Parity Violation in Proton-Proton Scattering at 221 MeV
Abstract
The parity-violating longitudinal analyzing power, Az, has been measured in pp elastic scattering at an incident proton energy of 221 MeV. The result obtained is Az =(0.84 +/- 0.29 (stat.) +/- 0.17 (syst.)) x 10-7. This experiment is unique in that it selects a single parity violating transition amplitude, 3P2-1D2, and consequently directly constrains the weak meson-nucleon coupling constant hpprho When this result is taken together with the existing pp parity violation data, the weak meson-nucleon coupling constants hpprho and hppomega can, for the first time, both be determined.
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