VV Resummation To NNLO+NNLL At the LHC

TL;DR

This paper provides NNLO+NNLL resummed predictions for vector boson pair production at the LHC, reducing theoretical uncertainties and refining cross-section estimates.

Contribution

It introduces threshold resummation at NNLL accuracy matched with NNLO calculations for ZZ and WW production at the LHC, improving prediction precision.

Findings

Reduced scale uncertainties after resummation

Resummed corrections add a few percent to fixed order results

Enhanced theoretical accuracy for vector boson pair production

Abstract

We present the resummed predictions for a vector boson pair production at the LHC. We have performed threshold resummation to next-to-next-to-leading logarithmic (NNLL) accuracy, and then matched them to next-to-next-to-leading order (NNLO) QCD results. After resummation, we observe a reduction in the scale uncertainties arising from unphysical renormalization and factorization scales. We find that the resummed corrections add a few per cent to the fixed order results for both ZZ and WW production.