Chiral transition in a strong magnetic background

被引：167
|
作者：
Fraga, Eduardo S. [1 ]
Mizher, Ana Julia [1 ]
机构：
[1] Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, Brazil
来源：
PHYSICAL REVIEW D | 2008年 / 78卷 / 02期
关键词：
D O I：
10.1103/PhysRevD.78.025016
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
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 N-f=2. For fields eB similar to 5m(pi)(2) 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.
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页数：7
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