Energy Loss of Charm Quarks in the Quark-Gluon Plasma: Collisional vs Radiative

Munshi G. Mustafa

Authors on Pith no claims yet

classification ✦ hep-ph nucl-th

keywords energylosscharmcollisionalquarkquarksfoundhadrons

read the original abstract

Considering the collisional energy loss rates of heavy quarks from hard light parton interactions the total energy loss of a charm quark for a static medium has been computed. For the energy range $E\sim (5-10)$ GeV of charm quark, it is found to be almost same order as that of radiative ones estimated to a first order opacity expansion. The collisional energy loss will become much more important for lower energy charm quarks and this feature could be very interesting for phenomenology of hadrons spectra. Using such collisional energy loss rates we estimate the momentum loss distribution employing a Fokker-Planck equation and the total energy loss of a charm quark for an expanding quark-gluon plasma under conditions resembling the RHIC energies. The fractional collisional energy loss is found to be suppressed by a factor of 5 as compared to static case and does not depend linearly on the system size. We also investigate the heavy to light hadrons $D/\pi$ ratio at moderately large (5-10) GeV/$c$ transverse momenta and comment on its enhancement.

This paper has not been read by Pith yet.

discussion (0)

Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

Heavy Quark Transport is Non-Gaussian Beyond Leading Log
hep-ph 2026-04 unverdicted novelty 7.0

Heavy-quark momentum transfer beyond leading logarithm in weak-coupling plasmas is non-Gaussian with asymmetric exponential tails, matching the structure seen in strongly coupled holographic plasmas.
Bayesian Inference of Heavy-Quark Dissipation and Jet Transport Parameters from D-Meson observables in heavy-ion collisions at the LHC energies
nucl-th 2025-12 unverdicted novelty 7.0

First simultaneous Bayesian extraction of 2πT D_s and q-hat/T^3 from D-meson R_AA and v2 at 5.02 TeV, yielding a non-monotonic temperature dependence in their ratio that deviates from the expected value of 2.
Energy Loss of a Heavy Quark in a Collisional Quark-Gluon Plasma
hep-ph 2025-12 unverdicted novelty 5.0

Including thermal parton collisions via the BGK kernel increases the collisional energy loss of a heavy quark in QGP by ~8% at large velocities for α_s=0.3 compared to the collisionless limit.