A Systematic Study on Direct Photon Production from Central Heavy Ion Collisions

Abstract : We investigate the production of direct photons in central Au-Au collisions at the relativistic Heavy-Ion Collider (RHIC) at 200 GeV per nucleon, considering all possible sources. We treat thermal photons emitted from a quark-gluon plasma and from a hadron gas, based on a realistic thermodynamic expansion. Hard photons from elementary nucleon-nucleon scatterings are included: primordial elementary scatterings are certainly dominant at large transverse momenta, but also secondary photons from jet fragmentation and jet-photon conversion cannot be ignored. In both cases we study the effect of energy loss, and we also consider photons emitted from bremsstrahlung gluons via fragmentation.
Type de document :
Article dans une revue
Journal of Physics G: Nuclear and Particle Physics, IOP Publishing, 2009, 36, pp.035101. <10.1088/0954-3899/36/3/035101>


http://hal.in2p3.fr/in2p3-00216073
Contributeur : Dominique Girod <>
Soumis le : jeudi 24 janvier 2008 - 13:59:38
Dernière modification le : mercredi 27 juillet 2016 - 14:48:48

Identifiants

Collections

Citation

Fu-Ming Liu, Klaus Werner. A Systematic Study on Direct Photon Production from Central Heavy Ion Collisions. Journal of Physics G: Nuclear and Particle Physics, IOP Publishing, 2009, 36, pp.035101. <10.1088/0954-3899/36/3/035101>. <in2p3-00216073>

Exporter

Partager

Métriques

Consultations de la notice

156