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arXiv 2203.05042hep-ph
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电弱玻色子质量的三圈QCD修正

Three-loop QCD corrections to the electroweak boson masses

Stephen P. Martin

摘要:

在QCD中,我发现了对标准模型中Higgs、W和Z玻色子的物理质量的三圈修正。得到的结果作为函数的$\overline{\rm{MS}}$拉格朗日参数,使用蝌蚪自由计划的真空期望值。在每种情况下,计算质量的依赖性的重整化尺度被发现是小于目前的实验不确定性。在希格斯玻色子质量的情况下,新的结果是最先进的,而$W$和$Z$的结果与相应的结果在壳层和混合计划在良好的数值协议。这些结果现在包括在SMDR(尺寸正则化中的标准模型)计算机代码中。

英文摘要:

I find the three-loop corrections at leading order in QCD to the physical masses of the Higgs, W, and Z bosons in the Standard Model. The results are obtained as functions of the $\overline{\rm{MS}}$ Lagrangian parameters only, using the tadpole-free scheme for the vacuum expectation value. The dependences of the computed masses on the renormalization scale are found to be smaller than present experimental uncertainties in each case. In the case of the Higgs boson mass, the new result is the state-of-the-art, while the results for $W$ and $Z$ are in good numerical agreement with corresponding results in the on-shell and hybrid schemes. These results are now included in the SMDR (Standard Model in Dimensional Regularization) computer code.

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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