Parity nonconservation in proton-water scattering at 1.5 GeV/c

Abstract
A search has been made for parity nonconservation in the scattering of 1.5-GeV/c (800-MeV) polarized protons from an unpolarized water target. The result for the longitudinal asymmetry is AL=(1.7±3.3±1.4)×107, where the second uncertainty is an estimate of systematic effects. This result is significantly smaller than the value of AL for H2O reported at 6 GeV/c.