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arXiv 1804.08673hep-ph
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低能组分夸克和π介子与外电磁场和弱磁场的有效耦合

Low energy constituent quark and pion effective couplings to external electromagnetic field and a weak magnetic field

Fábio L. Braghin

摘要:

在这项工作中,编译的有效电磁场耦合到π介子和组分夸克和它们的有效相互作用推导出以前,包括修正NJL模型,提出。被认为是短期和有效的耦合常数被重新定义,将弱$B_0$的依赖性沿$\hat{z}$方向的弱外部磁场的特定情况下。它们对应于众所周知的π-组分夸克耦合和NJL和矢量NJL有效耦合,打破同位旋和手征对称性的修正。

英文摘要:

In this work, a compilation of effective electromagnetic field couplings to pions and constituent quarks and their effective interactions derived previously, including corrections to the NJL model, is presented. The particular case of a weak external magnetic field along the $\hat{z}$ direction is considered shortly and effective coupling constants are redefined to incorporate the weak-$B_0$ dependence. They correspond to corrections to well known pion-constituent quark couplings and to the NJL and vector NJL effective couplings that break isospin and chiral symmetries.

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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