Radiative corrections to W-boson hadroproduction: higher-order electroweak and supersymmetric effects

Abstract

The high accuracy envisaged for future measurements of W-boson production at hadron colliders has to be matched by precise theoretical predictions. We study the impact of electroweak radiative corrections on W-boson production cross sections and differential distributions at the Tevatron and at the LHC. In particular, we include photon-induced processes, which contribute at O(alpha), and leading radiative corrections beyond O(alpha) in the high-energy Sudakov regime and from multi-photon final-state radiation. We furthermore present the calculation of the complete supersymmetric next-to-leading-order electroweak and QCD corrections to W-boson hadroproduction within the MSSM. The supersymmetric corrections turn out to be negligible in the vicinity of the W resonance in general, reaching the percent level only at high lepton transverse momentum and for specific choices of the supersymmetric parameters.

30 pages, 10 figures, 2 new sections, including a comparison with previous results on multi-photon radiation; version published in PRD

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• Electroweak corrections to hadronic production of W bosons at large transverse momenta
• Threshold corrections to rapidity distributions of Z and W^\pm bosons beyond N^2 LO at hadron colliders
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Cited by in corpus (2)

• Polarized QED splittings of massive fermions and dipole subtraction for non-collinear-safe observables
• Higgs Physics at the LHC: Some Theory Aspects