0565718 - FZÚ 2023 RIV US 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 2886 autorů
Search for exotic decays of the Higgs boson into b b¯ and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector.
Journal of High Energy Physics. Roč. 2022, č. 1 (2022), č. článku 063. ISSN 1029-8479. E-ISSN 1029-8479
Výzkumná infrastruktura: CERN-CZ II - 90104; e-INFRA CZ - 90140
Institucionální podpora: RVO:68378271
Klíčová slova: Higgs particle: rare decay * dimension: 3 * ATLAS
Obor OECD: Particles and field physics
Impakt faktor: 5.4, rok: 2022 ; AIS: 1.036, rok: 2022
Způsob publikování: Open access
DOI: https://doi.org/10.1007/JHEP01(2022)063

A search for the exotic decay of the Higgs boson (H) into a bb‾b resonance plus missing transverse momentum is described. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb−1−1 of pp collisions at ss ​ = 13 TeV. The search targets events from ZH production in an NMSSM scenario where H → χ∼20χ∼10χ∼​20​χ∼​10​, with χ∼20χ∼​20​→aχ∼10aχ∼​10​, where a is a light pseudoscalar Higgs boson and χ∼1,20χ∼​1,20​ are the two lightest neutralinos. The decay of the a boson into a pair of b-quarks results in a peak in the dijet invariant mass distribution. The final-state signature consists of two leptons, two or more jets, at least one of which is identified as originating from a b-quark, and missing transverse momentum. Observations are consistent with Standard Model expectations and upper limits are set on the product of cross section times branching ratio for a three-dimensional scan of the masses of the χ∼20χ∼​20​, χ∼10χ∼​10​ and a boson.
Trvalý link: https://hdl.handle.net/11104/0337234