Measurement of the ZZ production cross section and Z ?l+l-l?+l?- branching fraction in pp collisions at ?s=13TeV

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dc.authoridHong, Byungsik/0000-0002-2259-9929
dc.authoridRahatlou, Shahram/0000-0001-9794-3360
dc.authoridIvanov, Andrew/0000-0002-9270-5643
dc.authoridPfeiffer, Andreas/0000-0001-5328-448X
dc.authoridShi, Xin/0000-0001-9910-9345
dc.authoridBansal, Sunil/0000-0003-1992-0336
dc.authoridCasarsa, Massimo/0000-0002-1353-8964
dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAsilar, E.
dc.contributor.authorBergauer, T.
dc.contributor.authorThe CMS Collaboration
dc.date.accessioned2025-03-07T20:17:55Z
dc.date.available2025-03-07T20:17:55Z
dc.date.issued2016
dc.departmentÇağ Üniversitesi
dc.description.abstractFour-lepton production in proton-proton collisions, pp -> (Z/gamma*)(Z/gamma*)-> l(+)l(-)l '(+)l '(-), where l,l '(-) = e or mu, is studied at a center-of-mass energy of 13 TeV with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 2.6fb(-1). The ZZ production cross section, sigma(pp -> ZZ) = 14.6(-1.8)(+1.9)(stat)(-0.3)(+0.5) (syst) +/-0.2 (theo) +/-0.4 (lumi) pb, is measured for events with two opposite-sign, sameflavor lepton pairs produced in the mass region 60 < m(l+l-) m (l'+l'-) < 120GeV. The Z boson branching fraction to four leptons is measured to be B(Z -> l(+)l(-)l '(+)l '(-)) = 4.9(-0.7)(+0.8)(stat)(-0.2)(+0.3)(syst)(-0.1)(+0.2)(theo) +/- 0.1 (lumi) x10(-6) for the four-lepton invariant mass in the range 80 < m(l+)l-l'+l' < 100GeVand dilepton mass m(l+l-) > 4GeVfor all opposite-sign, same-flavor lepton pairs. The results are in agreement with standard model predictions. (C) 2016 The Author. Published by Elsevier B. V. This is an open access article under the CC BY license
dc.description.sponsorshipDirect For Mathematical & Physical Scien; Division Of Physics [1151640, 1401984] Funding Source: National Science Foundation; Division Of Physics; Direct For Mathematical & Physical Scien [1506168, 1506130, 1211067, 1606321, 1120138, 1508869] Funding Source: National Science Foundation; STFC [ST/N000242/1] Funding Source: UKRI
dc.identifier.doi10.1016/j.physletb.2016.10.054
dc.identifier.endpage303
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
dc.identifier.scopus2-s2.0-85035073151
dc.identifier.scopusqualityQ1
dc.identifier.startpage280
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2016.10.054
dc.identifier.urihttps://hdl.handle.net/20.500.12507/3075
dc.identifier.volume763
dc.identifier.wosWOS:000390126600041
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofPhysics Letters B
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20241226
dc.subjectCMS
dc.subjectPhysics
dc.subjectElectroweak
dc.titleMeasurement of the ZZ production cross section and Z ?l+l-l?+l?- branching fraction in pp collisions at ?s=13TeV
dc.typeArticle

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