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 φ6 in the small angle expansion. Furthermore, we discuss the leading terms in the anti-parallel lines limit at four loops.
|Journal||Proceedings of Science|
|Publication status||Published - 1 Jan 2018|
|Event||2018 Loops and Legs in Quantum Field Theory, LL 2018 - St. Goar, Germany|
Duration: 29 Apr 2018 → 4 May 2018