Small $P_{\perp }^2$ Elastic Proton-Proton Polarization near 300 GeV

Abstract

Using two hopefully reasonable assumptions plus existing data on the analyzing power in high energy proton-proton elastic scattering, we estimate that the hadronic helicity-flip amplitude at $P_{\perp }^2$ of 0.003 (GeV/c)${}^2$ is neglible near 300 GeV. This would allow the absolute calibration of a CNI polarimeter.

Comments: 4 pages, latex, no figures, talk given at Workshop on High Energy Polarimeters, Amsterdam, September 9, 1996