ZZ→ℓ.sup.+./sup.ℓ.sup.−./sup.ℓ′.sup.+./sup.ℓ′.sup.−./sup. cross-section measurements and search for anomalous triple gauge couplings in 13 TeV pp collisions with the ATLAS detector

0500716 - FZÚ 2019 RIV US eng J - Článek v odborném periodiku
Aaboud, M. - Aad, G. - Abbott, B. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jakoubek, Tomáš - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Kůs, Vlastimil - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … celkem 2879 autorů
ZZ→ℓ⁺ℓ⁻ℓ′⁺ℓ′⁻ cross-section measurements and search for anomalous triple gauge couplings in 13 TeV pp collisions with the ATLAS detector.
Physical Review D. Roč. 97, č. 3 (2018), s. 1-39, č. článku 032005. ISSN 2470-0010. E-ISSN 2470-0029
Grant CEP: GA MŠMT(CZ) LTT17018
Institucionální podpora: RVO:68378271
Klíčová slova: ATLAS * CERN LHC Coll * experimental results * acceptance * electron: pair production * muon: pair production * 13000 GeV-cms
Obor OECD: Particles and field physics
Impakt faktor: 4.368, rok: 2018

Measurements of ZZ production in the ℓ+ℓ-ℓ′+ℓ′- channel in proton–proton collisions at 13 TeV center-of-mass energy at the Large Hadron Collider are presented. The data correspond to 36.1  fb-1 of collisions collected by the ATLAS experiment in 2015 and 2016. Here ℓ and ℓ′ stand for electrons or muons. Integrated and differential ZZ→ℓ+ℓ-ℓ′+ℓ′- cross sections with Z→ℓ+ℓ- candidate masses in the range of 66 GeV to 116 GeV are measured in a fiducial phase space corresponding to the detector acceptance and corrected for detector effects. The differential cross sections are presented in bins of twenty observables, including several that describe the jet activity. The integrated cross section is also extrapolated to a total phase space and to all standard model decays of Z bosons with mass between 66 GeV and 116 GeV, resulting in a value of 17.3±0.9[±0.6(stat)±0.5(syst)±0.6(lumi)]  pb.
Trvalý link: http://hdl.handle.net/11104/0292758