The Collectivity of Heavy Mesons in Proton-Nucleus Collisions

Abstract

Using a model based on the Color Glass Condensate framework and the dilute-dense factorization, we systematically study the azimuthal angular correlations between a heavy flavor meson and a light reference particle in proton-nucleus collisions. The obtained second harmonic coefficients (also known as the elliptic flows) for $J/\psi$ and $D^0$ agree with recent experimental data from the LHC. We also provide predictions for the elliptic flows of ${\rm Y}$ and $B$ meson, which can be measured in the near future at the LHC. This work can shed light on the physics origin of the collectivity phenomenon in the collisions of small systems.

arXiv comment14 pages, 7 figures. This work is an extension of our earlier publication 10.1103/PhysRevLett.122.172302 (arXiv:1901.10320); v2 with minor updates

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