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Light quark and antiquark constraints from new electroweak data

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arxiv 2303.11509 v1 pith:H6FFWZN4 submitted 2023-03-21 hep-ph hep-exnucl-th

Alberto Accardi , Xiaoxian Jing , Joseph Francis Owens , Sanghwa Park This is my paper · ORCID
classification hep-phhep-exnucl-th
keywords datapartonratioantiquarkcollisionsconstraintsdistributionlight
verification ladder T0 review T1 audit T2 compute T3 formal
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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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Cited by 4 Pith papers

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    hep-lat 2026-07 conditional novelty 6.0 of 10

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  3. Parton distributions confront LHC Run II data: a quantitative appraisal

    hep-ph 2025-01 conditional novelty 6.0 of 10

    A systematic NNLO data-theory comparison shows that the main PDF sets generalise to unseen LHC and HERA data about equally well once PDF, alpha_s, and missing higher order uncertainties are included.

  4. NNLO Determination of Polarized Parton Distribution Functions with Higher-Twist and Target-Mass Corrections

    hep-ph 2026-07 accept novelty 4.0 of 10

    KLS26 is an NNLO polarized PDF set from inclusive DIS that includes TMC, additive and multiplicative higher-twist terms, and positivity, with the largest NNLO shifts in the strange-quark helicity distribution.

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