Электронный каталог

Статья

Tumasyan, A.
Measurements of Azimuthal Anisotropy of Nonprompt D*0 Mesons in PbPb Collisions at *%s&sub(NN) = 5.02 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. 138389. – URL: https://doi.org/10.1016/j.physletb.2023.138389. – Bibliogr.: 57.

Measurements of the elliptic (*u&sub(2)) and triangular (*u&sub(3)) azimuthal anisotropy coefficients are presented for D*0 mesons produced in b hadron decays (nonprompt D*0 mesons) in lead-lead collisions at *%𝑠&sub(NN) = 5.02 TeV. The results are compared with previously published charm meson anisotropies measured using prompt D*0 mesons. The data were collected with the CMS detector in 2018 with an integrated luminosity of 0.58 nb*−*1. Azimuthal anisotropy is sensitive to the interactions of quarks with the hot and dense medium created in heavy ion collisions. Comparing results for prompt and nonprompt D*0 mesons can assist in understanding the mass dependence of these interactions. The nonprompt results show lower magnitudes of *u&sub(2) and *u&sub(3) and weaker dependences on the meson transverse momentum and collision centrality than those found for prompt D*0 mesons. The results are in agreement with theoretical predictions that include a mass dependence in the interactions of quarks with the medium



Спец.(статьи,препринты) = С 343 е2 - Взаимодействие релятивистских ядер с ядрами
Спец.(статьи,препринты) = С 346 г - Множественное рождение частиц
ОИЯИ = ОИЯИ (JINR)2024