Radiattonal capture of neutrons by deuterons n + d ?3H + ? and P-odd nuclear forces

Abstract

P-odd polarizational phenomena are considered in the radiative capture of neutrons by deuterons: n + d →3H + γ. It is shown that, in the general case, 18 different P-odd asymmetries of the angular distribution of γ quanta arise in the collision of arbitrarily polarized neutrons with a deuteron target characterized by vector and tensor polarizations. The P-odd contribution to the density matrix of the λ quanta formed in the capture of polarized neutrons by unpolarized deuterons is determined by eight real structural functions, while the P-odd dependence of the Stokes parameters of the photons on the tensor polarization of the deuterons is characterized, in the general case, by ten structural functions. In slow-neutron capture, the number of P-odd correlations is reduced.