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Measurement of proton-proton elastic scattering at 6 GeV/c in polarized initial and final spin states

Journal Article · · Phys. Rev., D; (United States)
The differential elastic p-p scattering cross section was measured at 6 GeV/c at the Argonne Zero Gradient Synchrotron in the range P/sub m/n = 0.60--1.0 (GeV/c)/sup 2/ using a 65% polarized target and a 75% polarized proton beam of intensity 3 x 10/sup 9/ protons/pulse. The polarization of the recoil proton was simul- taneously measured with a well calibrated carbon-target polarimeter. All three polarizations were measured perpendicular to the horizontal scattering plane. Our results indicate that P and T invariance are both obeyed to good precision even at our largest P/sub m/n/sup 2/. Parity invariance implies that the eight single-flip transversity cross sections are zero, so our data gives the magnitudes of the eight remaining pure spin cross sections where all spins are measured. We find that the four double-flip transversity cross sections are nonzero.
Research Organization:
CERN, Geneva 23, Switzerland
OSTI ID:
5086977
Journal Information:
Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 17:1; ISSN PRVDA
Country of Publication:
United States
Language:
English