Электронный каталог

Статья

Aad, G.
Underlying-Event Studies with Strange Hadrons 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, 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, Y.Kulchitsky, [ATLAS Collab.] // The European Physical Journal C [Electronic resource]. – 2024. – Vol. 84, No. 12. – P. 1335. – URL: https://doi.org/10.1140/epjc/s10052-024-13243-1. – Bibliogr.: 56.

Properties of the underlying-event in pp interac- tions are investigated primarily via the strange hadrons K*0&sub(S),*L and *L^-, as reconstructed using the ATLAS detector at the LHC in minimum-bias pp collision data at √s = 13 TeV. The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes K*0&sub(S) → π+π−,*L → π− p and *L^- → π+p^-. These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged- particle jet in the event. None of the hadronisation and underlying-event physics models considered can describe the data over the full kinematic range considered. Events with a leading charged-particle jet in the range of 10 < p T ≤ 40 GeV are studied using the number of prompt charged parti- cles in the transverse region. The ratio N (*L+*L^-)/N (K*0&sub(S)) as a function of the number of such charged particles varies only slightly over this range. This disagrees with the expectations of some of the considered Monte Carlo models.



ОИЯИ = ОИЯИ (JINR)2024