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 $\epsilon =(4-D)/2$. These terms are required in the renormalization of the higher order corrections to these form factors.

arXiv comment131 pages, 3 figures

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