Kopeliovich, Boris Z. and Schaefer, Andreas and Tarasov, Alexander V. (1999) Bremsstrahlung of a quark propagating through a nucleus. PHYSICAL REVIEW C, 59 (3). pp. 1609-1619. ISSN 0556-2813,
Full text not available from this repository.Abstract
The density of gluons produced in the central rapidity region of a heavy-ion collision is poorly known. We investigate the influence of the effects of quantum coherence on the transverse momentum distribution of photons and gluons radiated by a quark propagating through nuclear matter. We describe the case where the radiation time substantially exceeds the nuclear radius (the relevant case for RHIC and LHC energies), which is different from what is known as the Landau-Pomeranchuk-Migdal effect corresponding to an infinite medium. We find suppression of the radiation spectrum at small transverse photon(gluon) momentum k(T), but enhancement for k(T)>1 GeV. Any nuclear effects vanish for k(T)greater than or equal to 10 GeV. Our results also allow us to calculate the k(T)-dependent nuclear effects in prompt photon, light, and heavy (Drell-Yan) dilepton and hadron production. [S0556-2813(99)05003-7].
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RADIATIVE ENERGY-LOSS; QUANTUM ELECTRODYNAMICS; INFINITE-MOMENTUM; DEPENDENCE; QCD; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 15 Nov 2022 14:07 |
| Last Modified: | 15 Nov 2022 14:07 |
| URI: | https://pred.uni-regensburg.de/id/eprint/48497 |
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