Fries, Rainer J. and Mueller, Berndt and Schaefer, Andreas (2009) Decoherence and entropy production in relativistic nuclear collisions. PHYSICAL REVIEW C, 79 (3): 034904. ISSN 0556-2813,
Full text not available from this repository.Abstract
Short thermalization times of less than 1 fm/c for quark and gluon matter have been suggested by recent experiments at the Relativistic Heavy Ion Collider. It has been difficult to justify this rapid thermalization in first-principle calculations based on perturbation theory or the color glass condensate picture. Here, we address the related question of the decoherence of the gluon field, which is a necessary component of thermalization. We present a simplified leading-order computation of the decoherence time of a gluon ensemble subject to an incoming flux of Weizsacker-Williams gluons. We also discuss the entropy produced during the decoherence process and its relation to the entropy in the final state that has been measured experimentally.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; QUANTUM DECOHERENCE; ELLIPTIC FLOW; HIGH-ENERGY; SMALL X; THERMALIZATION; COLLABORATION; EQUILIBRATION; SATURATION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Oct 2020 07:24 |
| Last Modified: | 05 Oct 2020 07:24 |
| URI: | https://pred.uni-regensburg.de/id/eprint/29434 |
Actions (login required)
 |
View Item |
