Factorization and resummation of s-channel single top quark production

Abstract

In this paper we study the factorization and resummation of s-channel single top quark production in the Standard Model at both the Tevatron and the LHC. We show that the production cross section in the threshold limit can be factorized into a convolution of hard function, soft function and jet function via soft-collinear-effective-theory (SCET), and resummation can be performed using renormalization group equation in the momentum space resummation formalism. We find that in general, the resummation effects enhance the Next-to-Leading-Order (NLO) cross sections by about $3$ at both the Tevatron and the LHC, and significantly reduce the factorization scale dependence of the total cross section at the Tevatron, while at the LHC we find that the factorization scale dependence has not been improved, compared with the NLO results.

29 pages, 7 figures; version published in JHEP

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Cited by in corpus (8)

• Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production
• On the NNLO QCD corrections to single-top production at the LHC
• Off-shell effects for t-channel and s-channel single-top production at NLO in QCD
• Renormalization group improved predictions for $t\bar{t}{W}^{\pm }$ production at hadron colliders
• Resummation prediction on top quark transverse momentum distribution at large pT
• Momentum-space threshold resummation in $tW$ production at the LHC
• NNLL momentum-space threshold resummation in direct top quark production at the LHC
• Resummation for $s$-channel single-top production