Observation of electroweak W.sup.±./sup.Z boson pair production in association with two jets in pp collisions at √s = 13 TeV with the ATLAS detector

0520513 - FZÚ 2020 RIV NL eng J - Článek v odborném periodiku
Aaboud, M. - Aad, G. - Abbott, B. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Jakoubek, Tomáš - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … celkem 2922 autorů
Observation of electroweak W^±Z boson pair production in association with two jets in pp collisions at √s = 13 TeV with the ATLAS detector.
Physics Letters. B. Roč. 793, June (2019), s. 469-492. ISSN 0370-2693. E-ISSN 1873-2445
Grant CEP: GA MŠMT LM2015058
Institucionální podpora: RVO:68378271
Klíčová slova: ATLAS * CERN LHC Coll * kinematics * electron * final state: ((n)jet 3lepton) * muon * experimental results * 13000 GeV-cms
Obor OECD: Particles and field physics
Impakt faktor: 4.384, rok: 2019
Způsob publikování: Open access

An observation of electroweak W±Z production in association with two jets in proton–proton collisions is presented. The data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016 at a centre-of-mass energy of s=13 TeV are used, corresponding to an integrated luminosity of 36.1fb−1 . Events containing three identified leptons, either electrons or muons, and two jets are selected. The electroweak production of W±Z bosons in association with two jets is measured with an observed significance of 5.3 standard deviations. A fiducial cross-section for electroweak production including interference effects and for a single leptonic decay mode is measured to be σWZjj−EW=0.57−0.13+0.14(stat.)−0.06+0.07(syst.)fb . Total and differential fiducial cross-sections of the sum of W±Zjj electroweak and strong productions for several kinematic observables are also measured.
Trvalý link: http://hdl.handle.net/11104/0305178