Effect of Energy Loss On Azimuthal Correlation of charm and correlated charm decay in collision of lead nuclei at sqrt{s} = 2.76 A TeV

TL;DR

This paper investigates how energy loss of charm quarks in quark-gluon plasma affects azimuthal correlations and dilepton spectra in lead nucleus collisions at 2.76 A TeV, revealing observable modifications.

Contribution

It introduces an empirical model of charm quark energy loss and analyzes its impact on azimuthal correlations and dilepton invariant mass spectra in heavy ion collisions.

Findings

Energy loss causes discernible changes in azimuthal correlations.

Modest increase in dilepton invariant mass spectrum due to energy loss.

Correlation patterns are sensitive to momentum cuts.

Abstract

We present the effect of energy loss of charm/anti-charm produced in a relativistic heavy ion collision as they traverse the resulting quark gluon plasma on the azimuthal correlation of c\bar{c} and D\bar{D} pairs and their correlated decay into leptons. We employ an empirical model of energy loss by charm quark energy loss and find that the consequences are easily discernible as different cuts on their momenta are applied. We also notice a modest increase in the invariant mass spectrum of dileptons from correlated decay as mentioned above due to energy loss.