Электронный каталог

Статья

Tumasyan, A.
Study of Azimuthal Anisotropy of *U(1S) Mesons in pPb Collisions at *%s&sub(NN) = 8.16 TeV / A.Tumasyan, S.Afanasiev, D.Budkouski, I.Golutvin, I.Gorbunov, V.Karjavine, V.Korenkov, A.Lanev, A.Malakhov, V.Matveev, V.Palichik, V.Perelygin, M.Savina, V.Shalaev, S.Shmatov, S.Shulha, V.Smirnov, O.Teryaev, Z.Tsamalaidze, N.Voytishin, B.S.Yuldashev, A.Zarubin, I.Zhizhin, N.Krasnikov, [CMS Collab.] // Physics Letters B [Electronic resource]. – 2024. – Vol. 850. – P. 138518. – URL: https://doi.org/10.1016/j.physletb.2024.138518. – Bibliogr.: 74.

The azimuthal anisotropy of *U(1S) mesons in high-multiplicity proton-lead collisions is studied using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy of 8.16 TeV. The *U(1S) mesons are reconstructed using their dimuon decay channel. The anisotropy is characterized by the second Fourier harmonic coefficients, found using a two-particle correlation technique, in which the *U(1S) mesons are correlated with charged hadrons. A large pseudorapidity gap is used to suppress short-range correlations. Nonflow contamination from the dijet background is removed using a low-multiplicity subtraction method, and the results are presented as a function of *U(1S) transverse momentum. The azimuthal anisotropies are smaller than those found for charmonia in proton-lead collisions at the same collision energy, but are consistent with values found for *U(1S) mesons in lead-lead interactions at a nucleon-nucleon center-of-mass energy of 5.02 TeV



Спец.(статьи,препринты) = С 343 в - Взаимодействие протонов с ядрами (Z>2). Изобарно- аналоговые состояния
ОИЯИ = ОИЯИ (JINR)2024