$W^+W^-$ production in Large extra dimension model at next-to-leading order in QCD at the LHC

TL;DR

This paper calculates next-to-leading order QCD corrections for W+W- production in the ADD large extra dimension model at the LHC, showing significant impact on observables and reduced scale uncertainties.

Contribution

It provides the first detailed NLO QCD analysis of W+W- production in the ADD model, including all subprocesses and kinematic distributions.

Findings

QCD corrections significantly affect distributions

Reduction in factorization scale uncertainty

Enhanced precision for new physics searches

Abstract

We present next-to-leading order QCD corrections to production of two $W$ bosons in hadronic collisions in the extra dimension ADD model. Various kinematical distributions are obtained to order $\alpha_s$ in QCD by taking into account all the parton level subprocesses. We estimate the impact of the QCD corrections on various observables and find that they are significant. We also show the reduction in factorization scale uncertainty when ${\cal O}(\alpha_s)$ effects are included.