The second-order Fourier coefficients (v(2)) characterizing the
azimuthal distributions of Y(1S) and Y(2S) mesons produced in PbPb
collisions at root s(NN) = 5.02 TeV are studied. The Y mesons are
reconstructed in their dimuon decay channel, as measured by the CMS
detector. The collected data set corresponds to an integrated luminosity
of 1.7 nb(-1). The scalar product method is used to extract the v2
coefficients of the azimuthal distributions. Results are reported for
the rapidity range vertical bar y vertical bar < 2.4, in the transverse
momentum interval 0 < pT < 50 GeV/c, and in three centrality ranges of
10-30%, 30-50% and 50-90%. In contrast to the J/psi mesons, the
measured v(2) values for the Y mesons are found to be consistent with
zero. (C) 2021 The Author(s). Published by Elsevier B.V