$J/\psi$ production and elliptic flow parameter $v_2$ at LHC energy

TL;DR

This paper uses the recombination model to analyze $J/rac12$ production and elliptic flow at LHC energies, predicting a decrease in $v_2$ with increasing transverse momentum due to jet contributions.

Contribution

It introduces a detailed analysis of $J/rac12$ production and elliptic flow at high transverse momentum using the recombination model, considering jet effects at LHC.

Findings

$J/rac12$ distribution as a function of $p_T$ and azimuthal angle $$

Predicted decrease of $v_2$ with $p_T$ when jet recombination is significant

Highlights the impact of high jet density on elliptic flow measurements.

Abstract

We apply the recombination model to study $J/\psi$ production and its elliptic flow in the region of $10<p_T<20$ GeV/$c$ at LHC energy. We show the distribution of $J/\psi$ as function of the transverse momentum $p_T$ and the azimuthal angle $\phi$. If the contribution from the recombination of shower partons from two neighboring jets can not be ignored due to the high jet density at LHC, the elliptic flow parameter $v_2$ of $J/\psi$ is predicted to decrease with $p_T$.