We present the results for heavy quark form factors at two-loop order in perturbative QCD for different currents, namely vector, axial-vector, scalar and pseudo-scalar currents, up to second order in the dimensional regularization parameter. We outline the necessary computational details, ultraviolet renormalization and corresponding universal infrared structure.
@article{arxiv.1711.04880,
title = {Heavy quark form factors at two loops in perturbative QCD},
author = {J. Ablinger and A. Behring and J. Blümlein and G. Falcioni and A. De Freitas and P. Marquard and N. Rana and C. Schneider},
journal= {arXiv preprint arXiv:1711.04880},
year = {2018}
}
Comments
13 pages Latex, Proceedings of XLI International Conference of Theoretical Physics "Matter to the Deepest", Podlesice, Poland, September 3-8, 2017 and RADCOR 2017, St.~Gilgen Austria, Sept 24-29, 2017