Электронный каталог

Статья

Aad, G.
Measurement of the H *> *g*g and H *> ZZ&sup(* )*> 4l Cross-Sections in pp Collisions at *%s=13.6 TeV 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, 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.Vasyukov, I.Yeletskikh, A.Zhemchugov, N.I.Zimine, N.Huseynov, Y.Kulchitsky, [ATLAS Collab.] // The European Physical Journal C [Electronic resource]. – 2024. – Vol. 84, No. 1. – P. 78. – URL: https://doi.org/10.1140/epjc/s10052-023-12130-5. – Bibliogr.: 121.

The inclusive Higgs boson production cross- section is measured in the di-photon and the Z Z ∗ → 4l decay channels using 31.4 and 29.0 fb−1 of pp collision data respectively, collected with the ATLAS detector at a centre- of-mass energy of √s = 13.6 TeV. To reduce the model dependence, the measurement in each channel is restricted to a particle-level phase space that closely matches the chan- nel’s detector-level kinematic selection, and it is corrected for detector effects. These measured fiducial cross-sections are σfid,γ γ = 76+14 −13 fb, and σfid,4l = 2.80 ± 0.74 fb, in agreement with the corresponding Standard Model predic- tions of 67.6 ± 3.7 fb and 3.67 ± 0.19 fb. Assuming Standard Model acceptances and branching fractions for the two chan- nels, the fiducial measurements are extrapolated to the full phase space yielding total cross-sections of σ ( pp → H ) = 67+12 −11 pb and 46 ± 12 pb at 13.6 TeV from the di-photon and Z Z ∗ → 4l measurements respectively. The two measure- ments are combined into a total cross-section measurement of σ ( pp → H ) = 58.2 ±8.7 pb, to be compared with the Stan- dard Model prediction of σ ( pp → H )SM = 59.9 ± 2.6 pb.



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