Threshold Resummation for WZ and ZZ Pair Production at the LHC

TL;DR

This paper performs threshold resummation for WZ and ZZ pair production at the LHC, improving theoretical predictions by increasing cross sections and reducing uncertainties, aligning well with experimental data.

Contribution

It introduces NNLL threshold resummation in SCET for WZ and ZZ production, providing more accurate cross section estimates at LHC energies.

Findings

Resummation increases ZZ cross section by ~7%.

Resummation increases WZ cross section by ~12%.

Scale uncertainties are significantly reduced.

Abstract

We perform the threshold resummation for WZ and ZZ pair production at the next-to-next-to-leading logarithmic accuracy in Soft-Collinear Effective Theory at the LHC. Our results show that the resummation effects increase the total cross sections by about 7% for ZZ production and 12% for WZ production with$\sqrt{S}= 7,~8,~13 and 14 TeV, respectively, and the scale uncertainties are significantly reduced. Besides, our numerical results are well consistent with experimental data reported by the ATLAS and CMS collaborations.