Associated production of a top pair and a W boson at next-to-next-to-leading logarithmic accuracy

Understand

We consider soft gluon emission corrections to the production of a top-antitop pair in association with a W boson at the Large Hadron Collider.

• We obtain a soft-gluon resummation formula for this production process which is valid up to next-to-next-to-leading logarithmic accuracy.
• We evaluate the soft gluon resummation formula in Mellin space by means of an in-house parton level Monte Carlo code which allows us to obtain predictions for the total cross section as well as for several differential distributions.
• We study the impact of the soft-gluon resummation corrections in comparison to fixed order calculations.