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Forward-angle elastic and quasielastic proton-nucleon cross sections and analyzing powers at 0. 8 GeV

Journal Article · · Phys. Rev. C; (United States)
Using a liquid deuterium target, 800 MeV quasielastic p+n and p+p analyzing powers were measured over the center-of-momentum angular range 14/sup 0/--75/sup 0/. Elastic p+p analyzing powers were measured over the center-of-momentum angular range 10/sup 0/--47/sup 0/ using a liquid hydrogen target, and elastic p+p differential cross sections were obtained over the angular range 6/sup 0/--90/sup 0/ using CH and CH/sub 2/ targets. The quasielastic p+p data are in good agreement with existing elastic p+p data, suggesting that the effects of final state interactions and Fermi motion averaging are small at this energy for the range of momentum transfer covered by these data. Results of phase shift analyses are reported, and the amplitudes important to microscopic analysis of 800 MeV p+nucleus elastic differential cross section and analyzing power data are discussed. Use of these amplitudes to generate the microscopic Kerman-McManus-Thaler optical potential for 800 MeV p+ /sup 40/Ca elastic scattering does not resolve the problems encountered previously concerning nuclear size information and poor fits to the analyzing power data.
Research Organization:
Department of Physics, The University of Texas at Austin, Austin, Texas 78712
OSTI ID:
6236071
Journal Information:
Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 27:2; ISSN PRVCA
Country of Publication:
United States
Language:
English