We compute the two-loop QCD corrections to the heavy quark form factors in the case of the vector, axial-vector, scalar and pseudoscalar currents up to second order in the dimensional parameter μ=(4-D)/2. These terms are required in the renormalization of the higher-order corrections to these form factors.
Heavy quark form factors at two loops
Falcioni, G.;
2018-01-01
Abstract
We compute the two-loop QCD corrections to the heavy quark form factors in the case of the vector, axial-vector, scalar and pseudoscalar currents up to second order in the dimensional parameter μ=(4-D)/2. These terms are required in the renormalization of the higher-order corrections to these form factors.
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PhysRevD.97.094022.pdf
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