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arXiv 1004.3495hep-thhep-ph
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非阿贝尔弦线的规范不变性和真空能

Gauge Invariance and Vacuum Energies of Non-Abelian String-Configurations

H. Weigel, M. Quandt

摘要:

改进了非阿贝尔规范理论中费米子对类弦组态真空极化能贡献的计算方法。我们建立了新的方法,通过数值验证的不变性下(的一个子集)的局部规范变换。这也为使用光谱方法计算真空极化能量提供了进一步的支持。我们确认,真空能量的MS-酒吧重整化计划是微小的相比,波动费米子场的质量。文中还给出了物理上壳格式的数值结果。

英文摘要:

We improve on a method to compute the fermion contribution to the vacuum polarization energy of string-like configurations in a non-Abelian gauge theory. We establish the new method by numerically verifying the invariance under (a subset of) local gauge transformations. This also provides further support for the use of spectral methods to compute vacuum polarization energies in general. We confirm that the vacuum energy in the MS-bar renormalization scheme is tiny as compared to the mass of the fluctuating fermion field. Numerical results for the physical on-shell scheme are also presented.

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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