Электронный каталог

Статья

Aad, G.
Measurement of the Centrality Dependence of the Dijet Yield in p+Pb Collisions at *%s&sub(NN)=8.16 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, A.Vasyukov, T.Turtuvshin, I.Yeletskikh, A.Zhemchugov, N.I.Zimine, Y.Kulchitsky, [ATLAS Collab.] // Physical Review Letters [Electronic resource]. – 2024. – Vol. 132, No. 10. – P. 102301. – URL: https://doi.org/10.1103/PhysRevLett.132.102301. – Bibliogr.: 47.

ATLAS measured the centrality dependence of the dijet yield using 165 nb−1 of p þ Pb data collected at *%s&sub(NN)= 8.16 TeV in 2016. The event centrality, which reflects the p þ Pb impact parameter, is characterized by the total transverse energy registered in the Pb-going side of the forward calorimeter. The central-to-peripheral ratio of the scaled dijet yields, RCP , is evaluated, and the results are presented as a function of variables that reflect the kinematics of the initial hard parton scattering process. The RCP shows a scaling with the Bjorken x of the parton originating from the proton, x p, while no such trend is observed as a function of xPb . This analysis provides unique input to understanding the role of small proton spatial configurations in p þ Pb collisions by covering parton momentum fractions from the valence region down to x p ∼ 10−3 and xPb ∼ 4 × 10−4.



ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 346 в - Адронные струи