Parity violation in neutron resonances of 117 Sn
Copyright held by American Physical Society. First published as DA Smith et al, Parity violation in neutron resonances of 117Sn, Physical Review C, 64, 015502 , doi: 10.1103/PhysRevC.64.015502.
Parity nonconservation (PNC) has been studied in neutron p-wave resonances of 117Sn. The longitudinal asymmetries were measured for 29 p-wave resonances in the neutron energy range 0.8 eV to 1100 eV. Statistically significant PNC effects were observed for four resonances. A statistical analysis determined the rms weak mixing matrix element and the weak spreading width. A weak spreading width of Γw=(0.28-0.15+0.56)×10-7 eV was obtained for117Sn.