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

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

Research output: Contribution to journalArticle

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 1992

Fingerprint

baryons
inelastic scattering
pions
form factors
mesons
protons
fragmentation
cut-off
strings
quarks

Keywords

  • 13.15.Dk
  • 13.60.Hb

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

The pion contribution to semi-inclusive deep inelastic scattering with slow baryons in the final state. / Korpa, C.; Dieperink, A. E L; Scholten, O.

In: Zeitschrift für Physik A Hadrons and Nuclei, Vol. 343, No. 4, 12.1992, p. 461-466.

Research output: Contribution to journalArticle

@article{5481976f11fe409b925b0723160660be,
title = "The pion contribution to semi-inclusive deep inelastic scattering with slow baryons in the final state",
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.",
keywords = "13.15.Dk, 13.60.Hb",
author = "C. Korpa and Dieperink, {A. E L} and O. Scholten",
year = "1992",
month = "12",
doi = "10.1007/BF01289823",
language = "English",
volume = "343",
pages = "461--466",
journal = "European Physical Journal A",
issn = "1434-6001",
publisher = "Springer New York",
number = "4",

}

TY - JOUR

T1 - The pion contribution to semi-inclusive deep inelastic scattering with slow baryons in the final state

AU - Korpa, C.

AU - Dieperink, A. E L

AU - Scholten, O.

PY - 1992/12

Y1 - 1992/12

N2 - 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.

AB - 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.

KW - 13.15.Dk

KW - 13.60.Hb

UR - http://www.scopus.com/inward/record.url?scp=0011652984&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0011652984&partnerID=8YFLogxK

U2 - 10.1007/BF01289823

DO - 10.1007/BF01289823

M3 - Article

VL - 343

SP - 461

EP - 466

JO - European Physical Journal A

JF - European Physical Journal A

SN - 1434-6001

IS - 4

ER -