Speaker
Tommaso Saracco
(Nikhef)
Description
We present new results for the invariant-mass distribution and total cross section for four-top production, incorporating the resummation of soft-gluon corrections at improved next-to-leading logarithmic accuracy, including non-logarithmic $\mathcal{O}(\alpha_s)$ terms (NLL’ accuracy). After discussing the challenges of invariant-mass threshold resummation in processes with six coloured legs, we present our resummed predictions matched to fixed-order NLO calculations. Our results modify the shape of the fixed-order invariant-mass distribution and significantly reduce theoretical uncertainties.
Authors
Melissa Corona van Beekveld
(Nikhef National institute for subatomic physics (NL))
Anna Kulesza
(University of Muenster)
Michele Lupattelli
(Muenster University)
Tommaso Saracco
(Nikhef)
