English

Light quark and antiquark constraints from new electroweak data

High Energy Physics - Phenomenology 2023-07-13 v1 High Energy Physics - Experiment Nuclear Theory

Abstract

We present a new parton distribution function analysis which includes new data for W boson production in proton-proton collisions and lepton pair production in proton-proton and proton-deuteron collisions. The new data provide strong constraints on the light antiquark parton distribution functions in the proton. We identify an interesting correlation between the d/ud/u ratio and the dˉ/uˉ\bar{d}/\bar{u} ratio which leads to a modification of our previous results for the d/ud/u ratio as the parton momentum fraction x1.x \rightarrow 1.

Keywords

Cite

@article{arxiv.2303.11509,
  title  = {Light quark and antiquark constraints from new electroweak data},
  author = {Alberto Accardi and Xiaoxian Jing and Joseph Francis Owens and Sanghwa Park},
  journal= {arXiv preprint arXiv:2303.11509},
  year   = {2023}
}
R2 v1 2026-06-28T09:25:18.993Z