Measurement of the ZZ production cross section and Z - GT l(+)l(-)l (+)l (-) branching fraction in pp collisions at root s=13TeV
2016
Authors
Khachatryan, V.Adžić, Petar
Ćirković, Predrag
Devetak, Damir
Đorđević, Miloš
Milošević, Jovan
Milošević, Jovan
Reković, Vladimir
Milenović, Predrag
CMS Collaboration (ukupan broj autora: 2270)
Article (Published version)
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Four-lepton production in proton-proton collisions, pp - GT (Z/gamma*)(Z/gamma*)- GT 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 - GT 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 LT m(l+l-) m (l+l-) LT 120GeV. The Z boson branching fraction to four leptons is measured to be B(Z - GT 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 LT m(l+)l-l+l LT 100GeVand dilepton mass m(l+l-) GT 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 ope...n access article under the CC BY license
Keywords:
CMS / Physics / ElectroweakSource:
Physics Letters B, 2016, 763, 280-303
DOI: 10.1016/j.physletb.2016.10.054
ISSN: 0370-2693; 1873-2445
WoS: 000390126600041
Scopus: 2-s2.0-85035073151
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VinčaTY - JOUR AU - Khachatryan, V. AU - Adžić, Petar AU - Ćirković, Predrag AU - Devetak, Damir AU - Đorđević, Miloš AU - Milošević, Jovan AU - Milošević, Jovan AU - Reković, Vladimir AU - Milenović, Predrag PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1340 AB - Four-lepton production in proton-proton collisions, pp - GT (Z/gamma*)(Z/gamma*)- GT 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 - GT 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 LT m(l+l-) m (l+l-) LT 120GeV. The Z boson branching fraction to four leptons is measured to be B(Z - GT 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 LT m(l+)l-l+l LT 100GeVand dilepton mass m(l+l-) GT 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 T2 - Physics Letters B T1 - Measurement of the ZZ production cross section and Z - GT l(+)l(-)l (+)l (-) branching fraction in pp collisions at root s=13TeV VL - 763 SP - 280 EP - 303 DO - 10.1016/j.physletb.2016.10.054 ER -
@article{ author = "Khachatryan, V. and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Đorđević, Miloš and Milošević, Jovan and Milošević, Jovan and Reković, Vladimir and Milenović, Predrag", year = "2016", abstract = "Four-lepton production in proton-proton collisions, pp - GT (Z/gamma*)(Z/gamma*)- GT 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 - GT 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 LT m(l+l-) m (l+l-) LT 120GeV. The Z boson branching fraction to four leptons is measured to be B(Z - GT 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 LT m(l+)l-l+l LT 100GeVand dilepton mass m(l+l-) GT 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", journal = "Physics Letters B", title = "Measurement of the ZZ production cross section and Z - GT l(+)l(-)l (+)l (-) branching fraction in pp collisions at root s=13TeV", volume = "763", pages = "280-303", doi = "10.1016/j.physletb.2016.10.054" }
Khachatryan, V., Adžić, P., Ćirković, P., Devetak, D., Đorđević, M., Milošević, J., Milošević, J., Reković, V.,& Milenović, P.. (2016). Measurement of the ZZ production cross section and Z - GT l(+)l(-)l (+)l (-) branching fraction in pp collisions at root s=13TeV. in Physics Letters B, 763, 280-303. https://doi.org/10.1016/j.physletb.2016.10.054
Khachatryan V, Adžić P, Ćirković P, Devetak D, Đorđević M, Milošević J, Milošević J, Reković V, Milenović P. Measurement of the ZZ production cross section and Z - GT l(+)l(-)l (+)l (-) branching fraction in pp collisions at root s=13TeV. in Physics Letters B. 2016;763:280-303. doi:10.1016/j.physletb.2016.10.054 .
Khachatryan, V., Adžić, Petar, Ćirković, Predrag, Devetak, Damir, Đorđević, Miloš, Milošević, Jovan, Milošević, Jovan, Reković, Vladimir, Milenović, Predrag, "Measurement of the ZZ production cross section and Z - GT l(+)l(-)l (+)l (-) branching fraction in pp collisions at root s=13TeV" in Physics Letters B, 763 (2016):280-303, https://doi.org/10.1016/j.physletb.2016.10.054 . .