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arXiv · 2303.11509

Light quark and antiquark constraints from new electroweak data

Alberto Accardi·Xiaoxian Jing·Joseph Francis Owens·Sanghwa Park
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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 $d/u$ ratio and the $\bar{d}/\bar{u}$ ratio which leads to a modification of our previous results for the $d/u$ ratio as the parton momentum fraction $x \rightarrow 1.$

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Alberto Accardi, Xiaoxian Jing, Joseph Francis Owens, Sanghwa Park. 2023-03-21. Light quark and antiquark constraints from new electroweak data. https://doi.org/10.1103/physrevd.107.113005

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