Электронный каталог

Статья

Aad, G.
Search for Decays of the Higgs Boson into a Pair of Pseudoscalar Particles Decaying into bb^-*t*+*t*- Using pp Collisions at *%s=13 TeV with the ATLAS Detector / G.Aad, F.Ahmadov, I.N.Aleksandrov, V.A.Bednyakov, I.R.Boyko, G.Chelkov, A.Cheplakov, M.V.Chizhov, D.V.Dedovich, M.Demichev, A.R.Didenko, M.I.Gostkin, S.N.Karpov, Z.M.Karpova, U.Kruchonak, V.Kukhtin, E.Ladygin, V.Lyubushkin, T.Lyubushkina, S.Malyukov, M.Mineev, E.Plotnikova, I.N.Potrap, N.A.Rusakovich, M.Shiyakova, A.Soloshenko, A.Vasyukov, A.Tropina, T.Turtuvshin, I.Yeletskikh, A.Zhemchugov, N.I.Zimine, Y.Kulchitsky, [ATLAS Collab.] // Physical Review D [Electronic resource]. – 2024. – Vol. 110, No. 5. – P. 052013. – URL: https://doi.org/10.1103/PhysRevD.110.052013. – Bibliogr.: 141.

This paper presents a search for exotic decays of the Higgs boson into a pair of new pseudoscalar particles, H → aa, where one pseudoscalar decays into a b-quark pair and the other decays into a τ-lepton pair, in the mass range 12 ≤ m&sub(a) ≤ 60 GeV. The analysis uses pp collision data at *%s=13 TeV collected with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 140 fb*−*1. No significant excess above the Standard Model (SM) prediction is observed. Assuming the SM Higgs boson production cross section, the search sets upper limits at 95% confidence level on the branching ratio of Higgs bosons decaying into bb^-*t*+*t*-, B(H*>aa*>bb^-*t*+*t*-), between 2.2% and 3.9% depending on the pseudoscalar mass.



ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
Спец.(статьи,препринты) = С 346.6е2 - Промежуточные бозоны