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Title: | Measurements of pp→ZZ production cross sections and constraints on anomalous triple gauge couplings at √s = 13TeV |
Authors: | CMS Collaboration Sirunyan, A. M. DUBE, SOURABH KANSAL, B. KOTHEKAR, K. PANDEY, S. RANE, A. RASTOGI, A. SHARMA, SEEMA et al. Dept. of Physics |
Keywords: | Physics 2021-APR-WEEK3 TOC-APR-2021 2021 |
Issue Date: | Mar-2021 |
Publisher: | Springer Nature |
Citation: | European Physical Journal C, 81. |
Abstract: | The production of Z boson pairs in proton–proton (pp) collisions, pp→(Z/γ∗)(Z/γ∗)→2ℓ2ℓ′, where ℓ,ℓ′=e or μ, is studied at a center-of-mass energy of 13TeV with the CMS detector at the CERN LHC. The data sample corresponds to an integrated luminosity of 137fb−1, collected during 2016–2018. The ZZ production cross section, σtot(pp→ZZ)=17.4±0.3(stat)±0.5(syst)±0.4(theo)±0.3(lumi) pb, measured for events with two pairs of opposite-sign, same-flavor leptons produced in the mass region 60<mℓ+ℓ−<120GeV is consistent with standard model predictions. Differential cross sections are also measured and agree with theoretical predictions. The invariant mass distribution of the four-lepton system is used to set limits on anomalous ZZZ and ZZγ couplings. |
URI: | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/5818 https://doi.org/10.1140/epjc/s10052-020-08817-8 |
ISSN: | 1434-6052 |
Appears in Collections: | JOURNAL ARTICLES |
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