The four-loop cusp anomalous dimension from the N=4 Sudakov form factor
The four-loop cusp anomalous dimension from the N=4 Sudakov form factor
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N=4 Sudakov 形状因子的四环尖点异常尺寸
DOI:
10.1016/j.physletb.2020.135543
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发表时间:
2020
影响因子:
4.4
通讯作者:
Yang, Gang
中科院分区:
文献类型:
--
作者:
Huber, Tobias;von Manteuffel, Andreas;Panzer, Erik;Schabinger, Robert M.;Yang, Gang
We present an analytic derivation of the full four-loop cusp anomalous dimension of N= 4 supersymmetric Yang-Mills theory from the Sudakov form factor. To extract the cusp anomalous dimension, we calculate the ϵ− 2 pole of the form factor using parametric integrations of finite integrals. We provide uniformly transcendental results for the master integrals through to weight six and confirm a very recent independent analytic result for the full four-loop cusp anomalous dimension of the N= 4 model.
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DOI:
--
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