TTP09-15 Light quark mass effects in the chromomagnetic moment

TTP09-15 Light quark mass effects in the chromomagnetic moment

TTP09-15 Light quark mass effects in the chromomagnetic moment

We present the three-loop QCD corrections to the quark chromomagnetic moment including two different nonzero masses. This is a necessary ingredient to obtain the corresponding corrections to the chromomagnetic coefficient in the Heavy Quark Effective Theory (HQET) Lagrangian.

S. Bekavac, A. Grozin, D. Seidel, M. Steinhauser
PDF PostScript arXiv