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.
@article{arxiv.0710.3309,
title = {Radiative corrections to W-boson hadroproduction: higher-order electroweak and supersymmetric effects},
author = {Silja Brensing and Stefan Dittmaier and Michael Krämer and Alexander Mück},
journal= {arXiv preprint arXiv:0710.3309},
year = {2008}
}
Comments
30 pages, 10 figures, 2 new sections, including a comparison with previous results on multi-photon radiation; version published in PRD