论文标题
在均匀磁场下的Nambu-Jona Lasinio模型的正则化和异常磁矩的作用
Regularization of the Nambu-Jona Lasinio model under a uniform magnetic field and the role of the anomalous magnetic moments
论文作者
论文摘要
研究了NAMBU和JONA-LASINIO模型的SU（3）版本中对夸克物质的真空贡献。检查了标准的正规化程序，并提出了新的处方。为此，根据磁强度，使用分析正则化和减法方案来处理发散。该方案与标准的三动量截止配方结合使用，并减少为消失的磁强度。此外，考虑了夸克异常磁矩和磁场之间直接耦合的影响。研究了单个颗粒特性以及大量热力学量，以用于中子恒星中发现的物质的构型。在零温度下检查了广泛的重型型重密度和磁强度。
The vacuum contribution to quark matter under a uniform magnetic field within the SU(3) version of the Nambu and Jona-Lasinio model is studied. The standard regularization procedure is examined and a new prescription is proposed. For this purpose analytic regularization and a subtraction scheme are used to deal with divergencies depending on the magnetic intensity. This scheme is combined with the standard three momentum cutoff recipe, and reduces to it for vanishing magnetic intensity. Furthermore, the effects of a direct coupling between the anomalous magnetic moments of the quarks and the magnetic field is considered. Single particle properties as well as bulk thermodynamical quantities are studied for a configuration of matter found in neutron stars. A wide range of baryonic densities and magnetic intensities are examined at zero temperature.
