QCD threshold corrections to di-lepton and Higgs rapidity distributions beyond N${}^2$LO

Details QCD threshold corrections to di-lepton and Higgs rapidity distributions beyond N${}^2$LO QCD threshold corrections to di-lepton and Higgs rapidity distributions beyond N${}^2$LO

2006-08-29

arxiv.org/abs/hep-ph/0608308v1

Nucl.Phys.B767:100-129,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

1+34 pages, four plots

Scientific paper

10.1016/j.nuclphysb.2007.01.005

We present threshold enhanced QCD corrections to rapidity distributions of di-leptons in the Drell-Yan process and of Higgs particles in both gluon fusion and bottom quark annihilation processes using Sudakov resummed cross sections. We have used renormalisation group invariance and the mass factorisation theorem that these hard scattering cross sections satisfy as well as Sudakov resummation of QCD amplitudes. We find that these higher order threshold QCD corrections stabilise the theoretical predictions under scale variations.

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