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Статья

Aad, G.
Search for Charged Higgs Bosons Produced in Top-Quark Decays or in Association with Top Quarks and Decaying via H&sup(*() *> *t&sup(*()*n&sub(*t) in 13 TeV pp Collisions with the ATLAS Detector / G.Aad, F.Ahmadov, I.N.Aleksandrov, V.A.Bednyakov, I.R.Boyko, G.A.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, Y.Kulchitsky, E.Ladygin, V.Lyubushkin, T.Lyubushkina, S.Malyukov, M.Mineev, E.Plotnikova, I.N.Potrap, N.A.Rusakovich, M.Shiyakova, A.Soloshenko, A.Tropina, P.V.Tsiareshka, T.Turtuvshin, A.Vasyukov, I.Yeletskikh, A.Zhemchugov, N.I.Zimine, [ATLAS Collab.]. – Text: electronic // Physical Review D. – 2025. – Vol. 111, No. 7. – P. 072006. – URL: https://doi.org/10.1103/PhysRevD.111.072006. – Bibliogr.: 92.

Charged Higgs bosons produced either in top-quark decays or in association with a top quark, subsequently decaying via 𝐻&sup(± )→𝜏&sup(±)⁢𝜈&sub(𝜏), are searched for in 140  fb*−*1 of proton-proton collision data at √𝑠 =13  TeV recorded with the ATLAS detector. Depending on whether the top quark is produced together with the 𝐻&sup(±) decays hadronically or semileptonically, the search targets 𝜏 +jets or 𝜏 +lepton final states, in both cases with a 𝜏-lepton decaying into a neutrino and hadrons. No significant excess over the Standard Model background expectation is observed. For the mass range of 80 ≤𝑚&sub(𝐻±) ≤3000  GeV, upper limits at 95% confidence level are set on the production cross section of the charged Higgs boson times the branching fraction ℬ⁡(𝐻&sup(±) →𝜏&sup(±)⁢𝜈&sub(𝜏)) in the range 4.5 pb–0.4 fb. In the mass range 80–160 GeV, assuming the Standard Model cross section for 𝑡⁢𝑡^- production, this corresponds to upper limits between 0.27% and 0.02% on ℬ⁡(𝑡 →𝑏⁢𝐻&sup(±)) ×ℬ⁡(𝐻&sup(±) →𝜏&sup(±)⁢𝜈&sub(𝜏)).



ОИЯИ = ОИЯИ (JINR)2025
Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
Спец.(статьи,препринты) = С 346.6е2 - Промежуточные бозоны