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arXiv 2201.12073hep-phhep-exhep-th
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关于QCD和EW微扰修正对极运行顶夸克质量比的相互作用的注记

Notes on interplay of the QCD and EW perturbative corrections to the pole-running top-quark mass ratio

A. L. Kataev, V. S. Molokoedov

摘要:

在Fleischer-Jegerlehner蝌蚪方案中给出了已知的单圈EW修正对标准模型中顶夸克通过粒子质量的极点和运行$\msbar$方案质量之间关系的具体表示,其中Higgs场的真空期望值被重整化.强调了在所考虑的情况下,在这种关系中考虑EW和QCD效应的重要性。我们注意到,舍弃EW修正会导致极质量和运行$t$ -夸克质量之间的差值发生过$10\;{\rm{GeV}}$移动。这个量级基本上超过了所考虑的关系的现代不确定性,这是从Tevatron和LHC数据的处理中得出的,在Tevatron和LHC数据中,当只考虑它们之间的QCD修正时,极夸克质量和运行$t$夸克质量都用广泛的方法定义。

英文摘要:

A specific representation of the known one-loop EW correction to the relation between the pole and running $\msbar$-scheme masses of the top-quark through particle masses of the Standard Model is given within the Fleischer-Jegerlehner tadpole scheme, where the vacuum expectation value of the Higgs field is renormalized. The importance of taking into account both the EW and QCD effects in this relation in the considered case is emphasized. It is noted that the discard of the EW corrections leads to over $10\;{\rm{GeV}}$ shift in the difference between the pole and running $t$-quark masses. This magnitude exceeds essentially the modern uncertainties of the considered relation, following from the treatment of the Tevatron and LHC data where both pole and running $t$-quark masses are defined in the widespread approach when only the QCD corrections are kept in mind between them.

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