arXiv:0707.1388·v1·High Energy Physics — Phenomenology
Three-Loop Chromomagnetic Interaction in HQET
A.G. Grozin🇨🇦 · P. Marquard🇩🇪 · J.H. Piclum🇨🇦 · M. Steinhauser🇩🇪
Abstract
We compute the three-loop QCD corrections to the quark chromomagnetic moment and thus obtain the matching coefficient and the anomalous dimension of the chromomagnetic interaction in HQET. As a byproduct we obtain the three-loop corrections to the quark anomalous magnetic moment.
Comments: 22 pages