Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production

Details Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production

2011-03-14

arxiv.org/abs/1103.2792v1

Phys.Rev.D83:091503,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 4 figures

Scientific paper

10.1103/PhysRevD.83.091503

I present the resummation of collinear and soft gluon corrections to single top quark production in the t channel at next-to-next-to-leading logarithm (NNLL) accuracy using two-loop soft anomalous dimensions. The expansion of the resummed cross section yields approximate next-to-next-to-leading order (NNLO) cross sections. Numerical results for t-channel single top quark (or single antitop) production at the Tevatron and the LHC are presented, including the dependence of the cross sections on the top quark mass, and the uncertainties from scale variation and parton distributions. Combined results for all single top quark production channels are also given.

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