Observation of electroweak production of two jets in association with an isolated photon and missing transverse momentum, and search for a Higgs boson decaying into invisible particles at 13 TeV with the ATLAS detector

0565755 - FZÚ 2023 RIV DE eng J - Článek v odborném periodiku
Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … celkem 2899 autorů
Observation of electroweak production of two jets in association with an isolated photon and missing transverse momentum, and search for a Higgs boson decaying into invisible particles at 13 TeV with the ATLAS detector.
European Physical Journal C. Roč. 82, č. 2 (2022), č. článku 105. ISSN 1434-6044. E-ISSN 1434-6052
Výzkumná infrastruktura: CERN-CZ II - 90104; e-INFRA CZ - 90140
Institucionální podpora: RVO:68378271
Klíčová slova: transverse momentum: missing-energy * Higgs particle: invisible decay * vector boson: fusion
Obor OECD: Particles and field physics
Impakt faktor: 4.4, rok: 2022
Způsob publikování: Open access

This paper presents a measurement of the electroweak production of two jets in association with a ZγZγ pair, with the Z boson decaying into two neutrinos. It also presents a search for invisible or partially invisible decays of a Higgs boson with a mass of 125 GeVGeV produced through vector-boson fusion with a photon in the final state. These results use data from LHC proton–proton collisions at ss ​ = 13 TeVTeV collected with the ATLAS detector and corresponding to an integrated luminosity of 139 fb−1fb−1. The event signature, shared by all benchmark processes considered for the measurements and searches, is characterized by a significant amount of unbalanced transverse momentum and a photon in the final state, in addition to a pair of forward jets. Electroweak ZγZγ production in association with two jets is observed in this final state with a significance of 5.2 (5.1 expected) standard deviations.
Trvalý link: https://hdl.handle.net/11104/0337264