# The transverse momentum spectrum of weak gauge bosons at N$^3$LL+NNLO

## TL;DR

This paper provides precise QCD predictions for the transverse momentum spectrum of electroweak gauge bosons at the LHC, combining NNLO calculations with N3LL resummation, reducing uncertainties and revealing stable ratios between related processes.

## Contribution

It introduces a combined NNLO and N3LL approach for accurate pT spectrum predictions of gauge bosons at 13 TeV LHC, improving precision and understanding of process ratios.

## Key findings

- Higher order corrections significantly alter the pT distribution shape.
- Residual uncertainties are reduced to a few percent across the spectrum.
- Ratios of charged- and neutral-current Drell-Yan pT distributions are highly stable.

## Abstract

We present accurate QCD predictions for the transverse momentum pT spectrum of electroweak gauge bosons at the LHC for 13 TeV collisions, based on a consistent combination of a NNLO calculation at large pT and N3LL resummation in the small pT limit. The inclusion of higher order corrections leads to substantial changes in the shape of the differential distributions, and the residual perturbative uncertainties are reduced to the few percent level across the whole transverse momentum spectrum. We examine the ratio of pT distributions in charged- and neutral-current Drell-Yan production, and study different prescriptions for the estimate of perturbative uncertainties that rely on different degrees of correlation between these processes. We observe an excellent stability of the ratios with respect to the perturbative order, indicating a strong correlation between the corresponding QCD corrections.