尖端异常尺寸的四环结果

Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2018) Pub Date : 2018-07-13 DOI:10.22323/1.303.0018

R. Brüser, A. Grozin, J. Henn, M. Stahlhofen

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引用次数: 4

摘要

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。

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Four-loop results for the cusp anomalous dimension

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.

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Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2018)

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