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Title: Photopion Production at Higher Energies

Abstract

Photopion production from a nucleon target is a fundamental process that is essential for studies of high-energy photoreactions in nuclei and for the study of quark models in the high energy regime. The approved JLAB experiment E94-104 uses a 6 GeV beam to investigate the constituent quark counting rule for the gamma n --> pi{sup -} p differential cross section. This measurement can be extended to 8 GeV as JLAB energies are upgraded. Quark model predictions for the momentum dependence of the ratio of pi{sup -} to pi{sup +} photoproduction from the nucleon make their relative cross-section an important observable to investigate at high energies. Not only will it provide a decisive test of pion photoproduction models, but it is an excellent means of investigating the transition from a description based on nucleon-meson degrees of freedom to a QCD-based description in terms of quark-gluon degrees of freedom.

Authors:
;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
841734
Report Number(s):
JLAB-PHY-98-63; DOE/ER/40150-3498
TRN: US0502774
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Conference
Resource Relation:
Conference: Jefferson Lab Physics & Instrumentation with 6-12 GeV Beams, Newport News, VA (US), 06/15/1998--06/18/1998; Other Information: PBD: 1 Jun 1998
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DEGREES OF FREEDOM; DIFFERENTIAL CROSS SECTIONS; NUCLEI; NUCLEONS; PHOTOPRODUCTION; PHYSICS; PIONS; PRODUCTION; QUARK MODEL; QUARKS; TARGETS

Citation Formats

Gao, H, and Black, T. Photopion Production at Higher Energies. United States: N. p., 1998. Web.
Gao, H, & Black, T. Photopion Production at Higher Energies. United States.
Gao, H, and Black, T. Mon . "Photopion Production at Higher Energies". United States. https://www.osti.gov/servlets/purl/841734.
@article{osti_841734,
title = {Photopion Production at Higher Energies},
author = {Gao, H and Black, T},
abstractNote = {Photopion production from a nucleon target is a fundamental process that is essential for studies of high-energy photoreactions in nuclei and for the study of quark models in the high energy regime. The approved JLAB experiment E94-104 uses a 6 GeV beam to investigate the constituent quark counting rule for the gamma n --> pi{sup -} p differential cross section. This measurement can be extended to 8 GeV as JLAB energies are upgraded. Quark model predictions for the momentum dependence of the ratio of pi{sup -} to pi{sup +} photoproduction from the nucleon make their relative cross-section an important observable to investigate at high energies. Not only will it provide a decisive test of pion photoproduction models, but it is an excellent means of investigating the transition from a description based on nucleon-meson degrees of freedom to a QCD-based description in terms of quark-gluon degrees of freedom.},
doi = {},
url = {https://www.osti.gov/biblio/841734}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {6}
}

Conference:
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