Analyzing-power measurements of Coulomb-nuclear interference with the polarized-proton and-antiproton beams at 185 GeV/c

The analyzing power AN of proton-proton, proton-hydrocarbon, and antiproton-hydrocarbon, scattering in the Coulomb-nuclear interference region has been measured using thhe 185 GeV/c Fermilab polarized-proton and-antiproton beams. The results are found to be consistent with theoretical predictions within statistical uncertainties.