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

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.

Comments: 9 pages, 3 figures, 1 table. Proceedings of the 13th International Symposium on Radiative Corrections (RADCOR 2017), 24-29 September 2017, St. Gilgen, Austria. Based in part on arXiv:1611.00049 and arXiv:1702.00800