The second-order Fourier coefficients (v2) characterizing the azimuthal distributions of Y1S and Y2S mesons produced in PbPb collisions at sqrt(sNN)=5.02TeV 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 1.7nb−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<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.

Measurement of the azimuthal anisotropy of Y1S and Y2S mesons in PbPb collisions at sqrt(sNN)=5.02TeV

Tosi S.;
2021-01-01

Abstract

The second-order Fourier coefficients (v2) characterizing the azimuthal distributions of Y1S and Y2S mesons produced in PbPb collisions at sqrt(sNN)=5.02TeV 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 1.7nb−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<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.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11567/1058116
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