八夸克相互作用对手性相变的影响I:次级磁催化
Impact of eight-quark interactions in chiral phase transitions I: Secondary magnetic catalysis
摘要:
考虑了恒定磁场对由t Hooft六夸克项和八夸克相互作用扩展的四维Nambu和Jona-Lasinio模型的序参量的影响.结果表明,在特征标度$H\sim 10^{14}Λ^2$ G/MeV ^2下,多夸克相互作用导致序参量随场强的增加而急剧增加(二次磁催化)。
英文摘要:
The influence of a constant magnetic field on the order parameter of the four-dimensional Nambu and Jona-Lasinio model extended by the 't Hooft six-quark term and eight-quark interactions is considered. It is shown that the multi-quark interactions cause the order parameter to increase sharply (secondary magnetic catalysis) with increasing strength of the field at the characteristic scale $H\sim 10^{14}Λ^2$ G/MeV^2.
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