Energy loss of $B$ and $D$ mesons in PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV

TL;DR

This paper calculates the collisional and radiative energy loss of B and D mesons in PbPb collisions at 2.76 TeV, comparing theoretical predictions with experimental data to understand the mechanisms of energy loss.

Contribution

It provides a detailed analysis of both collisional and radiative energy loss mechanisms for B and D mesons in heavy-ion collisions at LHC energies.

Findings

D meson R_AA explained by radiative energy loss alone.

B meson R_AA requires both collisional and radiative energy loss.

Theoretical calculations align with experimental measurements.

Abstract

We present the calculations of collisional and radiative energy loss of $B$ and $D$ mesons in the medium produced in PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV. The nuclear modification factor $R_{AA}$ of $B$ and $D$ mesons including shadowing and energy loss are calculated and compared with the measured data. While the $D$ meson $R_{AA}$ can be described in terms of the radiative energy loss alone, both the collisional as well as radiative energy loss are required to explain the $B$ meson measurements.