Parity violation in proton-proton scattering at 221 MeV

TRIUMF experiment 497 has measured the parity-violating longitudinal analyzing power A_z in p→p elastic scattering at 221.3 MeV incident proton energy. This comprehensive paper includes details of the corrections, some of magnitude comparable to A_z itself, required to arrive at the final result. The largest correction was for the effects of first moments of transverse polarization. The addition of the result, A_z=[0.84±0.29 (stat.)±0.17 (syst.)]×10^-7, to the p→p parity-violation experimental data base greatly improves the experimental constraints on the weak meson-nucleon coupling constants h_ρ^pp and h_ω^pp, and also has implications for the interpretation of electron parity-violation experiments.