Chiral transition in a strong magnetic background

作     者：Eduardo S. Fraga Ana Júlia Mizher 

作者机构：Instituto de Física Universidade Federal Do Rio de Janeiro Rio de Janeiro RJ 21941-972 Caixa Postal 68528 Brazil 

出 版 物：《Physical Review D》 (Phys Rev D Part Fields Gravit Cosmol)

年 卷 期：2008年第78卷第2期

页      面：025016-025016页

核心收录：

学科分类：07[理学] 0827[工学-核科学与技术] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：CAPES-COFECUB CNPq FAPERJ FUJB/UFRJ 

摘      要：The presence of a strong magnetic background can modify the nature and the dynamics of the chiral phase transition at finite temperature. We compute the modified effective potential in the linear sigma model with quarks to one loop in the MS¯ scheme for Nf=2. For fields eB∼5mπ2 and larger a crossover is turned into a weak first-order transition. We discuss possible implications for noncentral heavy ion collisions at the Relativistic Heavy Ion Collider and the Large Hadron Collider and for the primordial QCD transition.