The second-order Fourier coefficients (v2) characterizing the azimuthal distributions of [Formula presented] and [Formula presented] mesons produced in PbPb collisions at sjavax.xml.bind.JAXBElement@129f7a74=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<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.

Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Dragicevic, M., et al. (2021). Measurement of the azimuthal anisotropy of Y(1S) and Y(2S) mesons in PbPb collisions at √sNN=5.02TeV. PHYSICS LETTERS. SECTION B, 819 [10.1016/j.physletb.2021.136385].

Measurement of the azimuthal anisotropy of Y(1S) and Y(2S) mesons in PbPb collisions at √sNN=5.02TeV

Ciocci M. A.;Messineo A.;
2021-01-01

Abstract

The second-order Fourier coefficients (v2) characterizing the azimuthal distributions of [Formula presented] and [Formula presented] mesons produced in PbPb collisions at sjavax.xml.bind.JAXBElement@129f7a74=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<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.
2021
Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Dragicevic, M., et al. (2021). Measurement of the azimuthal anisotropy of Y(1S) and Y(2S) mesons in PbPb collisions at √sNN=5.02TeV. PHYSICS LETTERS. SECTION B, 819 [10.1016/j.physletb.2021.136385].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1327151