Measurement of the ZZ production cross section and Z →ℓ+ℓ−ℓ′+ℓ′−→ℓ+ℓ−ℓ′+ℓ′− branching fraction in pp collisions at s√s=13 TeV

V. Khachatryan , P. Eerola , Adrian Byszuk , Agnieszka Zagoździńska


Four-lepton production in proton–proton collisions, pp→(Z/γ⁎)(Z/γ⁎)→ℓ+ℓ−ℓ′+ℓ′− , where ℓ,ℓ′=e or μ , 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 2.6 fb −1 . The ZZ production cross section, σ(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, same-flavor lepton pairs produced in the mass region 604 GeV for all opposite-sign, same-flavor lepton pairs. The results are in agreement with standard model predictions.
Collective authorCMS Collaboration
Author V. Khachatryan
V. Khachatryan,,
, P. Eerola
P. Eerola,,
, Adrian Byszuk (FEIT / PE)
Adrian Byszuk,,
- The Institute of Electronic Systems
, Agnieszka Zagoździńska (FEIT / PE)
Agnieszka Zagoździńska,,
- The Institute of Electronic Systems
Total number of authors2269
Journal seriesPhysics Letters B, ISSN 0370-2693
Issue year2016
Publication size in sheets1.15
Keywords in English p p: scattering | p p: colliding beams | Z0: pair production | Z0: leptonic decay | dilepton: mass | Z0: branching ratio: measured | channel cross section: measured | mass spectrum: (2lepton+ 2lepton-) | mass spectrum: (lepton+ lepton-) | CERN LHC Coll | CMS | experimental results | Z0 --> 2lepton+ 2lepton- | 13000 GeV-cms
Languageen angielski
Score (nominal)40
ScoreMinisterial score = 35.0, 05-04-2017, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, 05-04-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 4.807 (2) - 2016=4.327 (5)
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