We compute the three-loop master integrals required for the calculation of the triple-real contribution to the N3LO quark beam function due to the splitting of a quark into a virtual quark and three collinear gluons, q→q∗+ggg. This provides an important ingredient for the calculation of the leading-color contribution to the quark beam function at N3LO.
@article{arxiv.1904.02433,
title = {Triple-real contribution to the quark beam function in QCD at next-to-next-to-next-to-leading order},
author = {Kirill Melnikov and Robbert Rietkerk and Lorenzo Tancredi and Christopher Wever},
journal= {arXiv preprint arXiv:1904.02433},
year = {2019}
}
Comments
31 pages, 2 figures; published version, updated ancillary file (accessible through url in the section "Results")