A measurement of the elliptic flow (v 2 ) of prompt J/ψ mesons in high-multiplicity pPb collisions is reported using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy s NN =8.16TeV. Prompt J/ψ mesons decaying into two muons are reconstructed in the rapidity region in the nucleon-nucleon center-of-mass frame (y cm ), corresponding to either −2.86<y cm <−1.86 or 0.94<y cm <1.94. The average v 2 result from the two rapidity ranges is reported over the transverse momentum (p T ) range from 0.2 to 10 GeV. Positive v 2 values are observed for the prompt J/ψ meson, as extracted from long-range two-particle correlations with charged hadrons, for 2<p T <8 GeV. The prompt J/ψ results are compared with previous CMS measurements of elliptic flow for open charm mesons (D 0 ) and strange hadrons. From these measurements, constraints can be obtained on the collective dynamics of charm quarks produced in high-multiplicity events arising from small systems

Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., et al. (2019). Observation of prompt J/ψ meson elliptic flow in high-multiplicity pPb collisions at sqrt(sNN)=8.16 TeV. PHYSICS LETTERS. SECTION B, 791, 172-194 [10.1016/j.physletb.2019.02.018].

Observation of prompt J/ψ meson elliptic flow in high-multiplicity pPb collisions at sqrt(sNN)=8.16 TeV

Benaglia, A.;Beschi, A.;Brivio, F.;Ciriolo, V.;Dinardo, M. E.;Fiorendi, S.;Ghezzi, A.;Govoni, P.;Malberti, M.;Massironi, A.;Monti, F.;Moroni, L.;Paganoni, M.;Ragazzi, S.;Tabarelli de Fatis, T.;Zuolo, D.;Lucchini, M. T.;De Guio, F.;
2019

Abstract

A measurement of the elliptic flow (v 2 ) of prompt J/ψ mesons in high-multiplicity pPb collisions is reported using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy s NN =8.16TeV. Prompt J/ψ mesons decaying into two muons are reconstructed in the rapidity region in the nucleon-nucleon center-of-mass frame (y cm ), corresponding to either −2.86
Articolo in rivista - Articolo scientifico
Physics, LHC, CMS, Correlation, Flow, Heavy flavor, Heavy-ion physics, pPb
English
2019
791
172
194
none
Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., et al. (2019). Observation of prompt J/ψ meson elliptic flow in high-multiplicity pPb collisions at sqrt(sNN)=8.16 TeV. PHYSICS LETTERS. SECTION B, 791, 172-194 [10.1016/j.physletb.2019.02.018].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/221145
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