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arXiv 2005.11636hep-ph
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用不同核的瞬时Bethe-Salpeter方程研究重赝标量的质谱

Mass spectra of heavy pseudoscalars using instantaneous Bethe-Salpeter equation with different kernels

Wei Li, Ying-Long Wang, Tai-Fu Feng, Guo-Li Wang

摘要:

在Feynman规范、Landau规范、Coulomb规范和时间分量Coulomb规范中,分别用线性标量势加一个胶子交换矢势得到不同的核,求解了重赝标的瞬时Bethe-Salpeter方程.我们得到了重赝标量的质量谱,并比较了不同核的结果,发现在相同的参数下,时间分量库仑规范的质量分裂最小,费曼和库仑规范的质量分裂最大,朗道规范的质量分裂中等。

英文摘要:

We solved the instantaneous Bethe-Salpeter equation for heavy pseudoscalars in different kernels, where the kernels are obtained using linear scalar potential plus one gluon exchange vector potentials in Feynman gauge, Landau gauge, Coulomb gauge and time-component Coulomb gauge. We obtained the mass spectra of heavy pseudoscalars, and compared the results between different kernels, found that using the same parameters we obtain the smallest mass splitting in time-component Coulomb gauge, the similar largest mass splitting in Feynman and Coulomb gauges, middle size splitting in Landau gauge.

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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