Hard gluon evolution in warming medium

Abstract

We describe the energy distribution of hard gluons travelling through a dense quark-gluon plasma whose temperature increases linearly with time, within a probabilistic perturbative approach. The results were applied to the thermalization problem in heavy ion collisions, in the third stage of the bottom-up picture, to estimate the initial time for the third stage of the bottom-up scenario. We then look at the entropy density and average temperature of the soft thermal bath, as the system approaches (local) thermal equilibrium.

6 pages, 5 figures; corrected for updated references and acknowledgements

References in corpus (4)

• Simple Formula for High-Energy Gluon Bremsstrahlung in a Finite, Expanding Medium
• High-energy jet quenching in weakly-coupled quark-gluon plasmas
• Transverse momentum broadening from the lattice
• Decoherence and Entropy Production in Relativistic Nuclear Collisions