The Heavy Quark Form Factors at Two Loops

Abstract

We compute the two-loop QCD corrections to the heavy quark form factors in case of the vector, axial-vector, scalar and pseudo-scalar currents up to second order in the dimensional parameter $ϵ=(4-D)/2$. These terms are required in the renormalization of the higher order corrections to these form factors.

Comments: 131 pages, 3 figures