arXiv:0809.4540·v3·High Energy Physics — Phenomenology
Higher radiative corrections in HQET
Abstract
After a brief introduction to Heavy Quark Effective Theory, we discuss representation in HQET and methods of calculation of some kinds of HQET diagrams up to three loops.
Comments: Lectures given at II Helmholtz summer school "Heavy quark physics", Dubna, August 2008; v2: extended, new derivations of some results, a few references added; v3: a few typos fixed