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A Reevaluation of the Gottfried sum

Collaboration
Jul, 1993
5 pages
Published in:
  • Phys.Rev.D 50 (1994) R1-R3
  • Published: Jul 1, 1994
DOI:
Report number:
  • CERN-PPE-94-32,
  • CERN-PPE-94-032,
  • CERN-PPE-93-117
Experiments:
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Abstract: (APS)
We present a new determination of the nonsinglet structure function F2p{\mathit{F}}_{2}^{\mathit{p}} - F2n{\mathit{F}}_{2}^{\mathit{n}} at Q2{\mathit{Q}}^{2}=4 GeV2{\mathrm{GeV}}^{2} using recently measured values of F2d{\mathit{F}}_{2}^{\mathit{d}} and F2n{\mathit{F}}_{2}^{\mathit{n}}/F2p{\mathit{F}}_{2}^{\mathit{p}}. A new evaluation of the Gottfried sum is given, which remains below the simple quark-parton model value of 1/3.
Note:
  • Revised version of CERN-PPE-93-117
  • p: structure function
  • n: structure function
  • deuteron: structure function
  • structure function: x-dependence
  • structure function: difference
  • structure function: ratio
  • sum rule: Gottfried
  • model: quark parton
  • radiative correction
  • numerical calculations: interpretation of experiments