Measurements of pp→ZZ production cross sections and constraints on anomalous triple gauge couplings at √s=13TeV; European Physical Journal C; Vol. 81, iss. 3
| Parent link: | European Physical Journal C Vol. 81, iss. 3.— 2021.— [200, 30 p.] |
|---|---|
| Ente Autore: | |
| Altri autori: | , , , , , , |
| Riassunto: | Title screen The production of Z boson pairs in proton-proton (pppp) 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. |
| Lingua: | inglese |
| Pubblicazione: |
2021
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| Soggetti: | |
| Accesso online: | http://earchive.tpu.ru/handle/11683/74923 https://doi.org/10.1140/epjc/s10052-020-08817-8 |
| Natura: | Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668927 |
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| 200 | 1 | |a Measurements of pp→ZZ production cross sections and constraints on anomalous triple gauge couplings at √s=13TeV |f A. M. Sirunyan, A. R. Tumasyan, W. Adam [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 67 tit.] | ||
| 330 | |a The production of Z boson pairs in proton-proton (pppp) 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. | ||
| 461 | |t European Physical Journal C | ||
| 463 | |t Vol. 81, iss. 3 |v [200, 30 p.] |d 2021 | ||
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| 701 | 1 | |a Adam |b W. |g Wolfgang | |
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