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arXiv 1409.0073hep-ph
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夸克的反常色磁矩

Anomalous chromomagnetic moment of quarks

Ishita Dutta Choudhury, Amitabha Lahiri

摘要:

我们用微扰法计算了夸克在单圈处的反常色磁偶极矩,并考虑了胶子小规范不变质量的影响。我们发现部分协议与以前的计算,以及分歧。我们解释这些结果,注意到微扰理论是不正确的,在能量尺度上,这些计算进行,并继续给出结果在$M_Z$规模。我们发现,作为胶子质量的函数,光夸克的反常矩的显着变化。

英文摘要:

We do a perturbative calculation of the anomalous chromomagnetic dipole moment of quarks at one-loop, also considering the effect of a small gauge-invariant mass of the gluon. We find partial agreement with a previous calculation, as well as a divergence. We explain these results by noting that perturbation theory is not valid at the energy scales where these calculations were done, and proceed to give the results at the $M_Z$ scale. We find significant variation, of the anomalous moment of the light quarks, as a function of gluon mass.

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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