Electroweak corrections to dilepton + jet production at hadron colliders

TL;DR

This paper presents the first comprehensive calculation of electroweak corrections to Z-boson plus jet production at hadron colliders, including leptonic decays, off-shell effects, and photon contributions, with results applicable to LHC and Tevatron energies.

Contribution

It introduces the first NLO electroweak correction calculation for Z+jet production with leptonic decays, incorporating off-shell effects and photon contributions, implemented in a flexible Monte Carlo framework.

Findings

Electroweak corrections significantly affect cross sections and distributions.

The calculation includes off-shell and photon contributions for realistic predictions.

Results are provided for both Tevatron and LHC energies.

Abstract

The first calculation of the next-to-leading-order electroweak corrections to Z-boson + jet hadroproduction including leptonic Z-boson decays is presented, i.e. to the production of a charged lepton--anti-lepton final state in association with one hard jet at the LHC and the Tevatron. The Z-boson resonance is treated consistently using the complex-mass scheme, and all off-shell effects as well as the contributions of the intermediate photon are taken into account. The corresponding next-to-leading-order QCD corrections have also been recalculated. The full calculation is implemented in a flexible Monte Carlo code. Numerical results for cross sections and distributions of this Standard Model benchmark process are presented for the Tevatron and the LHC.