Searches for new physics phenomena with jet final states in the ATLAS detector

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(1)Searches for new physics phenomena with jet final states in the ATLAS detector Brottmann Hansen, Eva. 2020. Document Version: Publisher's PDF, also known as Version of record Link to publication. Citation for published version (APA): Brottmann Hansen, E. (2020). Searches for new physics phenomena with jet final states in the ATLAS detector. Lund University.. Total number of authors: 1 Creative Commons License: Unspecified. General rights Unless other specific re-use rights are stated the following general rights apply: Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Read more about Creative commons licenses: https://creativecommons.org/licenses/ Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.. L UNDUNI VERS I TY PO Box117 22100L und +46462220000. Download date: 05. Oct. 2021.

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(14) KFU BOE γ

(15) KFU CBMBODF ôòò .VMUJKFU CBMBODF ôòó /PNJOBM DPNCJOBUJPO PG JO TJUV pT DBMJCSBUJPOT ôòô "MUFSOBUJWF mUCBTFE JO TJUV DPNCJOBUJPO JJ. . . . . . . . . . . öò öó öô öõ öõ ÷ï.

(16) $0/5&/54 ôòõ. 4ZTUFNBUJD VODFSUBJOUJFT . . . . . . . . . . . . ÷ð. ôó. *O TJUV NBTT DBMJCSBUJPO MBSHF3 KFUT ôóð $BMPSJNFUFSUPUSBDLFS SBUJP Rtrk ôóñ 'PSXBSE 'PMEJOH ôóò $PNCJOBUJPO PG *O TJUV NBTT DBMJCSBUJPOT. ÷ò ÷ò ÷ó ÷ô. ôô. +FU FOFSHZ SFTPMVUJPO ÷õ. õ +FU 4VCTUSVDUVSF BOE 5BHHJOH. øð. õð. +FU TVCTUSVDUVSF WBSJBCMFT øð õðð 1SPOHMJLF WBSJBCMFT øñ õðñ .VMUJQMJDJUZMJLF WBSJBCMFT øó. õñ. CKFU UBHHJOH øô. *** 4FBSDIFT GPS /FX 1IZTJDT JO )BESPOJD 'JOBM 4UBUFT. øø. ö. ðïò. ÷. 1BJSQSPEVDUJPO PG 3QBSJUZ 7JPMBUJOH 4UPQ 4RVBSLT öð. "OBMZTJT TUSBUFHZ ðïó. öñ. %BUB BOE QSFTFMFDUJPOT ðïõ öñð %BUB TBNQMF ðïõ öññ 1SFTFMFDUJPOT ðïõ. öò. 4JNVMBUFE TBNQMFT ðïö öòð 4JHOBM TJNVMBUJPO ðïö öòñ #BDLHSPVOE TJNVMBUJPO ðï÷. öó. &WFOU SFDPOTUSVDUJPO ðï÷. öô. 4JHOBM SFHJPOT ðï÷. öõ. #BDLHSPVOE FTUJNBUJPO ððñ. öö. 4ZTUFNBUJD VODFSUBJOUJFT ööð .VMUJKFU CBDLHSPVOE VODFSUBJOUJFT ööñ 5PQQBJS CBDLHSPVOE VODFSUBJOUJFT ööò 4JHOBM VODFSUBJOUJFT . ö÷. 3FTVMUT ððö. öø. 0VUMPPL ðñï. %BSL +FU 3FTPOBODFT. . . . . . . . . . . . . . . . . ððó ððô ððô ððö. ðñô. ÷ð. #FODINBSL TJHOBM NPEFMT ðñõ. ÷ñ. "OBMZTJT TUSBUFHZ ðñø ÷ñð &WFOU TFMFDUJPO TUSBUFHZ ðñø ÷ññ 3FTPOBODF mOEJOH TUSBUFHZ ðòð. ÷ò. %BUB BOE QSFTFMFDUJPOT ðòñ. JJJ.

(17) $0/5&/54 ÷òð ÷òñ ÷òò ÷òó. ø. %BUB TBNQMF %BUB RVBMJUZ DVUT .POUF $BSMP RVBMJUZ DVUT 5PQPMPHJDBM TFMFDUJPO . . . . . . . . . . . . . . . . . . . . . . ðòñ ðòò ðòò ðòò. ÷ó. 4JNVMBUFE EBUB TBNQMFT ðòô ÷óð 4JHOBM TJNVMBUJPO ðòõ ÷óñ #BDLHSPVOE TJNVMBUJPO ðòõ. ÷ô. &WFOU SFDPOTUSVDUJPO ðòõ. ÷õ. 4JHOBM SFHJPO ÷õð $IBMMFOHF PG ntrk CBTFE FWFOU TFMFDUJPO ÷õñ 'JYFEFċDJFODZ SFHSFTTJPO ÷õò $IPJDF PG ϵ ÷õó %BUBESJWFO TBOJUZ DIFDL . . . . . . . . . . . . . . . ðòö ðò÷ ðóï ðóó ðóô. ÷ö. #BDLHSPVOE FTUJNBUJPO ÷öð 3FTPMVUJPOCBTFE m++ CJOOJOH ÷öñ 8JMLT MJLFMJIPPESBUJP UFTU ÷öò 4JHOBM JOKFDUJPO UFTU ÷öó 4QVSJPVT TJHOBM UFTU . . . . . . . . . . . . . . . ðóõ ðóø ðóø ðôï ðôï. ÷÷. 4ZTUFNBUJD VODFSUBJOUJFT ðôð ÷÷ð #BDLHSPVOE VODFSUBJOUJFT ðôð ÷÷ñ 4JHOBM VODFSUBJOUJFT ðôñ. ÷ø. 0VUMPPL ðôò ÷øð +FU SFDPOTUSVDUJPO ðôò ÷øñ .VMUJWBSJBUF BOBMZTJT ðôõ. $PODMVEJOH 3FNBSLT. . . . . . ðôø. 3FGFSFODFT. ðõð. JW.

(18) 1BSU *. *OUSPEVDUJPOT. ð.

(19)

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(21) $)"15&3 ð */530%6$5*0/ 50 5)& 5)&4*4 CF VOEFSTUPPE BT DPNQPTJUF PG KVTU B IBOEGVM PG FWFO TNBMMFS GSBDUJPOBMMZ DIBSHFE FOUJUJFT DBMMFE RVBSLT ɨ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mD EJSFDUJPOT +FUT DPVME POMZ CF TJNQMZ FYQMBJOFE BT B RVBSL HFUUJOH LJDLFE PVU PG UIF QSPUPO XJUI B IJHI USBOTWFSTF NPNFOUVN UP UIFO TXBSN JUTFMG XJUI IBESPOT nZJOH PĊ JO UIF TBNF EJSFDUJPO ɨF WJTJCMF BQQFBSBODF PG KFUT JO IBESPO DPMMJTJPOT EVSJOH UIF MBUF ðøöïT DPOWJODFE UIF MBTU SFNBJOJOH TLFQUJDT 0VS LOPXMFEHF PG QBSUJDMF QIZTJDT UPEBZ DBO CF DPOEFOTFE UP B TJOHMF RVBOUVN mFME UIFPSZ DBMMFE UIF 4UBOEBSE .PEFM *U JT CVJMU PO UIF TBNF QSJODJQMFT BT RVBOUVN FMFDUSPEZOBNJDT BOE JU TUBOET FWFO NPSF USJVNQIBOU &YQMBJOJOH OPU POMZ UIF EZOBNJDT PG UIF QBSUJDMFT LOPXO BU UIF UJNF JU XBT GPSNVMBUFE UIF 4UBOEBSE .PEFM BMTP QSFEJDUFE UIF FYJTUFODF PG OFX QBSUJDMFT XIJDI XFSF MBUFS EJTDPWFSFE ɨF MBTU QSFEJDUFE QBSUJDMF UP CF EJTDPWFSFE XBT UIF )JHHT CPTPO JO ñïðñ ɨF EJTDPWFSZ VMUJNBUFMZ EFNPOTUSBUFE UIF QSFEJDUJWF QPXFS PG UIF 4UBOEBSE .PEFM CVU PODF BHBJO B GFX FYDFQUJPOT UP UIF UBMF PG USJVNQIT SFNBJO 0OF PG UIF NPSF CFXJMEFSJOH FYDFQUJPOT JT UIF SFQFBUFE PCTFSWBUJPO UIBU UIFSF JT NVDI NPSF HSBWJUBUJPOBM NBTT JO UIF VOJWFSTF UIBO UIF MVNJOPVT NBUUFS JOEJDBUFT ɨF 4UBOEBSE .PEFM EPFT OPU QSPWJEF B WJBCMF FYQMBOBUJPO GPS UIJT VOLOPXO TVCTUBODF TP XF TJNQMZ DBMM JU EBSL NBUUFS &WFO HSBWJUBUJPO JT OPU BDDPVOUFE GPS CZ UIF 4UBOEBSE .PEFM $MFBSMZ XF BSF TUJMM TIPSU PG B UIFPSZ PG FWFSZUIJOH "T JO UIF ðøôïT PVS IPQF UPEBZ JT UIBU BO FYQBOTJPO PG UIF RVBOUVN mFME UIFPSZ XF IBWF XJMM VOSBWFM UIF SFNBJOJOH NZTUFSJFT 1FSIBQT TPNF FYQMBOBUJPOT XJMM PODF BHBJO CF GPVOE JO ZFU BOPUIFS MBZFS PG TUSVDUVSF IJEJOH XJUIJO UIPVHIUUPCF GVOEBNFOUBM DPOTUJUVFOUT 1FSIBQT UIF EJTDPWFSZ PG B OFX QBSUJDMF XJMM CF UIF UFMMUBMF PG B NJTTJOH TZNNFUSZ ɨF BQQSPBDI GPS UFTUJOH OFX UIFPSJFT JT TUJMM UP DPMMJEF QBSUJDMFT XJUI IJHI FOFSHZ BOE TUVEZ XIBU DPNFT PVU PG UIF DPMMJTJPO )FJTFOCFSHT VODFSUBJOUZ QSJODJQMF UFBDIFT VT UIBU UIF TNBMMFS B UIJOH XF XBOU UP QSPCF UIF IJHIFS UIF FOFSHZ OFFEFE ɨF BWBJMBCMF DPMMJTJPO FOFSHZ BMTP TFUT UIF MJNJU PG IPX IFBWZ QBSUJDMFT DBO CF DSFBUFE EVF UP &JOTUFJOT GBNPVT NBTTFOFSHZ FRVJWBMFODF 'PS UIFTF SFBTPOT QBSUJDMF QIZTJDT JT BMTP DBMMFE IJHI FOFSHZ QIZTJDT ɨF -BSHF )BESPO $PMMJEFS -)$ BU $&3/ NBSLT UIF IJHIFTU FOFSHZ GSPOUJFS PG QBSUJDMF QIZTJDT TP GBS *U XBT BU UIF -)$ UIBU UIF )JHHT CPTPO XBT mOBMMZ EJTDPWFSFE "U UIF TUBSU PG UIF -)$ JU XBT UIF FYQFDUBUJPO BOE IPQF PG NPTU QIZTJDJTUT UIBU B QBSUJDVMBSMZ BQQFBMJOH FYUFOTJPO UP UIF 4UBOEBSE .PEFM DBMMFE TVQFSTZNNFUSZ XPVME TPPO CF EJTDPWFSFE 4VQFS TZNNFUSZ 464: IBT UIF QPUFOUJBM UP TPMWF NBOZ PG UIF QSPCMFNT QPTFE CZ UIF 4UBOEBSE ó.

(22) $)"15&3 ð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ɨF TUSBUFHZ JT OPX UP OBSSPX EPXO UIF TFBSDI mFME PG QPTTJCMF OFX QIZTJDT UIFPSJFT TUBSUJOH XJUI UIF CFTU NPUJWBUFE POFT 8JUI BO BQQBSFOU MBDL PG FYQFSJNFOUBM DMVFT XF BSF HVJEFE CZ DPOTUSBJOUT GSPN DPTNPMPHZ BOE BTUSPOPNZ BOE UIF IJTUPSJDBMMZ GPVOEFE CFMJFG UIBU UIF MBXT PG OBUVSF BSF BFTUIFUJD BOE TZNNFUSJD. ðñ 0WFSWJFX PG UIF EJTTFSUBUJPO ɨF XPSL QSFTFOUFE JO UIJT UIFTJT JT DFOUFSFE BSPVOE KFUT /PU POMZ BSF KFUT BCVOEBOU BOE TUSJLJOH TJHOBUVSFT JO QSPUPO DPMMJTJPOT UIFZ BSF BMTP QSFEJDUFE BT UIF mOBM TUBUF JO B XFBMUI PG NPEFMT GPS QIZTJDT CFZPOE UIF 4UBOEBSE .PEFM ɨF UIFTJT HJWFT EFUBJMFE BDDPVOU PG UIF QSJODJQMFT PG NFBTVSJOH BOE DBMJCSBUJOH KFUT ɨJT JT GPMMPXFE CZ UIF SFQPSU PG UXP BOBMZTFT XIJDI CPUI BJN UP MPPL GPS OFX QIZTJDT QIFOPNFOB CFZPOE UIF 4UBOEBSE .PEFM VTJOH FWFOUT XJUI KFUT JO UIF mOBM TUBUF ɨF BOBMZTFE QSPUPOQSPUPO DPMMJTJPO EBUB JT DPMMFDUFE XJUI UIF "5-"4 FYQFSJNFOU BU UIF -)$ ɨF mSTU BOBMZTJT UFTUT B TVQFSTZNNFUSJD FYUFOTJPO UP UIF 4UBOEBSE .PEFM XIFSF UIF MJHIUFTU TVQFSTZNNFUSJD QBSUJDMF EFDBZT QSPNQUMZ UP B QBJS PG RVBSLT UISPVHI BO 3QBSJUZ WJPMBUJOH DPVQMJOH ɨF TFDPOE BOBMZTJT MPPLT GPS TJHOT PG OFX QIZTJDT JO UIF MFTT DPOWFOUJPOBM GPSN PG B IJEEFO TFDUPS UIBU JT XFBLMZ DPVQMFE UP UIF 4UBOEBSE .PEFM QBSUJDMF TFDUPS ɨF IJEEFO TFDUPS JT DIBSBDUFSJTFE CZ B DPOmOJOH HBVHF JOUFSBDUJPO XIJDI DPVME HJWFT SJTF UP KFUT XJUI EJTUJOHVJTIBCMF TVCTUSVDUVSF ɨF UIFTJT JT EJWJEFE JOUP UISFF QBSUT t 1BSU * ɨF mSTU QBSU JOUSPEVDFT UIF UIFPSFUJDBM BOE FYQFSJNFOUBM DPODFQUT BOE UPPMT OFDFTTBSZ UP HJWF B DPNQSFIFOTJWF FYQMBOBUJPO PG UIF QSFTFOUFE TFBSDIFT 8F TUBSU JO $IBQUFS ñ XJUI UIF UIFPSFUJDBM GPVOEBUJPO SFHBSEJOH CPUI UIF 4UBOEBSE .PEFM BOE UIF QPTTJCMF FYUFOTJPOT XIJDI UIF UXP BOBMZTFT BJN UP UFTU $IBQUFS ò HJWFT BO PWFSWJFX PG UIF FYQFSJNFOUBM TFUVQ XIFSF UIF BOBMZ[FE EBUB JT SFDPSEFE t 1BSU ** ɨF TFDPOE QBSU SFWPMWFT BSPVOE UIF UPQJD PG IPX KFUT BSF NFBTVSFE *O $IBQUFS ó XF XJMM TF IPX KFUT BSF EFmOFE BOE SFDPOTUSVDUFE $IBQUFS ô SFWJFXT UIF DBMJCSBUJPO PG UIF NFBTVSFE KFUT XJUI B QBSUJDVMBS FNQIBTJT PG UIF EBUBESJWFO JO TJUV. ô.

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(33) $)"15&3 ñ 5)& 5)&03&5*$"- '06/%"5*0/ XJUI TPDBMMFE TFB RVBSLT 4FB RVBSLT BOE HMVPOT BQQFBS CZ RVBOUVN nVDUVBUJPOT JOTJEF UIF QSPUPOT 8IFO UXP QSPUPOT DPMMJEF BU 5F7 TDBMF FOFSHJFT JU JT JO GBDU UIF JOEJWJEVBM RVBSLT BOE HMVPOT UIF QBSUPOT UIBU BSF JOUFSBDUJOH 1BSUPO EJTUSJCVUJPO GVODUJPOT 1%'T. EFTDSJCF UIF JOJUJBM TUBUF PG UIF QSPUPO JO UFSNT PG UIFTF QBSUPOT 4JODF UIF QSPUPO JT B DPNQPTJUF PCKFDU UIF QSPUPO NPNFOUVN JT JO GBDU DBSSJFE CZ CPUI WBMFODF RVBSLT TFB RVBSLT BOE HMVPOT %VF UP BTZNQUPUJD GSFFEPN UIF QBSUPO NPUJPO JT VOSFTUSJDUFE JO BMM EJSFDUJPOT JOTJEF UIF QSPUPO CVU UIF OFU FĊFDU HJWFT PWFSBMM QSPUPO NPNFOUVN ɨF 1%' EFTDSJCFT IPX UIF PWFSBMM NPNFOUVN JT EJWJEFE CFUXFFO UIF WBSJPVT RVBSLT BOE HMVPOT XJUIJO UIF QSPUPO ɨF 1%'T DBO OPU CF DPNQVUFE GSPN mSTU QSJODJQMFT CVU BSF UZQJDBMMZ PCUBJOFE CZ mUUJOH B MBSHF OVNCFS PG NFBTVSFNFOUT GSPN FYQFSJNFOUT TVDI BT EFFQ JOFMBTUJD TDBUUFSJOH PG FMFD USPOT PĊ QSPUPOT 'JHVSF ñò TIPXT UIF MPOHJUVEJOBM NPNFOUVN GSBDUJPO x UJNFT UIF 1%' f (x, Q) BT B GVODUJPO PG x NFBTVSFE BU NPNFOUVN USBOTGFS TDBMF PG Q = 2 (F7 BOE Q = 1000 (F7 ɨF EJTUSJCVUJPOT TIPX UIBU BU JG B QBSUPO DBSSJFT NPSF UIBO ñïǷ PG UIF MPOHJUVEJOBM NPNFOUVN JU JT NPTU MJLFMZ B WBMFODF RVBSL u PS d PS B HMVPO )PXFWFS UIF WBMFODF RVBSLT CFDPNF MFTT EPNJOBOU BU IJHI x XIFO UIF QSPUPO JT QSPCFE BU MBSHFS NPNFOUVN USBOTGFS Q eva. nnpdf23lo_2 PDFs. 10 1. 10−1 10−2 −3 10. 10−2. x. 10−1. 102 10 1 10−1 10−2 −3 10. 1. B. x c (x,Q) x s (x,Q) x u(x,Q) x d(x,Q) xg(x,Q) xd(x,Q) xu(x,Q) xs(x,Q) xc(x,Q) Q = 1.00e+03 GeV. Generated with APFEL 2.7.1 Web. 103. xf(x,Q). xf(x,Q). 102. x c (x,Q) x s (x,Q) x u(x,Q) x d(x,Q) xg(x,Q) xd(x,Q) xu(x,Q) xs(x,Q) xc(x,Q) Q = 2.00e+00 GeV. Generated with APFEL 2.7.1 Web. 103. 10−2. x. 10−1. 1. C. 'JHVSF 1BSUPO EJTUSJCVUJPO GVODUJPOT TIPXJOH UIF GSBDUJPOBM EJTUSJCVUJPO PG NPNFOUVN CF UXFFO BOUJ RVBSLT PG UIF UISFF MJHIUFTU nBWPVST BOE HMVPOT *O B UIF 1%'T BSF FWBMVBUFE BU Q = 2 (F7 BOE JO C UIFZ BSF FWBMVBUFE BU Q = 1000 (F7 ɨF QMPUT BSF HFOFSBUFE XJUI "1'& 8FC <> VTJOH UIF 1%' TFU //1%'-0 <>. ñññ ɧF IBSE TDBUUFSJOH 1FSUVSCBUJWF DBMDVMBUJPOT BOE 'FZONBO EJBHSBNT 0ODF UIF JOUJBM TUBUF PG UIF QSPUPOT JT EFTDSJCFE XF DBO TUBSU UP DPNQVUF UIF QSPCBCJMJUJFT GPS XIBU NBZ DPNF PVU PG UIF IBSETDBUUFSJOH JOUFSBDUJPO PG UXP QBSUPOT JO UIF QSPUPO QSPUPO DPMMJTJPO ɨJT JT BMTP BO BQQSPQSJBUF UJNF UP JOUSPEVDF TPNF NBUIFNBUJDBM UPPMT ðõ.

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