Study of WWγ and WZγ production in pp collisions at √s = 8 TeV and search for anomalous quartic gauge couplings with the ATLAS experiment

0487687 - FZÚ 2018 RIV DE 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 2873 autorů
Study of WWγ and WZγ production in pp collisions at √s = 8 TeV and search for anomalous quartic gauge couplings with the ATLAS experiment.
European Physical Journal C. Roč. 77, č. 9 (2017), s. 1-30, č. článku 646. ISSN 1434-6044. E-ISSN 1434-6052
Institucionální podpora: RVO:68378271
Klíčová slova: ATLAS * CERN LHC Coll * effective field theory * strong coupling * channel cross section * upper limit * experimental results * 8000 GeV-cms
Obor OECD: Particles and field physics
Impakt faktor: 5.172, rok: 2017

This paper presents a study of WWγ and WZγ triboson production using events from proton–proton collisions at a centre-of-mass energy of √s=8TeV recorded with the ATLAS detector at the LHC and corresponding to an integrated luminosity of 20.2 fb−1. The WWγ production cross-section is determined using a final state containing an electron, a muon, a photon, and neutrinos (eνμνγ). Upper limits on the production cross-section of the eνμνγ final state and the WWγ and WZγ final states containing an electron or a muon, two jets, a photon, and a neutrino (eνjjγ or μνjjγ) are also derived. The results are compared to the cross-sections predicted by the Standard Model at next-to-leading order in the strong-coupling constant. In addition, upper limits on the production cross-sections are derived in a fiducial region optimised for a search for new physics beyond the Standard Model.

Trvalý link: http://hdl.handle.net/11104/0282329