Pith. sign in

REVIEW 4 cited by

Improved Measurement of the $\bar d / \bar u$ Asymmetry in the Nucleon Sea

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv hep-ex/0103030 v1 pith:3BE6L2UO submitted 2001-03-20 hep-ex

FNAL E866/NuSea Collaboration: R. S. Towell , P. L. McGaughey , et al This is my paper · ORCID
classification hep-ex
keywords dataresultsdrell-yanmeasurementsprotonratioanti-downanti-up
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

Measurements of the ratio of Drell-Yan yields from an 800 \rm{GeV/c} proton beam incident on liquid hydrogen and deuterium targets are reported. Approximately 360,000 Drell-Yan muon pairs remained after all cuts on the data. From these data, the ratio of anti-down ($\bar{d}$) to anti-up ($\bar{u}$) quark distributions in the proton sea is determined over a wide range in Bjorken-$x$. These results confirm previous measurements by E866 and extend them to lower $x$. From these data, $(\bar{d}-\bar{u})$ and $\int(\bar{d}-\bar{u})dx$ are evaluated for $0.015<x<0.35$. These results are compared with parameterizations of various parton distribution functions, models and experimental results from NA51, NMC, and HERMES.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Pentaquarks made of light quarks and their admixture to baryons

    hep-ph 2025-07 conditional novelty 6.0 of 10

    Light pentaquark wavefunctions are constructed from permutation symmetry, and a nucleon-pentaquark mixing model yields a five-quark Fock probability P5q of order 0.4.

  2. New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC

    hep-ph 2019-12 unverdicted novelty 5.0 of 10

    New CT18 PDFs at NLO and NNLO from global fit to HERA plus LHC jet, Drell-Yan, top-pair and Z data, with Hessian errors, Lagrange-multiplier studies, and alternate sets for data tensions and scale choices.

  3. Phenomenological extraction of fragmentation functions in a $p\bar{p}$ environment

    hep-ph 2026-07 conditional novelty 4.5 of 10

    Kinematic cuts in Tevatron p-pbar photon-hadron production make cross-section ratios of kaons to pions approximate u-quark fragmentation-function ratios, enabling flavour-separated FF constraints.

  4. Updates of PDFs in the MMHT framework

    hep-ph 2019-07 unverdicted novelty 3.0 of 10

    The paper reports incremental updates to MMHT PDFs with emphasis on strange quark extraction from improved NNLO cross sections, extended parameterization, and correlated uncertainty treatment.

Pith tools