Speaker
Laura Moreno Valero
(University of Muenster)
Description
In this talk we present results for soft gluon threshold resummation applied to the production of four top quarks. Current theoretical predictions include next-to-leading (NLO) strong and electroweak corrections, yielding a relatively large associated systematic error. By considering the matching of the next-to-leading logarithmic (NLL) result to the available NLO result, we achieve NLO+NLL$^\prime$ precision for the total cross section, which in addition to logarithmic terms also takes into account $\mathcal{O}(\alpha_s)$ non-logarithmic terms that do not vanish at threshold. The threshold-resummed result shows an improved scale dependence when compared to the fixed-order calculation.
Primary authors
Prof.
Anna Kulesza
(University of Muenster)
Laura Moreno Valero
(University of Muenster)
Melissa van Beekveld
(University of Oxford)
