27–30 Sept 2022
DESY Hamburg
Europe/Berlin timezone

One-loop soft anomalous dimension matrices for $t\bar t j$ hadroproduction

28 Sept 2022, 16:30
15m
Main Auditorium, DESY

Main Auditorium, DESY

Particle Phenomenology Parallel Session Wednesday

Speaker

Bakar Chargeishvili (Universität Hamburg, II Institut für Theoretische Physik)

Description

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 $t\bar{t}j + X$ hadroproduction process, that will enable the improvement of the accuracy of the $t\bar{t} j + X$ 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 samples with a different number of light jets.

Primary authors

Bakar Chargeishvili (Universität Hamburg, II Institut für Theoretische Physik) Maria Vittoria Garzelli (UNI/TH (Uni Hamburg, Institut fuer Theoretische Physik)) Sven-Olaf Moch (UNI/TH (Uni Hamburg, Institut fuer Theoretische Physik))

Presentation materials