Constraints on Higgs boson production with large transverse momentum using H →b b ¯ decays in the ATLAS detector

0562908 - 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 2913 autorů
Constraints on Higgs boson production with large transverse momentum using H →b b ¯ decays in the ATLAS detector.
Physical Review D. Roč. 105, č. 9 (2022), č. článku 092003. ISSN 2470-0010. E-ISSN 2470-0029
Výzkumná infrastruktura: CERN-CZ II - 90104; e-INFRA CZ - 90140
Institucionální podpora: RVO:68378271
Klíčová slova: p p: colliding beams * Higgs particle: hadroproduction * gluon gluon: fusion
Obor OECD: Particles and field physics
Impakt faktor: 5, rok: 2022
Způsob publikování: Open access

This paper reports constraints on Higgs boson production with transverse momentum above 1 TeV. The analyzed data from proton–proton collisions at a center-of-mass energy of 13 TeV were recorded with the ATLAS detector at the Large Hadron Collider from 2015 to 2018 and correspond to an integrated luminosity of 136  fb-1. Higgs bosons decaying into bb¯ are reconstructed as single large-radius jets recoiling against a hadronic system and are identified by the experimental signature of two b-hadron decays. The experimental techniques are validated in the same kinematic regime using the Z→bb¯ process. The 95% confidence-level upper limit on the cross section for Higgs boson production with transverse momentum above 450 GeV is 115 fb, and above 1 TeV it is 9.6 fb. The Standard Model cross section predictions for a Higgs boson with a mass of 125 GeV in the same kinematic regions are 18.4 fb and 0.13 fb, respectively.
Trvalý link: https://hdl.handle.net/11104/0336469