We consider QCD radiative corrections to top-quark pair production at hadron colliders. We use the qT subtraction formalism to perform a fully-differential computation for this process. Our calculation is accurate up to the next-to-leading order in QCD perturbation theory and it includes all the flavour off-diagonal partonic channels at the next-to-next-to-leading order. We present a comparison of our numerical results with those obtained with the publicly available numerical programs MCFM and Top++.
@article{arxiv.1508.03585,
title = {The $q_T$ subtraction method for top quark production at hadron colliders},
author = {Roberto Bonciani and Stefano Catani and Massimiliano Grazzini and Hayk Sargsyan and Alessandro Torre},
journal= {arXiv preprint arXiv:1508.03585},
year = {2016}
}
Comments
Few references and comments added, expanded discussion on the qt subtraction method, result unchanged, version published in EPJC