Abstract
Parity nonconservation (PNC) was studied in $p$-wave neutron resonances of ${}^{103}\mathrm{Rh}$ in the neutron energy range 30 to 490 eV. The helicity dependence of the neutron total cross section of rhodium was determined by capture measurements with the time-of-flight method at the Manuel Lujan Neutron Scattering Center at the Los Alamos National Laboratory. A total of 32 $p$-wave resonances were studied and statistically significant longitudinal asymmetries were observed for resonances at ${E}_{n}=44.5,$ 110.8, 321.6, and 432.9 eV. A statistical analysis treating the PNC matrix elements as random variables yields a weak spreading width ${\ensuremath{\Gamma}}_{w}{=(1.42}_{\ensuremath{-}0.59}^{+1.21})\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}7}\mathrm{eV}.$
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
