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arXiv 1502.01030hep-ph
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夸克质量与四圈序的关系

Quark mass relations to four-loop order

Peter Marquard, Alexander V. Smirnov, Vladimir A. Smirnov, Matthias Steinhauser

摘要:

我们给出了在壳层上定义的重夸克质量与四圈级$\bar{\rm MS}$方案之间关系的结果。本文简述了四圈壳层积分的计算方法,并利用新的结果建立了各种短程质量与$\bar{\rm MS}$夸克质量之间的关系,达到了次-领先级的精度。这些关系对精确测定$\bar{\rm MS}$重夸克质量起着重要作用。

英文摘要:

We present results for the relation between a heavy quark mass defined in the on-shell and $\bar{\rm MS}$ scheme to four-loop order. The method to compute the four-loop on-shell integral is briefly described and the new results are used to establish relations between various short-distance masses and the $\bar{\rm MS}$ quark mass to next-to-next-to-next-to-leading order accuracy. These relations play an important role in the accurate determination of the $\bar{\rm MS}$ heavy quark masses.

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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