论文标题
磁场引起的校正对NJL模型耦合常数从真空极化
Magnetic field induced corrections to the NJL model coupling constant from vacuum polarization
论文作者
论文摘要
通过考虑单循环背景方法来计算Nambu-Jona-Lasinio模型的耦合常数的磁场依赖性校正。与Lattice QCD的结果相比，这些耦合常数破坏了手性和风味对称性，并略微改善了夸克冷凝物的数值。还提出了中性锥子和kaon质量的相应磁场依赖性，并将其与可用的晶格QCD计算进行了比较。还估计了对$η-η'$混合角的磁场校正。
Magnetic field dependent corrections for the coupling constant of the Nambu-Jona-Lasinio model are calculated by considering the one-loop background field method. These coupling constants turn out to break chiral and flavor symmetries and they lead to a slight improvement of the numerical values of the up and down quark condensates when compared to results from lattice QCD. The corresponding magnetic field dependencies of the neutral pion and kaon masses are also presented and compared with available lattice QCD calculations. The resulting magnetic field correction to the $η-η'$ mixing angle is also estimated.
