TTP - TTP07-14 Three-Loop Chromomagnetic Interaction in HQET

Institute for Theoretical Particle Physics (TTP)

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.

A.G. Grozin, P. Marquard, J.H. Piclum, M. Steinhauser

Nucl.Phys B789 277-293 2008

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TTP07-14 Three-Loop Chromomagnetic Interaction in HQET

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