Selected Parity Violation Experiments

الأصل · EN

I start by reviewing existing pp measurements with particular emphasis on the recent 221 MeV pp measurement at TRIUMF which permitted the weak meson-nucleon coupling constants hppρ and hppω to be determined separately for the first time. I then review np experiments, with specific details of the np → dγ experiment now under preparation at Los Alamos National Laboratory. This experiment will provide a clean measurement of the weak pion nucleon coupling, fπ. Finally, I discuss ep parity violation experiments, particularly the Gzero experiment under way at Jefferson Lab in Virginia. This experiment will measure the weak form factors Gₑᶻ and Gₘᶻ, allowing the distribution of strange quarks in the quark sea to be determined.