Theorie-Palaver

 Jan. 6, 2015 at 2:30 p.m. in MITP Seminar Raum, Staudinger Weg 9, 02-430

Upalaparna Banerjee

Federico Gasparotto

Pouria Mazloumi

Yong Xu

Three-loop cusp anomalous dimension in QCD
Andrey Grozin (Novosibirsk State University)


Wilson line with a cusp describes interaction of a heavy quark which changes its velocity with soft gluons; it appears in many QCD problems. We have calculated the cusp anomalous dimension with 3-loop accuracy as a function of the angle. Some interesting limiting cases are considered.


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