Soft-gluon corrections for tW production at N3LO
Abstract
I present approximate results that include third-order soft-gluon corrections for the associated production of a single top quark with a W boson. The calculation uses expressions from soft-gluon resummation at next-to-next-to-leading-logarithm (NNLL) accuracy. From the NNLL resummed cross section I derive approximate next-to-next-to-next-to-leading order (aN3LO) cross sections for the process bg → tW- at LHC and Tevatron energies. The aN3LO top-quark transverse-momentum and rapidity distributions in tW production are also presented.
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