Productions of Heavy Flavored Mesons in Relativistic Heavy Ion Collisions in the Recombination Model

TL;DR

This paper predicts the transverse momentum spectra of heavy flavored mesons in relativistic heavy ion collisions using the recombination model, highlighting the significance of thermal-shower parton recombination.

Contribution

It introduces a method to obtain shower parton distributions for heavy quarks and applies it to predict heavy meson production, incorporating thermal-shower recombination effects.

Findings

Recombination of thermal-shower partons significantly impacts meson spectra.

Predictions match experimental data for $J/$ transverse momentum spectra.

Heavy meson production varies with collision centrality.

Abstract

We get the distributions of shower partons initiated by heavy quarks $c$ and $b$ by studying the fragmentation functions in the framework of the recombination model. The transverse momentum spectra of heavy flavored mesons are predicted with these distributions. We find that the contribution from the recombination of thermal-shower partons is an important part in the total spectrum for the mesons. We predict the heavy flavored meson productions for different centralities with the heavy quark fugacities fitted by the experimental data of $J/\psi$ transverse momentum spectra in Au+Au collisions.