Электронный каталог

Статья

Aad, G.
Probing the Higgs Boson CP Properties in Vector-Boson Fusion Production in the H *> *t*+*t*- Channel 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, 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 // Journal of High Energy Physics. – 2025. – Vol. 2025, No. 10. – P. 092. – URL: https://doi.org/10.1007/JHEP10(2025)092. – Bibliogr.: 140.

The CP properties of the Higgs boson are studied in the vector-boson fusion production mode. The analysis exploits the decay mode of the Higgs boson into two τ-leptons using 140 fb*−*1 of proton-proton collision data at TeV collected by the ATLAS experiment at the Large Hadron Collider. Results are obtained using the Optimal Observable method. CP-violating interactions between the Higgs boson and electroweak gauge bosons are considered in the effective field theory framework, with the interaction strength described in the HISZ basis by d^- , and in the Warsaw basis by c&sub(HW^-),c&sub(HB^-), and c&sub(HW^-B). No deviations relative to the Standard Model are observed, and limits are obtained on the strength parameters. The d^- parameter is constrained to the interval [−0.012, 0.044] at the 95% confidence level while c&sub(HW^-) is constrained to [−0.24, 0.83], when considering both linear and quadratic effects of physics beyond the Standard Model.



ОИЯИ = ОИЯИ (JINR)2025