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

TL;DR

This paper provides precise theoretical predictions for W-boson production at hadron colliders by calculating electroweak and supersymmetric radiative corrections, including photon-induced processes and high-energy effects, to match future experimental accuracy.

Contribution

It introduces the first comprehensive calculation of supersymmetric electroweak and QCD corrections to W-boson hadroproduction within the MSSM, including photon-induced processes and high-energy effects.

Findings

Electroweak corrections significantly affect W-boson production cross sections.

Supersymmetric corrections are negligible near the W resonance.

Corrections become relevant at high lepton transverse momentum.

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.