Strange sea determination from collider data

TL;DR

This paper analyzes the strange sea quark distribution in the nucleon using LHC data, focusing on the impact of different parameterizations and data combinations to improve understanding of nucleon structure.

Contribution

It introduces a detailed analysis of strange sea determination from collider data, exploring various parameterizations and data combinations to enhance accuracy.

Findings

Different parameterizations significantly affect strange sea estimates.

Combining multiple data sets improves the precision of strange sea measurements.

Comparison with earlier determinations highlights areas for future improvement.

Abstract

We consider determinations of the strange sea in the nucleon based on the QCD analyses of data collected at the LHC with focus on the recent high-statistics ATLAS measurement of the $W^\pm$- and $Z$-boson production. We study the effect of different functional forms for parameterization of the parton distribution functions and the combination of various data sets in the analysis. We compare to earlier strange sea determinations and discuss ways to improve them in the future.