Next-to-leading order QCD corrections to the $Z$ boson pair production at the LHC in Randall Sundrum model

TL;DR

This paper presents the first calculation of next-to-leading order QCD corrections for Z boson pair production at the LHC within the Randall-Sundrum model, highlighting significant effects on observables and reduced theoretical uncertainties.

Contribution

It provides the first NLO QCD correction calculations for Z boson pair production in the Randall-Sundrum model, including all subprocesses and kinematic distributions.

Findings

QCD corrections significantly affect observables

Inclusion of NLO reduces factorization scale uncertainty

Kinematic distributions are obtained at order α_s

Abstract

The first results on next-to-leading order QCD corrections to production of two $Z$ bosons in hadronic collisions in the extra dimension model of Randall and Sundrum are presented. 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.