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Two-loop QCD Corrections to the Heavy Quark Form Factors: the Vector Contributions

W. Bernreuther·R. Bonciani·T. Gehrmann·R. Heinesch·T. Leineweber·P. Mastrolia·E. Remiddi
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Abstract

We present closed analytic expressions of the electromagnetic vertex form factors for heavy quarks at the two-loop level in QCD for arbitrary momentum transfer. The calculation is carried out in dimensional regularization. The electric and magnetic form factors are expressed in terms of 1-dimensional harmonic polylogarithms of maximum weight 4.

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W. Bernreuther, R. Bonciani, T. Gehrmann, R. Heinesch, T. Leineweber, P. Mastrolia, E. Remiddi. 2004-11-11. Two-loop QCD Corrections to the Heavy Quark Form Factors: the Vector Contributions. https://doi.org/10.1016/j.nuclphysb.2004.10.059

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