Four-loop results for the cusp anomalous dimension

R. Brüser, A. Grozin, J. Henn, M. Stahlhofen
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引用次数: 4

Abstract

We review the current status of calculations of the HQET field anomalous dimension and the cusp anomalous dimension. In particular, we give the results at 4 loops for the quartic Casimir contribution, and for the full QED case, up to $\varphi^6$ in the small angle expansion. Furthermore, we discuss the leading terms in the anti-parallel lines limit at four loops.
尖端异常尺寸的四环结果
综述了HQET场异常维数和尖端异常维数的计算现状。特别地,我们给出了四次卡西米尔贡献的结果,以及在小角展开下的完整QED情况下,高达$\varphi^6$的结果。进一步讨论了四环处反平行线极限的前导项。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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