Study of azimuthal anisotropy of Υ(1S) mesons in pPb collisions at sNN = 8.16 TeV

The CMS collaboration
Phys.Lett.B 850 (2024) 138518, 2024.

Abstract (data abstract)
The azimuthal anisotropy of Υ(1S) mesons in high-multiplicity pPb collisions is studied using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy of 8.16 TeV. The Υ(1S) mesons are reconstructed using the dimuon decay channel. The anisotropy, characterized by the second Fourier harmonic coefficient v2sub, is determined using the two-particle correlation technique, in which the Υ(1S) mesons are correlated with charged hadrons. A large psuedorapidity gap is used to suppress short-range correlations. The v2sub values are measured in four transverse momentum intervals in the range from 0 - 30 GeV/c. No azimuthal anisotropy is observed for the Υ(1S) mesons in high-multiplicity pPb collisions, which is consistent with previous PbPb collision results. The results suggest that any collectivity on bottomonia is smaller than that of charmonia in pPb collisions.

  • Table 1

    Data from Figure 3 (left panel)

    10.17182/hepdata.131311.v1/t1

    The pT dependent v2sub values of Υ(1S) mesons measured in the high-multiplicity region of 70Ntrkoffline<300, where...

  • Table 2

    Data from Figure 3 (right panel)

    10.17182/hepdata.131311.v1/t2

    The pT dependent v2sub values of Υ(1S) mesons measured in the high-multiplicity region of 70Ntrkoffline<300, where...

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