Weak parity-nonconserving potentials and circular polarization ofn−pcapture gamma rays

Employing different models of the weak parity-violating vector-meson exchange potentials and three versions of the parity-conserving nucleon-nucleon potentials, namely Hamada-Johnston, Yale, and modified Yale, the circular polarization of the $n-p$ capture $\gamma$ rays is calculated and compared with the observed value.