Searching for Parity Nonconservation in ¹⁰B Nucleus

摘要

The γ-circular polarization (P_γ) and asymmetries (A_γ) of the parity forbidden M1 + E2 γ-decays: ¹⁰B^? →¹⁰B^? as well as the PNC analyzing powers for resonance reaction populating the parity doublet at 7.47 MeV have been investigated theoretically. We use the recently proposed Warburton–Brown shell model interaction. For the weak forces we discus comparatively different weak interaction models based on different assumptions for evaluating the weak meson–hadron coupling constants. The results determine a range of P_γ-values from which we find the most probable values: P_γ = 3.7 × 10^?4 for the 5.11 MeV doublet and A_L(b) ≈ 0.6 × 10^?5 for the 7.47 MeV doublet. These cases seem to be promising for further experimental tests of parity nonconservation in nuclei.