Электронный каталог

Статья

Aad, G.
Search for a Light Charged Higgs Boson in t*>H&sup(*))b Decays, with H&sup(*)) *>cs, in 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, T.Turtuvshin, A.Tropina, A.Vasyukov, I.Yeletskikh, A.Zhemchugov, N.I.Zimine, Y.Kulchitsky, [ATLAS Collab.] // The European Physical Journal C [Electronic resource]. – 2025. – Vol. 85, No. 2. – P. 153. – URL: https://doi.org/10.1140/epjc/s10052-024-13715-4. – Bibliogr.: 127.

A search for a light charged Higgs boson pro- duced in decays of the top quark, t → H&sup(±)b with H&sup(±)→ cs, is presented. This search targets the production of top-quark pairs t^¯t → W bH&sup(±)b, with W →lν (l= e, μ), result- ing in a lepton-plus-jets final state characterised by an iso- lated electron or muon and at least four jets. The search exploits b-quark and c-quark identification techniques as well as multivariate methods to suppress the dominant t^¯t back- ground. The data analysed correspond to 140fb&sup(−1) of pp collisions at √s = 13 TeV recorded with the ATLAS detec- tor at the LHC between 2015 and 2018. Observed (expected) 95% confidence-level upper limits on the branching fraction B(t → H&sup(±)b), assuming B(t → Wb) + B(t → H ±(→ cs)b) = 1.0, are set between 0.066% (0.077%) and 3.6% (2.3%) for a charged Higgs boson with a mass between 60 and 168 GeV.



ОИЯИ = ОИЯИ (JINR)2025