Regular Article - Theoretical Physics
Parity nonconservation in deuteron photoreactions
Department of Physical Sciences, University of Helsinki, P. O. Box 64, FIN-00014, Helsinki, Finland
Accepted: 18 March 2011
Published online: 22 April 2011
We calculate the asymmetries in parity-nonconserving deuteron photodisintegration due to circularly polarized photons with the photon laboratory energy ranging from the threshold up to 10MeV and the radiative capture of thermal polarized neutrons by protons . We use the leading-order electromagnetic Hamiltonian neglecting the smaller nuclear exchange currents. Comparative calculations are done by using the Reid93 and Argonne v18 potentials for the strong interaction and the DDH and FCDH “best” values for the weak couplings in a weak one-meson exchange potential. A weak NΔ transition potential is used to incorporate also the Δ(1232) -isobar excitation in the coupled-channels formalism.
© SIF, Springer-Verlag Berlin Heidelberg, 2011