The pion contribution to semi-inclusive deep inelastic scattering with slow baryons in the final state

C. L. Korpa, A. E.L. Dieperink, O. Scholten

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7 Citations (Scopus)

Abstract

We analyze the pion-exchange contribution to semi-inclusive leptoproduction on protons, with a slow nucleon or delta in the final state. We calculate the crosssection for slow protons including also the effect of the delta intermediate state, which is the dominant contribution. A comparison with recent experiment shows reasonable agreement for small Bjorken x, if the cut-off in the pion-nucleon-delta form-factor is chosen to be around 0.7 GeV. This substantiates the recent conjecture that sea-quark distributions can be completely associated with the meson cloud, but suggests that the pion-nucleon-delta form-factor should be softer than the one used in description of nuclear forces by meson exchange. We also compare the pion-exchange and the string-fragmentation models and point out possible future experimental tests.

Original languageEnglish
Pages (from-to)461-466
Number of pages6
JournalZeitschrift für Physik A Hadrons and Nuclei
Volume343
Issue number4
DOIs
Publication statusPublished - Dec 1 1992

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Keywords

  • 13.15.Dk
  • 13.60.Hb

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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