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Holt, R.J. Schulte, Elaine Carol 2012-06-07T17:27:40Z 2012-06-07T17:27:40Z 10000-01-01 2002 New measurements of the high energy deutron photodisintegration differential cross section were made at the Thomas Jefferson National Accelerator Facility in Newport News, Virginia. Two experiments were performed. Experiment E96-003 was performed in experimental Hall C. The measurements were designed to extend the highest energy differential cross section values to 5.5 GeV incident photon energy at forward angles. This builds upon previous high energy measurements in which scaling consistent with the pQCD constituent counting rules was observed at 90° and 70° in the center of mass. From the new measurements, a threshold for the onset of constituent counting rule scaling seems present at transverse momentum approximately 1.3 GeV/c. The second experiment, E99-008, was performed in experimental Hall A. The measurements were designed to explore the angular distribution of the differential cross section at constant energy. The measurements were made symmetric about 90° in the center of mass. The results, which are neither consistent with meson exchange nor quark-exchange, remain puzzling. Submitted by Elizabeth Kent (eckent2@illinois.edu) on 2012-06-07T17:27:40Z No. of bitstreams: 1 2002_schulte.pdf: 8174082 bytes, checksum: 538fce73c481e18e787e9a626cb72e4b (MD5) Made available in DSpace on 2012-06-07T17:27:40Z (GMT). No. of bitstreams: 1 2002_schulte.pdf: 8174082 bytes, checksum: 538fce73c481e18e787e9a626cb72e4b (MD5) Previous issue date: 2002 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Elizabeth Kent (eckent2@illinois.edu) on 2012-06-07T17:27:40Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:34:32-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: thesis thesis U of I Only 4591828 http://hdl.handle.net/2142/31384 en ©2002 Elaine Carol Schulte deutron photodisintegration High Energy Measurements of the Deuteron Photodisintegration Differential Cross Section Dissertation / Thesis text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.