NNLL resummation for the associated production of a top pair with a heavy boson at the LHC

TL;DR

This paper develops a NNLL resummation method for accurately calculating the production of top-quark pairs with heavy bosons at the LHC, improving theoretical predictions for cross sections and distributions.

Contribution

It introduces a novel NNLL resummation framework and a parton-level Monte Carlo for associated top-quark and heavy boson production at the LHC.

Findings

Enhanced precision in total cross section calculations

Improved differential distribution predictions

Quantified impact of NNLL corrections

Abstract

In this presentation we review recent results on the resummation of soft gluon emission corrections for the associated production of a top-quark pair with a heavy boson (Higgs/W/Z) at the Large Hadron Collider (LHC). We develop a parton level Monte Carlo based on a soft-gluon resummation formula valid up to next-to-next-to-leading logarithmic (NNLL) accuracy. With this tool we study the impact of the newly computed corrections to the total cross sections and some important differential distributions.