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 $\Upsilon$ 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.
Highlights
In the last decade, the collectivity phenomenon in small collisional systems has been an extremely interesting topic in heavy ion physics, with a lot of experimental evidences [1,2,3,4,5,6,7,8] observed in high-multiplicity events
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
Together with the input of parton distribution functions for the incoming proton [84], we can describe the collective behavior of heavy quarkonia and open heavy flavors with the same color glass condensate (CGC) model, which indicates the robustness of the anisotropy generated from the initial-state effects in the CGC formalism in small collision systems
Summary
The collectivity phenomenon in small collisional systems (such as proton-proton and protonnucleus collisions) has been an extremely interesting topic in heavy ion physics, with a lot of experimental evidences [1,2,3,4,5,6,7,8] observed in high-multiplicity events. This particular phenomenon, which implies nontrivial angular correlations among many produced particles in small systems, can be conveniently described by the Fourier harmonics of the azimuthal angular distribution of the measured particles.
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call