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Measurement of proton--proton elastic scattering in pure initial spin states at 11. 75 GeV/c. [Differential cross sections, asymmetry]

Conference · · AIP (Am. Inst. Phys.) Conf. Proc.; (United States)
OSTI ID:7259315
The elastic differential cross section for proton proton scattering at 11.75 GeV/c was measured for the up, down, and mixed initial spin states perpendicular to the scattering plane in the range of p/sup 2//sub perpendicular to/ = 0.6 ..-->.. 2.2 (GeV/c)/sup 2/. The experiment was performed at the Argonne ZGS using a 50 percent polarized beam and a 65 percent polarized target. It was confirmed that the asymmetry parameter, A, decreases with energy in the diffraction peak, but is approximately energy-independent at large p/sup 2//sub perpendicular to/. It was found that the spin correlation parameter C/sub nn/ acquires rather dramatic structure, and at large p/sup 2//sub perpendicular to/ seems to grow with energy.
Research Organization:
Univ. of Michigan, Ann Arbor
OSTI ID:
7259315
Conference Information:
Journal Name: AIP (Am. Inst. Phys.) Conf. Proc.; (United States) Journal Volume: 12
Country of Publication:
United States
Language:
English