Threshold resummation at NLL accuracy and soft-virtual cross sections at NLO
arXiv:1405.4827 · doi:10.1016/j.nuclphysb.2014.09.012
Abstract
We consider QCD radiative corrections to the production of colourless high-mass systems in hadron collisions. We show that the recent computation of the soft-virtual corrections to Higgs boson production at NLO [1] together with the universality structure of soft-gluon emission can be exploited to extract the general expression of the hard-virtual coefficient that contributes to threshold resummation at NLL accuracy. The hard-virtual coefficient is directly related to the process-dependent virtual amplitude through a universal (process-independent) factorization formula that we explicitly evaluate up to three-loop order. As an application, we present the explicit expression of the soft-virtual NLO corrections for the production of an arbitrary colourless system. In the case of the Drell-Yan process, we confirm the recent result of Ref.[2].
Slightly expanded text, one reference added, version published on NPB
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- Resummed inclusive cross-section in Randall-Sundrum model at NNLO+NNLL
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- Selected topics on multi-loop calculations to Higgs boson properties and renormalization group functions