Photopion Production at Higher Energies [electronic resource].
- Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 1998.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 186.8 Kilobytes pages : digital, PDF file
- Additional Creators:
- Thomas Jefferson National Accelerator Facility (U.S.)
United States. Department of Energy. Office of Energy Research
United States. Department of Energy. Office of Scientific and Technical Information
- 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⁻ 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⁻ to pi⁺ 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.
- Published through SciTech Connect.
Jefferson Lab Physics & Instrumentation with 6-12 GeV Beams, Newport News, VA (US), 06/15/1998--06/18/1998.
T. Black; H. Gao.
- Funding Information:
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