2000 character limit reached
Four-loop results for the cusp anomalous dimension (1807.05145v2)
Published 13 Jul 2018 in hep-ph
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 $\varphi6$ in the small angle expansion. Furthermore, we discuss the leading terms in the anti-parallel lines limit at four loops.
Paper Prompts
Sign up for free to create and run prompts on this paper using GPT-5.
Top Community Prompts
Collections
Sign up for free to add this paper to one or more collections.