LHC data and the proton strangeness

TL;DR

This paper discusses how LHC measurements of W and Z bosons inform the strange quark distribution in the proton, highlighting computational advances for integrating LHC data into PDF analyses.

Contribution

It introduces computational methods for efficiently incorporating LHC W and Z data into the NNPDF framework at NLO, improving constraints on proton strangeness.

Findings

LHC W and Z data provide significant constraints on proton strangeness.

New computational developments enable consistent NLO inclusion of LHC data.

Enhanced understanding of the strange quark distribution in the proton.

Abstract

The LHC has already provided many relevant measurements for the determination of parton distribution functions (PDFs). Measurements of the W and Z lepton distributions are of interest for flavor separation and in particular for the determination of the relatively poorly constrained strange quark distribution. In this contribution we shall discuss the computational developments that allow for the efficient inclusion of LHC data into the NNPDF framework consistently at NLO for all observables, and we study the constraints of the LHC W and Z data on the strangeness content of the proton.