Department

Physics

Document Type

Article

Publication Date

7-1-2014

Abstract

I discuss threshold resummation at NNLL accuracy in the standard moment-space approach in perturbative QCD for top-pair and single-top production. For top quark pair production I present new approximate NNLO results for the total cross section and for the top quark transverse momentum and rapidity distributions at 8 TeV LHC energy. I discuss the accuracy of the soft-gluon approximation and show that the NLO and NNLO approximate results from resummation are practically indistinguishable from exact NLO and partial NNLO results. For single top production I present new approximate NNLO results for the total cross sections in all three channels at the LHC and also for the top quark transverse momentum distributions in t-channel production and in top-quark associated production with a W boson. For both tt¯ and single-top production the agreement of theoretical results with LHC and Tevatron data is excellent.

Journal

Physics of Particles and Nuclei

Journal ISSN

1531-8559

Volume

45

Issue

4

First Page

714

Last Page

722

Digital Object Identifier (DOI)

10.1134/S1063779614040091

Included in

Physics Commons

Share

COinS