## Abstract

The second-order Fourier coefficients (v_{2}) characterizing the azimuthal distributions of [Formula presented] and [Formula presented] mesons produced in PbPb collisions at s_{ NN }=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 v_{2} coefficients of the azimuthal distributions. Results are reported for the rapidity range |y|<2.4, in the transverse momentum interval 0<p_{T}<50GeV/c, and in three centrality ranges of 10–30%, 30–50% and 50–90%. In contrast to the J/ψ mesons, the measured v_{2} values for the [Formula presented] mesons are found to be consistent with zero.

Original language | English |
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Article number | 136385 |

Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |

Volume | 819 |

DOIs | |

Publication status | Published - 10 Aug 2021 |

Externally published | Yes |

## Keywords

- 5.02 TeV
- CMS
- Flow
- Heavy ion
- PbPb
- Upsilon

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