Measurement of the Azimuthal Anisotropy of Υ(1S) and Υ(2S) Mesons in PbPb Collisions at √sNN = 5.02 TeV
Physics Letters B 2021
Viesturs Veckalns

The second-order Fourier coefficients (v2) characterizing the azimuthal distributions of [Formula presented] and [Formula presented] mesons produced in PbPb collisions at sNN=5.02TeV are studied. The [Formula presented] mesons are reconstructed in their dimuon decay channel, as measured by the CMS detector. The collected data set corresponds to an integrated luminosity of 1.7nb−1. The scalar product method is used to extract the v2 coefficients of the azimuthal distributions. Results are reported for the rapidity range |y|<2.4, in the transverse momentum interval 0<pT<50GeV/c, and in three centrality ranges of 10–30%, 30–50% and 50–90%. In contrast to the J/ψ mesons, the measured v2 values for the [Formula presented] mesons are found to be consistent with zero.


Atslēgas vārdi
5.02 TeV | CMS | Flow | Heavy ion | PbPb | Upsilon
DOI
10.1016/j.physletb.2021.136385
Hipersaite
https://www.sciencedirect.com/science/article/pii/S0370269321003257?via%3Dihub

The CMS Collaboration, A.M.Sirunyan, A.Tumasyan, V.Veckalns ... [et al.] Measurement of the Azimuthal Anisotropy of Υ(1S) and Υ(2S) Mesons in PbPb Collisions at √sNN = 5.02 TeV. Physics Letters B, 2021, Vol. 819, Article number 136385. ISSN 0370-2693. Available from: doi:10.1016/j.physletb.2021.136385

Publikācijas valoda
English (en)
RTU Zinātniskā bibliotēka.
E-pasts: uzzinas@rtu.lv; Tālr: +371 28399196