Электронный каталог

Статья

Chekhovsky, V.
Evidence for Similar Collectivity of High Transverse-Momentum Particles in p-Pb and Pb-Pb Collisions / V.Chekhovsky, S.Afanasiev, V.Alexakhin, D.Budkouski, I.Golutvin, I.Gorbunov, V.Karjavine, O.Kodolova, V.Korenkov, N.V.Krasnikov, A.Lanev, A.Malakhov, V.Matveev, A.Nikitenko, V.Palichik, V.Perelygin, S.Polikarpov, M.Savina, V.Shalaev, S.Shmatov, S.Shulha, V.Smirnov, O.Teryaev, N.Voytishin, B.S.Yuldashev, A.Zarubin, I.Zhizhin, Z.Tsamalaidze, [CMS Collab.]. – Text : electronic // Physical Review Letters. – 2025. – Vol. 135, No. 7. – P. 071903. – URL: https://doi.org/10.1103/t5kp-vsv7. – Bibliogr.: 71.

Charged hadron elliptic anisotropies (𝑣&sub(2)) are presented over a wide transverse momentum (𝑝&sub(T)) range for proton-lead (𝑝⁢Pb) and lead-lead (PbPb) collisions at nucleon-nucleon center-of-mass energies of 8.16 and 5.02 TeV, respectively. The data were recorded by the CMS experiment and correspond to integrated luminosities of 186 and 0.607  nb&sub(−1) for the 𝑝⁢Pb and PbPb systems, respectively. A four-particle cumulant analysis is performed using subevents separated in pseudorapidity to effectively suppress noncollective effects. At high 𝑝&sub(T) (𝑝&sub(T)>8  GeV), significant positive 𝑣&sub(2) values that are similar between 𝑝⁢Pb and PbPb collisions at comparable charged particle multiplicities are observed. This observation suggests a common origin for the multiparticle collectivity for high-𝑝&sub(T) particles in the two systems.



ОИЯИ = ОИЯИ (JINR)2025