N. Fiolhais,125a,jL. Fiorini,168 A. Firan,40J. Fischer,176M. J. Fisher,110E. A. Fitzgerald,23M. Flechl,48I. Fleck,142P. Fleischmann,175S. Fleischmann,176

G. T. Fletcher,140G. Fletcher,75T. Flick,176A. Floderus,80L. R. Flores Castillo,174 A. C. Florez Bustos,160b M. J. Flowerdew,100T. Fonseca Martin,17A. Formica,137A. Forti,83D. Fortin,160aD. Fournier,116H. Fox,71P. Francavilla,12

M. Franchini,20a,20b S. Franchino,30D. Francis,30 M. Franklin,57S. Franz,61M. Fraternali,120a,120bS. Fratina,121 S. T. French,28C. Friedrich,42F. Friedrich,44D. Froidevaux,30J. A. Frost,28C. Fukunaga,157E. Fullana Torregrosa,128

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B. G. Fulsom,144 J. Fuster,168 C. Gabaldon,55 O. Gabizon,173 A. Gabrielli,20a,20b A. Gabrielli,133a,133bS. Gadatsch,106 T. Gadfort,25S. Gadomski,49G. Gagliardi,50a,50b P. Gagnon,60C. Galea,99B. Galhardo,125aE. J. Gallas,119 V. Gallo,17 B. J. Gallop,130P. Gallus,127G. Galster,36K. K. Gan,110R. P. Gandrajula,62J. Gao,33b,pY. S. Gao,144,hF. M. Garay Walls,46 F. Garberson,177C. García,168J. E. García Navarro,168M. Garcia-Sciveres,15R. W. Gardner,31N. Garelli,144V. Garonne,30

C. Gatti,47G. Gaudio,120aB. Gaur,142 L. Gauthier,94P. Gauzzi,133a,133bI. L. Gavrilenko,95C. Gay,169G. Gaycken,21 E. N. Gazis,10 P. Ge,33d,q Z. Gecse,169 C. N. P. Gee,130 D. A. A. Geerts,106 C. Geich-Gimbel,21K. Gellerstedt,147a,147b C. Gemme,50aA. Gemmell,53M. H. Genest,55S. Gentile,133a,133bM. George,54S. George,76D. Gerbaudo,164A. Gershon,154

H. Ghazlane,136b N. Ghodbane,34B. Giacobbe,20a S. Giagu,133a,133bV. Giangiobbe,12 P. Giannetti,123a,123bF. Gianotti,30 B. Gibbard,25S. M. Gibson,76 M. Gilchriese,15T. P. S. Gillam,28D. Gillberg,30A. R. Gillman,130 D. M. Gingrich,3,g N. Giokaris,9M. P. Giordani,165a,165cR. Giordano,103a,103bF. M. Giorgi,16P. Giovannini,100P. F. Giraud,137D. Giugni,90a

C. Giuliani,48M. Giunta,94B. K. Gjelsten,118 I. Gkialas,155,rL. K. Gladilin,98C. Glasman,81J. Glatzer,21A. Glazov,42 G. L. Glonti,64M. Goblirsch-Kolb,100 J. R. Goddard,75J. Godfrey,143 J. Godlewski,30C. Goeringer,82S. Goldfarb,88 T. Golling,177D. Golubkov,129 A. Gomes,125a,e L. S. Gomez Fajardo,42R. Gonçalo,76J. Goncalves Pinto Firmino Da Costa,42L. Gonella,21S. González de la Hoz,168 G. Gonzalez Parra,12M. L. Gonzalez Silva,27 S. Gonzalez-Sevilla,49

J. J. Goodson,149L. Goossens,30P. A. Gorbounov,96 H. A. Gordon,25I. Gorelov,104 G. Gorfine,176B. Gorini,30 E. Gorini,72a,72b A. Gorišek,74E. Gornicki,39A. T. Goshaw,6C. Gössling,43M. I. Gostkin,64I. Gough Eschrich,164 M. Gouighri,136aD. Goujdami,136cM. P. Goulette,49A. G. Goussiou,139 C. Goy,5 S. Gozpinar,23H. M. X. Grabas,137 L. Graber,54 I. Grabowska-Bold,38a P. Grafström,20a,20b K.-J. Grahn,42J. Gramling,49 E. Gramstad,118F. Grancagnolo,72a

S. Grancagnolo,16V. Grassi,149 V. Gratchev,122 H. M. Gray,30J. A. Gray,149 E. Graziani,135aO. G. Grebenyuk,122 Z. D. Greenwood,78,nK. Gregersen,36I. M. Gregor,42P. Grenier,144J. Griffiths,8 N. Grigalashvili,64A. A. Grillo,138 K. Grimm,71 S. Grinstein,12,sP. Gris,34 Y. V. Grishkevich,98J.-F. Grivaz,116J. P. Grohs,44A. Grohsjean,42E. Gross,173

J. Grosse-Knetter,54G. C. Grossi,134a,134bJ. Groth-Jensen,173Z. J. Grout,150K. Grybel,142 F. Guescini,49D. Guest,177 O. Gueta,154C. Guicheney,34E. Guido,50a,50bT. Guillemin,116S. Guindon,2U. Gul,53C. Gumpert,44J. Gunther,127J. Guo,35

S. Gupta,119P. Gutierrez,112 N. G. Gutierrez Ortiz,53C. Gutschow,77N. Guttman,154 C. Guyot,137C. Gwenlan,119 C. B. Gwilliam,73A. Haas,109C. Haber,15H. K. Hadavand,8P. Haefner,21S. Hageboeck,21Z. Hajduk,39H. Hakobyan,178 D. Hall,119 G. Halladjian,62K. Hamacher,176 P. Hamal,114K. Hamano,87M. Hamer,54A. Hamilton,146a,tS. Hamilton,162

L. Han,33bK. Hanagaki,117 K. Hanawa,156M. Hance,15C. Handel,82P. Hanke,58a J. R. Hansen,36 J. B. Hansen,36 J. D. Hansen,36P. H. Hansen,36P. Hansson,144 K. Hara,161 A. S. Hard,174T. Harenberg,176 S. Harkusha,91D. Harper,88

R. D. Harrington,46O. M. Harris,139P. F. Harrison,171F. Hartjes,106A. Harvey,56S. Hasegawa,102 Y. Hasegawa,141 S. Hassani,137S. Haug,17M. Hauschild,30R. Hauser,89M. Havranek,21C. M. Hawkes,18R. J. Hawkings,30A. D. Hawkins,80

T. Hayashi,161D. Hayden,89C. P. Hays,119 H. S. Hayward,73S. J. Haywood,130 S. J. Head,18T. Heck,82V. Hedberg,80 L. Heelan,8 S. Heim,121 B. Heinemann,15S. Heisterkamp,36J. Hejbal,126 L. Helary,22C. Heller,99M. Heller,30 S. Hellman,147a,147bD. Hellmich,21C. Helsens,30J. Henderson,119R. C. W. Henderson,71A. Henrichs,177A. M. Henriques Correia,30S. Henrot-Versille,116C. Hensel,54G. H. Herbert,16C. M. Hernandez,8Y. Hernández Jiménez,168R. Herrberg-Schubert,16G. Herten,48R. Hertenberger,99L. Hervas,30G. G. Hesketh,77N. P. Hessey,106R. Hickling,75 E.

Higón-Rodriguez,168J. C. Hill,28K. H. Hiller,42S. Hillert,21S. J. Hillier,18I. Hinchliffe,15E. Hines,121 M. Hirose,117 D. Hirschbuehl,176 J. Hobbs,149 N. Hod,106 M. C. Hodgkinson,140P. Hodgson,140 A. Hoecker,30 M. R. Hoeferkamp,104 J. Hoffman,40D. Hoffmann,84J. I. Hofmann,58aM. Hohlfeld,82T. R. Holmes,15S. O. Holmgren,147aT. M. Hong,121L. Hooft

van Huysduynen,109 J.-Y. Hostachy,55 S. Hou,152A. Hoummada,136aJ. Howard,119 J. Howarth,83M. Hrabovsky,114 I. Hristova,16J. Hrivnac,116 T. Hryn’ova,5 P. J. Hsu,82S.-C. Hsu,139D. Hu,35X. Hu,25Y. Huang,146c Z. Hubacek,30

F. Hubaut,84 F. Huegging,21A. Huettmann,42T. B. Huffman,119E. W. Hughes,35G. Hughes,71 M. Huhtinen,30 T. A. Hülsing,82M. Hurwitz,15N. Huseynov,64,dJ. Huston,89J. Huth,57G. Iacobucci,49G. Iakovidis,10I. Ibragimov,142 L. Iconomidou-Fayard,116J. Idarraga,116E. Ideal,177P. Iengo,103aO. Igonkina,106T. Iizawa,172Y. Ikegami,65K. Ikematsu,142 M. Ikeno,65D. Iliadis,155N. Ilic,159Y. Inamaru,66T. Ince,100P. Ioannou,9M. Iodice,135aK. Iordanidou,9V. Ippolito,133a,133b

A. Irles Quiles,168 C. Isaksson,167 M. Ishino,67M. Ishitsuka,158R. Ishmukhametov,110 C. Issever,119S. Istin,19a A. V. Ivashin,129W. Iwanski,39H. Iwasaki,65J. M. Izen,41V. Izzo,103a B. Jackson,121J. N. Jackson,73M. Jackson,73 P. Jackson,1M. R. Jaekel,30V. Jain,2K. Jakobs,48S. Jakobsen,36T. Jakoubek,126J. Jakubek,127D. O. Jamin,152D. K. Jana,112

E. Jansen,77H. Jansen,30J. Janssen,21M. Janus,171R. C. Jared,174G. Jarlskog,80L. Jeanty,57

G.-Y.Jeng,151I. Jen-La Plante,31D. Jennens,87P. Jenni,48,uJ. Jentzsch,43C. Jeske,171S. Jézéquel,5M. K. Jha,20a H. Ji,174 W. Ji,82J. Jia,149Y. Jiang,33bM. Jimenez Belenguer,42S. Jin,33aA. Jinaru,26aO. Jinnouchi,158M. D. Joergensen,36D. Joffe,40 K. E. Johansson,147aP. Johansson,140K. A. Johns,7 K. Jon-And,147a,147b G. 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,s M. Kaci,168 A. Kaczmarska,39 P. Kadlecik,36M. Kado,116 H. Kagan,110 M. Kagan,144E. Kajomovitz,45 S. Kalinin,176 S. Kama,40N. Kanaya,156M. Kaneda,30S. Kaneti,28T. Kanno,158V. A. Kantserov,97J. Kanzaki,65B. Kaplan,109A. Kapliy,31

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A. N. Karyukhin,129 L. Kashif,174G. Kasieczka,58bR. D. Kass,110 A. Kastanas,14 Y. Kataoka,156 A. Katre,49J. Katzy,42 V. Kaushik,7 K. Kawagoe,69T. Kawamoto,156G. Kawamura,54S. Kazama,156V. F. Kazanin,108M. Y. Kazarinov,64 R. Keeler,170 P. T. Keener,121 R. Kehoe,40M. Keil,54J. S. Keller,139 H. Keoshkerian,5 O. Kepka,126B. P. Kerševan,74

S. Kersten,176K. Kessoku,156 J. Keung,159F. Khalil-zada,11 H. Khandanyan,147a,147bA. Khanov,113 D. Kharchenko,64 A. Khodinov,97A. Khomich,58a T. J. Khoo,28G. Khoriauli,21 A. Khoroshilov,176 V. Khovanskiy,96E. Khramov,64 J. Khubua,51b H. Kim,147a,147bS. H. Kim,161N. Kimura,172 O. Kind,16B. T. King,73M. King,66 R. S. B. King,119 S. B. King,169 J. Kirk,130 A. E. Kiryunin,100T. Kishimoto,66D. Kisielewska,38a T. Kitamura,66 T. Kittelmann,124 K. Kiuchi,161E. Kladiva,145bM. Klein,73U. Klein,73K. Kleinknecht,82P. Klimek,147a,147bA. Klimentov,25R. Klingenberg,43 J. A. Klinger,83E. B. Klinkby,36T. Klioutchnikova,30P. F. Klok,105E.-E. Kluge,58aP. Kluit,106S. Kluth,100E. Kneringer,61E G.Knoops,84A. Knue,54B. R. Ko,45T. Kobayashi,156M. Kobel,44M. Kocian,144P. Kodys,128S. Koenig,82P. Koevesarki,21

T. Koffas,29E. Koffeman,106L. A. Kogan,119 S. Kohlmann,176 Z. Kohout,127 T. Kohriki,65T. Koi,144 H. Kolanoski,16 I. Koletsou,5 J. Koll,89 A. A. Komar,95,a Y. Komori,156 T. Kondo,65K. Köneke,48A. C. König,105 T. Kono,65,v R. Konoplich,109,wN. Konstantinidis,77R. Kopeliansky,153S. Koperny,38a L. Köpke,82A. K. Kopp,48K. Korcyl,39 K. Kordas,155A. Korn,46A. A. Korol,108I. Korolkov,12E. V. Korolkova,140V. A. Korotkov,129O. Kortner,100S. Kortner,100

V. V. Kostyukhin,21S. Kotov,100V. M. Kotov,64A. Kotwal,45C. Kourkoumelis,9 V. Kouskoura,155 A. Koutsman,160a R. Kowalewski,170T. Z. Kowalski,38aW. Kozanecki,137A. S. Kozhin,129V. Kral,127V. A. Kramarenko,98G. Kramberger,74 M. W. Krasny,79A. Krasznahorkay,109J. K. Kraus,21A. Kravchenko,25S. Kreiss,109J. Kretzschmar,73K. Kreutzfeldt,52

N. Krieger,54P. Krieger,159 K. Kroeninger,54H. Kroha,100 J. Kroll,121 J. Kroseberg,21J. Krstic,13a U. Kruchonak,64 H. Krüger,21 T. Kruker,17N. Krumnack,63 Z. V. Krumshteyn,64A. Kruse,174 M. C. Kruse,45M. Kruskal,22T. Kubota,87 S. Kuday,4aS. Kuehn,48A. Kugel,58cT. Kuhl,42V. Kukhtin,64Y. Kulchitsky,91S. Kuleshov,32bM. Kuna,133a,133bJ. Kunkle,121 A. Kupco,126H. Kurashige,66M. Kurata,161Y. A. Kurochkin,91R. Kurumida,66V. Kus,126E. S. Kuwertz,148M. Kuze,158 J. Kvita,143R. Kwee,16A. La Rosa,49L. La Rotonda,37a,37bL. Labarga,81S. Lablak,136aC. Lacasta,168F. Lacava,133a,133b J. Lacey,29H. Lacker,16D. Lacour,79V. R. Lacuesta,168E. Ladygin,64R. Lafaye,5 B. Laforge,79T. Lagouri,177 S. Lai,48 H. Laier,58aE. Laisne,55L. Lambourne,77C. L. Lampen,7W. Lampl,7 E. Lançon,137 U. Landgraf,48 M. P. J. Landon,75

V. S. Lang,58a C. Lange,42A. J. Lankford,164 F. Lanni,25K. Lantzsch,30A. Lanza,120aS. Laplace,79C. Lapoire,21 J. F. Laporte,137T. Lari,90aA. Larner,119M. Lassnig,30P. Laurelli,47V. Lavorini,37a,37bW. Lavrijsen,15P. Laycock,73 B. T. Le,55O. Le Dortz,79E. Le Guirriec,84E. Le Menedeu,12T. LeCompte,6F. Ledroit-Guillon,55C. A. Lee,152H. Lee,106 J. S. H. Lee,117S. C. Lee,152L. Lee,177G. Lefebvre,79M. Lefebvre,170M. Legendre,137F. Legger,99C. Leggett,15A. Lehan,73 M. Lehmacher,21G. Lehmann Miotto,30A. G. Leister,177M. A. L. Leite,24dR. Leitner,128D. Lellouch,173B. Lemmer,54 V. Lendermann,58a K. J. C. Leney,146cT. Lenz,106 G. Lenzen,176B. Lenzi,30R. Leone,7 K. Leonhardt,44S. Leontsinis,10 C. Leroy,94J.-R. Lessard,170C. G. Lester,28C. M. Lester,121J. Levêque,5 D. Levin,88 L. J. Levinson,173A. Lewis,119 G. H. Lewis,109A. M. Leyko,21M. Leyton,16B. Li,33b,xB. Li,84H. Li,149H. L. Li,31S. Li,45X. Li,88Z. Liang,119,yH. Liao,34 B. Liberti,134aP. Lichard,30K. Lie,166J. Liebal,21W. Liebig,14C. Limbach,21A. Limosani,87M. Limper,62S. C. Lin,152,z F. Linde,106B. E. Lindquist,149J. T. Linnemann,89E. Lipeles,121A. Lipniacka,14M. Lisovyi,42T. M. Liss,166D. Lissauer,25 A. Lister,169A. M. Litke,138B. Liu,152D. Liu,152J. B. Liu,33b K. Liu,33b,aaL. Liu,88M. Liu,45M. Liu,33bY. Liu,33b

M. Livan,120a,120bS. S. A. Livermore,119 A. Lleres,55J. Llorente Merino,81 S. L. Lloyd,75F. Lo Sterzo,133a,133b E. Lobodzinska,42P. Loch,7 W. S. Lockman,138T. Loddenkoetter,21F. K. Loebinger,83 A. E. Loevschall-Jensen,36 A. Loginov,177C. W. Loh,169T. Lohse,16K. Lohwasser,48M. Lokajicek,126V. P. Lombardo,5J. D. Long,88R. E. Long,71 L. Lopes,125aD. Lopez Mateos,57B. Lopez Paredes,140J. Lorenz,99N. Lorenzo Martinez,116M. Losada,163P. Loscutoff,15 M. J. Losty,160a,aX. Lou,41A. Lounis,116J. Love,6P. A. Love,71A. J. Lowe,144,hF. Lu,33aH. J. Lubatti,139C. Luci,133a,133b A. Lucotte,55D. Ludwig,42I. Ludwig,48F. Luehring,60W. Lukas,61L. Luminari,133a E. Lund,118J. Lundberg,147a,147b O. Lundberg,147a,147bB. Lund-Jensen,148M. Lungwitz,82 D. Lynn,25R. Lysak,126E. Lytken,80H. Ma,25L. L. Ma,33d G. Maccarrone,47A. Macchiolo,100 B. Maček,74J. Machado Miguens,125aD. Macina,30R. Mackeprang,36R. Madar,48 R. J. Madaras,15H. J. Maddocks,71W. F. Mader,44A. Madsen,167M. Maeno,8T. Maeno,25L. Magnoni,164E. Magradze,54

K. Mahboubi,48J. Mahlstedt,106S. Mahmoud,73 G. Mahout,18C. Maiani,137C. Maidantchik,24a A. Maio,125a,e S. Majewski,115 Y. Makida,65N. Makovec,116P. Mal,137,bbB. Malaescu,79P. Malecki,39 V. P. Maleev,122 F. Malek,55 U. Mallik,62D. Malon,6 C. Malone,144S. Maltezos,10V. M. Malyshev,108S. Malyukov,30J. Mamuzic,13bL. Mandelli,90a I. Mandić,74R. Mandrysch,62J. Maneira,125aA. Manfredini,100L. Manhaes de Andrade Filho,24bJ. A. Manjarres Ramos,137 A. Mann,99P. M. Manning,138A. Manousakis-Katsikakis,9 B. Mansoulie,137 R. Mantifel,86L. Mapelli,30 L. March,168

J. F. Marchand,29F. Marchese,134a,134b G. Marchiori,79M. Marcisovsky,126C. P. Marino,170C. N. Marques,125a F. Marroquim,24aZ. Marshall,15L. 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,sS. Martin-Haugh,150A. C. Martyniuk,170M. Marx,139

F. Marzano,133aA. Marzin,112 L. Masetti,82T. Mashimo,156R. Mashinistov,95J. Masik,83A. L. Maslennikov,108 I. Massa,20a,20bN. Massol,5 P. Mastrandrea,149A. Mastroberardino,37a,37bT. Masubuchi,156H. Matsunaga,156 T. Matsushita,66P. Mättig,176S. Mättig,42J. Mattmann,82C. Mattravers,119,fJ. Maurer,84S. J. Maxfield,73D. A. Maximov,108,

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i

R. Mazini,152L. Mazzaferro,134a,134bM. Mazzanti,90aG. Mc Goldrick,159S. P. Mc Kee,88A. McCarn,88R. L. McCarthy,149 T. G. McCarthy,29N. A. McCubbin,130 K. W. McFarlane,56,a J. A. Mcfayden,140 G. Mchedlidze,51bT. Mclaughlan,18

S. J. McMahon,130R. A. McPherson,170,lA. Meade,85J. Mechnich,106M. Mechtel,176 M. Medinnis,42S. Meehan,31 R. Meera-Lebbai,112S. Mehlhase,36A. Mehta,73K. Meier,58aC. Meineck,99B. Meirose,80C. Melachrinos,31B. R. Mellado

Garcia,146c F. Meloni,90a,90b L. Mendoza Navas,163A. Mengarelli,20a,20bS. Menke,100E. Meoni,162 K. M. Mercurio,57 S. Mergelmeyer,21N. Meric,137P. Mermod,49L. Merola,103a,103bC. Meroni,90aF. S. Merritt,31H. Merritt,110A. Messina,30,cc J. Metcalfe,25A. S. Mete,164C. Meyer,82C. Meyer,31J.-P. Meyer,137J. Meyer,30J. Meyer,54S. Michal,30R. P. Middleton,130 S. Migas,73L. Mijović,137G. Mikenberg,173 M. Mikestikova,126 M. Mikuž,74D. W. Miller,31W. J. Mills,169C. Mills,57

A. Milov,173D. A. Milstead,147a,147bD. Milstein,173A. A. Minaenko,129M. Miñano Moya,168 I. A. Minashvili,64 A. I. Mincer,109B. Mindur,38a M. Mineev,64Y. Ming,174L. M. Mir,12G. Mirabelli,133aT. Mitani,172J. Mitrevski,138

V. A. Mitsou,168S. Mitsui,65P. S. Miyagawa,140 J. U. Mjörnmark,80T. Moa,147a,147bV. Moeller,28 S. Mohapatra,149 W. Mohr,48S. Molander,147a,147bR. Moles-Valls,168 A. Molfetas,30K. Mönig,42C. Monini,55J. Monk,36E. Monnier,84 J. Montejo Berlingen,12F. Monticelli,70S. Monzani,20a,20bR. W. Moore,3C. Mora Herrera,49A. Moraes,53N. Morange,62 J. Morel,54D. Moreno,82M. Moreno Llácer,168P. Morettini,50aM. Morgenstern,44M. Morii,57S. Moritz,82A. K. Morley,148 G. Mornacchi,30J. D. Morris,75L. Morvaj,102H. G. Moser,100M. Mosidze,51bJ. Moss,110R. Mount,144E. Mountricha,10,dd S. V. Mouraviev,95,aE. J. W. Moyse,85R. D. Mudd,18F. Mueller,58aJ. Mueller,124K. Mueller,21T. Mueller,28T. Mueller,82 D. Muenstermann,49Y. Munwes,154J. A. Murillo Quijada,18W. J. Murray,130I. Mussche,106E. Musto,153A. G. Myagkov,129,

ee

M. Myska,126O. Nackenhorst,54 J. Nadal,12K. Nagai,61R. Nagai,158 Y. Nagai,84K. Nagano,65A. Nagarkar,110 Y. Nagasaka,59M. Nagel,100A. M. Nairz,30Y. Nakahama,30K. Nakamura,65T. Nakamura,156I. Nakano,111 H. Namasivayam,41G. Nanava,21A. Napier,162R. Narayan,58bM. Nash,77,fT. Nattermann,21T. Naumann,42G. Navarro,163 H. A. Neal,88P. Y. Nechaeva,95T. J. Neep,83A. Negri,120a,120bG. Negri,30M. Negrini,20aS. Nektarijevic,49A. Nelson,164 T. K. Nelson,144S. Nemecek,126P. Nemethy,109A. A. Nepomuceno,24aM. Nessi,30,ffM. S. Neubauer,166M. Neumann,176 A. Neusiedl,82R. M. Neves,109P. Nevski,25F. M. Newcomer,121P. R. Newman,18D. H. Nguyen,6V. Nguyen Thi Hong,137 R. B. Nickerson,119R. Nicolaidou,137B. Nicquevert,30J. Nielsen,138N. Nikiforou,35A. Nikiforov,16V. Nikolaenko,129,ee I. Nikolic-Audit,79K. Nikolics,49K. Nikolopoulos,18P. Nilsson,8Y. Ninomiya,156A. Nisati,133aR. Nisius,100T. Nobe,158 L. Nodulman,6 M. Nomachi,117I. Nomidis,155S. Norberg,112M. Nordberg,30J. Novakova,128M. Nozaki,65L. Nozka,114 K. Ntekas,10A.-E. Nuncio-Quiroz,21G. Nunes Hanninger,87T. Nunnemann,99E. Nurse,77B. J. O’Brien,46F. O’grady,7 D. C. O’Neil,143V. O’Shea,53L. B. Oakes,99F. G. Oakham,29,gH. Oberlack,100 J. Ocariz,79A. Ochi,66 M. I. Ochoa,77

S. Oda,69 S. Odaka,65 H. Ogren,60A. Oh,83S. H. Oh,45C. C. Ohm,30 T. Ohshima,102W. Okamura,117H. Okawa,25 Y. Okumura,31 T. Okuyama,156 A. Olariu,26a A. G. Olchevski,64S. A. Olivares Pino,46M. Oliveira,125a,jD. Oliveira Damazio,25E. Oliver Garcia,168D. Olivito,121 A. Olszewski,39J. Olszowska,39A. Onofre,125a,gg P. U. E. Onyisi,31,hh C. J. Oram,160aM. J. Oreglia,31Y. Oren,154 D. Orestano,135a,135bN. Orlando,72a,72bC. Oropeza Barrera,53 R. S. Orr,159 B. Osculati,50a,50bR. Ospanov,121G. Otero y Garzon,27H. Otono,69M. Ouchrif,136dE. A. Ouellette,170F. Ould-Saada,118

A. Ouraou,137K. P. Oussoren,106 Q. Ouyang,33a A. Ovcharova,15M. Owen,83S. Owen,140V. E. Ozcan,19a N. Ozturk,8 K. Pachal,119A. Pacheco Pages,12C. Padilla Aranda,12S. Pagan Griso,15E. Paganis,140C. Pahl,100F. Paige,25P. Pais,85 K. Pajchel,118G. Palacino,160bS. Palestini,30D. Pallin,34A. Palma,125aJ. D. Palmer,18Y. B. Pan,174E. Panagiotopoulou,10

J. G. Panduro Vazquez,76P. Pani,106 N. Panikashvili,88S. Panitkin,25D. Pantea,26a T. D. Papadopoulou,10 K. Papageorgiou,155,rA. Paramonov,6 D. Paredes Hernandez,34 M. A. Parker,28F. Parodi,50a,50bJ. A. Parsons,35 U. Parzefall,48S. Pashapour,54E. Pasqualucci,133aS. Passaggio,50a A. Passeri,135aF. Pastore,135a,135b,a F. Pastore,76 G. Pásztor,49,ii S. Pataraia,176 N. D. Patel,151 J. R. Pater,83S. Patricelli,103a,103bT. Pauly,30J. Pearce,170M. Pedersen,118 S. Pedraza Lopez,168M. I. Pedraza Morales,174S. V. Peleganchuk,108D. Pelikan,167H. Peng,33bB. Penning,31A. Penson,35 J. Penwell,60D. V. Perepelitsa,35T. Perez Cavalcanti,42E. Perez Codina,160aM. T. Pérez García-Estañ,168V. Perez Reale,35 L. Perini,90a,90b H. Pernegger,30R. Perrino,72a V. D. Peshekhonov,64K. Peters,30R. F. Y. Peters,54,jj B. A. Petersen,30 J. Petersen,30T. C. Petersen,36E. Petit,5A. Petridis,147a,147bC. Petridou,155E. Petrolo,133aF. Petrucci,135a,135bM. Petteni,143 R. Pezoa,32bP. W. Phillips,130G. Piacquadio,144E. Pianori,171A. Picazio,49E. Piccaro,75M. Piccinini,20a,20bS. M. Piec,42 R. Piegaia,27D. T. Pignotti,110 J. E. Pilcher,31A. D. Pilkington,77J. Pina,125a,eM. Pinamonti,165a,165c,kkA. Pinder,119 J. L. Pinfold,3A. Pingel,36B. Pinto,125aC. Pizio,90a,90bM.-A. Pleier,25V. Pleskot,128E. Plotnikova,64P. Plucinski,147a,147b

S. Poddar,58a F. Podlyski,34R. Poettgen,82L. Poggioli,116D. Pohl,21 M. Pohl,49G. Polesello,120aA. Policicchio,37a,37b R. Polifka,159A. Polini,20a C. S. Pollard,45 V. Polychronakos,25D. Pomeroy,23K. Pommès,30L. Pontecorvo,133a B. G. Pope,89G. A. Popeneciu,26bD. S. Popovic,13aA. Poppleton,30X. Portell Bueso,12G. E. Pospelov,100S. Pospisil,127 K. Potamianos,15I. N. Potrap,64C. J. Potter,150C. T. Potter,115G. Poulard,30J. Poveda,60V. Pozdnyakov,64R. Prabhu,77

P. Pralavorio,84A. Pranko,15S. Prasad,30R. Pravahan,8 S. Prell,63D. Price,60J. Price,73L. E. Price,6 D. Prieur,124 M. Primavera,72a M. Proissl,46K. Prokofiev,109F. Prokoshin,32bE. Protopapadaki,137 S. Protopopescu,25J. Proudfoot,6 X. Prudent,44M. Przybycien,38aH. Przysiezniak,5S. Psoroulas,21E. Ptacek,115E. Pueschel,85D. Puldon,149M. Purohit,25,ll

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V. Radescu,42P. Radloff,115F. Ragusa,90a,90bG. Rahal,179S. Rajagopalan,25M. Rammensee,48M. Rammes,142A. S. Randle-Conde,40C. Rangel-Smith,79K. Rao,164F. Rauscher,99 T. C. Rave,48T. Ravenscroft,53M. Raymond,30A. L. Read,118

D. M. Rebuzzi,120a,120bA. Redelbach,175G. Redlinger,25R. Reece,121K. Reeves,41A. Reinsch,115 I. Reisinger,43 M. Relich,164C. Rembser,30Z. L. Ren,152A. Renaud,116M. Rescigno,133aS. Resconi,90a B. Resende,137P. Reznicek,99 R. Rezvani,94R. Richter,100E. Richter-Was,38bM. Ridel,79P. Rieck,16M. Rijssenbeek,149A. Rimoldi,120a,120bL. Rinaldi,20a R. R. Rios,40E. Ritsch,61 I. Riu,12G. Rivoltella,90a,90b F. Rizatdinova,113 E. Rizvi,75 S. H. Robertson,86,lA. Robichaud-Veronneau,119D. Robinson,28J. E. M. Robinson,83A. Robson,53J. G. Rocha de Lima,107C. Roda,123a,123bD. Roda Dos Santos,126L. Rodrigues,30A. Roe,54S. Roe,30O. Røhne,118S. Rolli,162A. Romaniouk,97M. Romano,20a,20bG. Romeo,27

E. Romero Adam,168N. Rompotis,139L. Roos,79E. Ros,168S. Rosati,133aK. Rosbach,49 A. Rose,150M. Rose,76 P. L. Rosendahl,14O. Rosenthal,142V. Rossetti,12E. Rossi,103a,103bL. P. Rossi,50a R. Rosten,139M. Rotaru,26aI. Roth,173

J. Rothberg,139 D. Rousseau,116 C. R. Royon,137 A. Rozanov,84Y. Rozen,153X. Ruan,146cF. Rubbo,12I. Rubinskiy,42 V. I. Rud,98C. Rudolph,44M. S. Rudolph,159 F. Rühr,7A. Ruiz-Martinez,63L. Rumyantsev,64 Z. Rurikova,48 N. A. Rusakovich,64 A. Ruschke,99J. P. Rutherfoord,7 N. Ruthmann,48P. Ruzicka,126Y. F. Ryabov,122 M. Rybar,128 G. Rybkin,116N. C. Ryder,119 A. F. Saavedra,151 A. Saddique,3 I. Sadeh,154H-W.Sadrozinski,138 R. Sadykov,64F. Safai Tehrani,133aH. Sakamoto,156Y. Sakurai,172G. Salamanna,75A. Salamon,134aM. Saleem,112 D. Salek,106D. Salihagic,100 A. Salnikov,144J. Salt,168B. M. Salvachua Ferrando,6D. Salvatore,37a,37bF. Salvatore,150A. Salvucci,105A. Salzburger,30

D. Sampsonidis,155 A. Sanchez,103a,103b J. Sánchez,168V. Sanchez Martinez,168H. Sandaker,14H. G. Sander,82 M. P. Sanders,99M. Sandhoff,176 T. Sandoval,28C. Sandoval,163R. Sandstroem,100 D. P. C. Sankey,130A. Sansoni,47 C. Santoni,34R. Santonico,134a,134b H. Santos,125aI. Santoyo Castillo,150 K. Sapp,124A. Sapronov,64J. G. Saraiva,125a E. Sarkisyan-Grinbaum,8 B. Sarrazin,21G. Sartisohn,176O. Sasaki,65Y. Sasaki,156N. Sasao,67 I. Satsounkevitch,91 G. Sauvage,5,a E. Sauvan,5 J. B. Sauvan,116 P. Savard,159,gV. Savinov,124D. O. Savu,30C. Sawyer,119L. Sawyer,78,n

D. H. Saxon,53 J. Saxon,121 C. Sbarra,20a A. Sbrizzi,3 T. Scanlon,30D. A. Scannicchio,164M. Scarcella,151 J. Schaarschmidt,116P. Schacht,100D. Schaefer,121A. Schaelicke,46S. Schaepe,21S. Schaetzel,58bU. Schäfer,82 A. C. Schaffer,116D. Schaile,99R. D. Schamberger,149V. Scharf,58aV. A. Schegelsky,122D. Scheirich,88M. Schernau,164

M. I. Scherzer,35C. Schiavi,50a,50bJ. Schieck,99C. Schillo,48M. Schioppa,37a,37bS. Schlenker,30E. Schmidt,48 K. Schmieden,30C. Schmitt,82 C. Schmitt,99S. Schmitt,58b B. Schneider,17Y. J. Schnellbach,73U. Schnoor,44 L. Schoeffel,137 A. Schoening,58b B. D. Schoenrock,89A. L. S. Schorlemmer,54M. Schott,82D. Schouten,160a J. Schovancova,25M. Schram,86S. Schramm,159M. Schreyer,175C. Schroeder,82N. Schroer,58cN. Schuh,82 M. J. Schultens,21H.-C. Schultz-Coulon,58a H. Schulz,16M. Schumacher,48B. A. Schumm,138P. Schune,137 A. Schwartzman,144P. Schwegler,100P. Schwemling,137 R. Schwienhorst,89 J. Schwindling,137T. Schwindt,21 M. Schwoerer,5F. G. Sciacca,17E. Scifo,116G. Sciolla,23W. G. Scott,130F. Scutti,21J. Searcy,88G. Sedov,42E. Sedykh,122

S. C. Seidel,104A. Seiden,138F. Seifert,44J. M. Seixas,24aG. Sekhniaidze,103aS. J. Sekula,40K. E. Selbach,46 D. M. Seliverstov,122G. Sellers,73M. Seman,145bN. Semprini-Cesari,20a,20bC. Serfon,30L. Serin,116L. Serkin,54T. Serre,84

R. Seuster,160aH. Severini,112 F. Sforza,100 A. Sfyrla,30E. Shabalina,54 M. Shamim,115L. Y. Shan,33a J. T. Shank,22 Q. T. Shao,87M. Shapiro,15P. B. Shatalov,96K. Shaw,165a,165cP. Sherwood,77S. Shimizu,66M. Shimojima,101T. Shin,56 M. Shiyakova,64A. Shmeleva,95M. J. Shochet,31D. Short,119S. Shrestha,63E. Shulga,97M. A. Shupe,7S. Shushkevich,42 P. Sicho,126D. Sidorov,113A. Sidoti,133aF. Siegert,48D. Sijacki,13aO. Silbert,173J. Silva,125aY. Silver,154D. Silverstein,144 S. B. Silverstein,147aV. Simak,127O. Simard,5L. Simic,13aS. Simion,116E. Simioni,82B. Simmons,77R. Simoniello,90a,90b

M. Simonyan,36P. Sinervo,159 N. B. Sinev,115 V. Sipica,142 G. Siragusa,175 A. Sircar,78A. N. Sisakyan,64,a S. Y. Sivoklokov,98J. Sjölin,147a,147bT. B. Sjursen,14L. A. Skinnari,15H. P. Skottowe,57K. Y. Skovpen,108 P. Skubic,112

M. Slater,18T. Slavicek,127K. Sliwa,162V. Smakhtin,173B. H. Smart,46L. Smestad,118S. Y. Smirnov,97Y. Smirnov,97 L. N. Smirnova,98,mm O. Smirnova,80K. M. Smith,53M. Smizanska,71K. Smolek,127 A. A. Snesarev,95G. Snidero,75 J. Snow,112S. Snyder,25R. Sobie,170,lF. Socher,44J. Sodomka,127A. Soffer,154D. A. Soh,152,yC. A. Solans,30M. Solar,127

J. Solc,127E. Y. Soldatov,97U. Soldevila,168 E. Solfaroli Camillocci,133a,133bA. A. Solodkov,129 O. V. Solovyanov,129 V. Solovyev,122 N. Soni,1 A. Sood,15V. Sopko,127B. Sopko,127 M. Sosebee,8 R. Soualah,165a,165c P. Soueid,94 A. M. Soukharev,108D. South,42S. Spagnolo,72a,72bF. Spanò,76W. R. Spearman,57R. Spighi,20aG. Spigo,30M. Spousta,128,

nn

T. Spreitzer,159 B. Spurlock,8 R. D. St. Denis,53J. Stahlman,121 R. Stamen,58a E. Stanecka,39R. W. Stanek,6 C. Stanescu,135aM. Stanescu-Bellu,42M. M. Stanitzki,42S. Stapnes,118 E. A. Starchenko,129 J. Stark,55P. Staroba,126 P. Starovoitov,42R. Staszewski,39P. Stavina,145a,a G. Steele,53P. Steinbach,44P. Steinberg,25I. Stekl,127 B. Stelzer,143 H. J. Stelzer,89O. Stelzer-Chilton,160aH. Stenzel,52S. Stern,100 G. A. Stewart,30J. A. Stillings,21M. C. Stockton,86

M. Stoebe,86K. Stoerig,48G. Stoicea,26a S. Stonjek,100A. R. Stradling,8A. Straessner,44J. Strandberg,148 S. Strandberg,147a,147bA. Strandlie,118E. Strauss,144M. Strauss,112 P. Strizenec,145b R. Ströhmer,175D. M. Strom,115

R. Stroynowski,40 S. A. Stucci,17B. Stugu,14I. Stumer,25,a J. Stupak,149P. Sturm,176N. A. Styles,42D. Su,144 H. S. Subramania,3R. Subramaniam,78A. Succurro,12Y. Sugaya,117C. Suhr,107M. Suk,127V. V. Sulin,95S. Sultansoy,4c T. Sumida,67X. Sun,55J. E. Sundermann,48K. Suruliz,140G. Susinno,37a,37bM. R. Sutton,150Y. Suzuki,65M. Svatos,126

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S. Swedish,169M. Swiatlowski,144 I. Sykora,145aT. Sykora,128 D. Ta,89K. Tackmann,42J. Taenzer,159 A. Taffard,164 R. Tafirout,160aN. Taiblum,154Y. Takahashi,102H. Takai,25R. Takashima,68H. Takeda,66T. Takeshita,141Y. Takubo,65 M. Talby,84A. A. Talyshev,108,iJ. Y. C. Tam,175M. C. Tamsett,78,ooK. G. Tan,87J. Tanaka,156R. Tanaka,116S. Tanaka,132 S. Tanaka,65A. J. Tanasijczuk,143K. Tani,66N. Tannoury,84S. Tapprogge,82S. Tarem,153F. Tarrade,29G. F. Tartarelli,90a P. Tas,128M. Tasevsky,126T. Tashiro,67E. Tassi,37a,37bA. Tavares Delgado,125aY. Tayalati,136dC. Taylor,77F. E. Taylor,93 G. N. Taylor,87W. Taylor,160bF. A. Teischinger,30M. Teixeira Dias Castanheira,75P. Teixeira-Dias,76K. K. Temming,48 H. Ten Kate,30P. K. Teng,152S. Terada,65K. Terashi,156J. Terron,81S. Terzo,100M. Testa,47R. J. Teuscher,159,lJ. Therhaag,21

T. Theveneaux-Pelzer,34 S. Thoma,48J. P. Thomas,18E. N. Thompson,35P. D. Thompson,18P. D. Thompson,159 A. S. Thompson,53L. A. Thomsen,36E. Thomson,121 M. Thomson,28W. M. Thong,87R. P. Thun,88,a F. Tian,35 M. J. Tibbetts,15T. Tic,126 V. O. Tikhomirov,95,ppY. A. Tikhonov,108,iS. Timoshenko,97E. Tiouchichine,84 P. Tipton,177 S. Tisserant,84T. Todorov,5S. Todorova-Nova,128B. Toggerson,164J. Tojo,69S. Tokár,145aK. Tokushuku,65K. Tollefson,89 L. Tomlinson,83M. Tomoto,102L. Tompkins,31K. Toms,104A. Tonoyan,14N. D. Topilin,64E. Torrence,115H. Torres,143 E. Torró Pastor,168 J. Toth,84,ii F. Touchard,84D. R. Tovey,140H. L. Tran,116 T. Trefzger,175L. Tremblet,30A. Tricoli,30

I. M. Trigger,160a S. Trincaz-Duvoid,79M. F. Tripiana,70N. Triplett,25 W. Trischuk,159 B. Trocmé,55C. Troncon,90a M. Trottier-McDonald,143 M. Trovatelli,135a,135bP. True,89M. Trzebinski,39A. Trzupek,39C. Tsarouchas,30J-L.Tseng,119 P. V. Tsiareshka,91D. Tsionou,137G. Tsipolitis,10N. Tsirintanis,9S. Tsiskaridze,12V. Tsiskaridze,48E. G. Tskhadadze,51a I. I. Tsukerman,96V. Tsulaia,15J.-W. Tsung,21S. Tsuno,65D. Tsybychev,149A. Tua,140A. Tudorache,26aV. Tudorache,26a J. M. Tuggle,31A. N. Tuna,121S. A. Tupputi,20a,20bS. Turchikhin,98,mm D. Turecek,127I. Turk Cakir,4dR. Turra,90a,90b

P. M. Tuts,35A. Tykhonov,74M. Tylmad,147a,147bM. Tyndel,130 K. Uchida,21I. Ueda,156 R. Ueno,29M. Ughetto,84 M. Ugland,14 M. Uhlenbrock,21F. Ukegawa,161 G. Unal,30A. Undrus,25 G. Unel,164 F. C. Ungaro,48Y. Unno,65 D. Urbaniec,35P. Urquijo,21G. Usai,8A. Usanova,61L. Vacavant,84V. Vacek,127B. Vachon,86S. Vahsen,15N. Valencic,106 S. Valentinetti,20a,20bA. Valero,168L. Valery,34S. Valkar,128E. Valladolid Gallego,168S. Vallecorsa,49J. A. Valls Ferrer,168 R. Van Berg,121P. C. Van Der Deijl,106R. van der Geer,106H. van der Graaf,106R. Van Der Leeuw,106D. van der Ster,30

N. van Eldik,30 P. van Gemmeren,6 J. Van Nieuwkoop,143 I. van Vulpen,106M. C. van Woerden,30M. Vanadia,100 W. Vandelli,30A. Vaniachine,6 P. Vankov,42 F. Vannucci,79R. Vari,133a E. W. Varnes,7 T. Varol,85D. Varouchas,15 A. Vartapetian,8K. E. Varvell,151V. I. Vassilakopoulos,56F. Vazeille,34T. Vazquez Schroeder,54J. Veatch,7F. Veloso,125a S. Veneziano,133aA. Ventura,72a,72bD. Ventura,85M. Venturi,48N. Venturi,159V. Vercesi,120aM. Verducci,139W. Verkerke,106 J. C. Vermeulen,106 A. Vest,44 M. C. Vetterli,143,g O. Viazlo,80I. Vichou,166T. Vickey,146c,qqO. E. Vickey Boeriu,146c G. H. A. Viehhauser,119 S. Viel,169R. Vigne,30 M. Villa,20a,20bM. Villaplana Perez,168 E. Vilucchi,47 M. G. Vincter,29 V. B. Vinogradov,64J. Virzi,15 O. Vitells,173M. Viti,42I. Vivarelli,150F. Vives Vaque,3 S. Vlachos,10D. Vladoiu,99 M. Vlasak,127A. Vogel,21P. Vokac,127G. Volpi,47M. Volpi,87G. Volpini,90aH. von der Schmitt,100H. von Radziewski,48

E. von Toerne,21V. Vorobel,128 M. Vos,168 R. Voss,30J. H. Vossebeld,73N. Vranjes,137 M. Vranjes Milosavljevic,106 V. Vrba,126M. Vreeswijk,106 T. Vu Anh,48R. Vuillermet,30I. Vukotic,31Z. Vykydal,127 W. Wagner,176 P. Wagner,21 S. Wahrmund,44J. Wakabayashi,102 S. Walch,88J. Walder,71R. Walker,99W. Walkowiak,142 R. Wall,177 P. Waller,73 B. Walsh,177C. Wang,45H. Wang,174H. Wang,40J. Wang,152J. Wang,33aK. Wang,86R. Wang,104S. M. Wang,152T. Wang,21 X. Wang,177A. Warburton,86C. P. Ward,28D. R. Wardrope,77M. Warsinsky,48A. Washbrook,46C. Wasicki,42I. Watanabe,66 P. M. Watkins,18A. T. Watson,18I. J. Watson,151M. F. Watson,18G. Watts,139S. Watts,83A. T. Waugh,151B. M. Waugh,77 S. Webb,83M. S. Weber,17S. W. Weber,175J. S. Webster,31A. R. Weidberg,119P. Weigell,100J. Weingarten,54C. Weiser,48 H. Weits,106P. S. Wells,30T. Wenaus,25D. Wendland,16Z. Weng,152,yT. Wengler,30S. Wenig,30N. Wermes,21M. Werner,48

P. Werner,30M. Wessels,58a J. Wetter,162K. Whalen,29 A. White,8 M. J. White,1 R. White,32b S. White,123a,123b D. Whiteson,164 D. Whittington,60D. Wicke,176F. J. Wickens,130W. Wiedenmann,174M. Wielers,80,fP. Wienemann,21

C. Wiglesworth,36L. A. M. Wiik-Fuchs,21P. A. Wijeratne,77A. Wildauer,100M. A. Wildt,42,rrI. Wilhelm,128 H. G. Wilkens,30J. Z. Will,99E. Williams,35H. H. Williams,121S. Williams,28W. Willis,35,aS. Willocq,85J. A. Wilson,18

A. Wilson,88I. Wingerter-Seez,5 S. Winkelmann,48F. Winklmeier,115 M. Wittgen,144T. Wittig,43J. Wittkowski,99 S. J. Wollstadt,82 M. W. Wolter,39H. Wolters,125a,jW. C. Wong,41 B. K. Wosiek,39J. Wotschack,30 M. J. Woudstra,83 K. W. Wozniak,39K. Wraight,53M. Wright,53S. L. Wu,174X. Wu,49Y. Wu,88E. Wulf,35T. R. Wyatt,83B. M. Wynne,46 S. Xella,36M. Xiao,137C. Xu,33b,dd D. Xu,33aL. Xu,33b,ssB. Yabsley,151S. Yacoob,146b,tt M. Yamada,65H. Yamaguchi,156 Y. Yamaguchi,156A. Yamamoto,65K. Yamamoto,63S. Yamamoto,156T. Yamamura,156T. Yamanaka,156K. Yamauchi,102 Y. Yamazaki,66Z. Yan,22H. Yang,33e H. Yang,174 U. K. Yang,83 Y. Yang,110Z. Yang,147a,147bS. Yanush,92L. Yao,33a Y. Yasu,65E. Yatsenko,42K. H. Yau Wong,21J. Ye,40S. Ye,25A. L. Yen,57E. Yildirim,42M. Yilmaz,4bR. Yoosoofmiya,124

K. Yorita,172 R. Yoshida,6 K. Yoshihara,156C. Young,144 C. J. S. Young,119 S. Youssef,22D. R. Yu,15J. Yu,8 J. Yu,113 L. Yuan,66A. Yurkewicz,107B. Zabinski,39R. Zaidan,62A. M. Zaitsev,129,eeA. Zaman,149S. Zambito,23L. Zanello,133a,133b D. Zanzi,100A. Zaytsev,25C. Zeitnitz,176M. Zeman,127A. Zemla,39O. Zenin,129T.Ženiš,145aD. Zerwas,116G. Zevi della

Porta,57D. Zhang,88H. Zhang,89J. Zhang,6L. Zhang,152 X. Zhang,33d Z. Zhang,116Z. Zhao,33b A. Zhemchugov,64 J. Zhong,119B. Zhou,88L. Zhou,35N. Zhou,164 C. G. Zhu,33d H. Zhu,42J. Zhu,88Y. Zhu,33bX. Zhuang,33aA. Zibell,99

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D. Zieminska,60N. I. Zimin,64C. Zimmermann,82R. Zimmermann,21S. Zimmermann,21S. Zimmermann,48 Z. Zinonos,123a,123b M. Ziolkowski,142 R. Zitoun,5 L. Živković,35G. Zobernig,174A. Zoccoli,20a,20b M. zur Nedden,16

G. Zurzolo,103a,103bV. Zutshi,107and L. Zwalinski30a ((ATLAS Collaboration))

1

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

2Physics Department, SUNY Albany, Albany, New York, USA 3

Department of Physics, University of Alberta, Edmonton, Alberta Canada

4aDepartment of Physics, Ankara University, Ankara, Turkey 4b

Department of Physics, Gazi University, Ankara, Turkey

4cDivision of Physics, TOBB University of Economicsand Technology, Ankara, Turkey 4d

Turkish Atomic Energy Authority, Ankara, Turkey

5LAPP, CNRS/IN2P3 and Université de Savoie, Annecy-le-Vieux, France 6

High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois, USA

7Department of Physics, University of Arizona, Tucson, Arizona, USA 8

Department of Physics, The University of Texas at Arlington, Arlington, Texas, USA

9Physics Department, University of Athens, Athens, Greece 10

Physics Department, National Technical University of Athens, Zografou, Greece

11Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan 12

Institut de Física d’Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona, Barcelona, Spain

13aInstitute of Physics, University of Belgrade, Belgrade, Serbia 13b

Vinca Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia

14Department for Physics and Technology, University of Bergen, Bergen, Norway 15

Physics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley, California, USA

16Department of Physics, Humboldt University, Berlin, Germany 17

Albert 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 19a

Department of Physics, Bogazici University, Istanbul, Turkey

19bDepartment of Physics, Dogus University, Istanbul, Turkey 19c

Department of Physics Engineering, GaziantepUniversity, Gaziantep, Turkey

20aINFN Sezione di Bologna, Italy 20b

Dipartimento di Fisica e Astronomia, Università di Bologna, Bologna, Italy

21Physikalisches Institut, University of Bonn, Bonn, Germany 22

Department of Physics, Boston University, Boston, Massachusetts, USA

23Department of Physics, Brandeis University, Waltham, Massachusetts, USA 24a

Universidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, Brazil

24bFederal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil 24c

Federal University of Sao Joao del Rei (UFSJ), Sao Joao del Rei, Brazil

24dInstituto de Fisica, Universidade de SaoPaulo, Sao Paulo, Brazil 25

Physics Department, Brookhaven National Laboratory, Upton, New York, USA

26aNational Institute of Physics and NuclearEngineering, Bucharest, Romania 26b

National Institute for Research and Development of Isotopic and Molecular Technologies, Physics Department, Cluj Napoca, Romania

26c

University Politehnica Bucharest, Bucharest, Romania

26dWest University in Timisoara, Timisoara, Romania 27

Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina

28Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom 29

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

30CERN, Geneva, Switzerland 31

Enrico Fermi Institute, University of Chicago, Chicago, Illinois, USA

32aDepartamento de Física, Pontificia Universidad Católica de Chile, Santiago, Chile 32b

Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile

33aInstitute of High Energy Physics, Chinese Academy of Sciences, Beijing, China 33b

Department of Modern Physics, University of Science and Technology of China, Anhui, China

33cDepartment of Physics, Nanjing University, Jiangsu, China 33d

School of Physics, Shandong University, Shandong, China

33ePhysics Department, Shanghai Jiao Tong University, Shanghai, China 34

Laboratoire de Physique Corpusculaire, Clermont Université and Université Blaise Pascal and CNRS/IN2P3, Clermont-Ferrand, France

Figure

FIG. 1. Pair production of WIMPs ( χ ¯χ) in proton–proton collisions at the LHC via an unknown intermediate state, with initial-state radiation of a W boson.
FIG. 2 (color online). Distribution of m jet in the data and for the predicted background in the top control region (CR) with one muon, one large-radius jet, two narrow jets, and at least one b tag, and E miss T &gt; 250 GeV, which includes a W peak and a
Figure 4 shows the exclusion regions at 90% confidence level (C.L.) in the M  vs m χ plane for various operators, where M  need not be the same for the different operators.
FIG. 5 (color online). Limits on χ–nucleon cross sections as a function of m χ at 90% C.L

References

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