One-loop soft anomalous dimension matrices for $t\bar t j$ hadroproduction
High Energy Physics - Phenomenology
2022-07-12 v2
Abstract
We calculate the one-loop corrections to the soft anomalous dimension matrices for the production of a top-antitop quark pair in association with a jet at hadron colliders. This is a step forward towards implementing a procedure for the resummation of soft-gluon emission logarithms for the hadroproduction process, that will enable the improvement of the accuracy of the cross sections, beyond the current degree of knowledge. The latter, so far, has reached the next-to-leading order (NLO) level, complemented by the accuracy of the Shower Monte Carlo approaches used in matching the NLO computations to parton showers (PS) and by merging with matrix elements with a different number of light jets.
Cite
@article{arxiv.2206.10977,
title = {One-loop soft anomalous dimension matrices for $t\bar t j$ hadroproduction},
author = {Bakar Chargeishvili and Maria Vittoria Garzelli and Sven-Olaf Moch},
journal= {arXiv preprint arXiv:2206.10977},
year = {2022}
}
Comments
29 pages, 13 figures