210 articles – 1947 Notices  [english version]
 HAL : in2p3-00024581, version 1
 arXiv : hep-ph/0404207
 Physical Review Letters 95 (2005) 052001
 Critical Opacity: a possible explanation of the fast thermalisation times seen in BNL RHIC experiments
 (2005)
 The Nambu Jona-Lasinio Lagrangian offers an explication of the seemingly contradictory observations that a) the energy loss in the entrance channel of heavy ion reactions is not sufficient to thermalize the system and that b) the observed hadron cross sections are in almost perfect agreement with hydrodynamical calculations. According to this scenario, a critical opacity develops close to the chiral phase transition which equilibrates and hadronizes the expanding system very effectively. It creates as well radial flow and, if the system is not isotropic, finite $v_2$ values.
 Thème(s) : Physique/Physique des Hautes Energies - Phénoménologie
 Mot(s)-clé(s) : colour model – chiral symmetries – heavy ion-nucleus reactions
 Lien vers le texte intégral : http://fr.arXiv.org/abs/hep-ph/0404207
 in2p3-00024581, version 1 http://hal.in2p3.fr/in2p3-00024581 oai:hal.in2p3.fr:in2p3-00024581 Contributeur : Dominique Girod <> Soumis le : Mercredi 14 Septembre 2005, 16:03:39 Dernière modification le : Mardi 24 Janvier 2006, 10:00:27