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arXiv 1003.0047hep-ph
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PNJL模型中的手征磁效应

Chiral magnetic effect in the PNJL model

Kenji Fukushima, Marco Ruggieri, Raoul Gatto

摘要:

本文研究了在强磁场和手征化学势$μ_5$存在下的具有Polyakov环的双味Nambu-Jona-Lasinio模型(PNJL模型).首先研究了强磁场作用下的手征对称性破缺和去禁闭交叉的性质。然后讨论了$μ_5$对相结构的影响。最后计算了与手征磁效应有关的手征电荷、电流及其磁化率。

英文摘要:

We study the two-flavor Nambu--Jona-Lasinio model with the Polyakov loop (PNJL model) in the presence of a strong magnetic field and a chiral chemical potential $μ_5$ which mimics the effect of imbalanced chirality due to QCD instanton and/or sphaleron transitions. Firstly we focus on the properties of chiral symmetry breaking and deconfinement crossover under the strong magnetic field. Then we discuss the role of $μ_5$ on the phase structure. Finally the chirality charge, electric current, and their susceptibility, which are relevant to the Chiral Magnetic Effect, are computed in the model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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