C. Gautherin et al., NEW ISOMERIC STATES IN ND-152,ND-154,ND-156 PRODUCED BY SPONTANEOUS FISSION OF CF-252, EUROPEAN PHYSICAL JOURNAL A-HADRONS AND NUCLEI, 1(4), 1998, pp. 391-397
Isomeric states have been observed in fission-fragments produced by sp
ontaneous fission of Cf-252. These states are found in neutron rich nu
clei of different structure and deformations. About 50 isomeric nuclei
have been observed using coincidences between gamma-rays identified i
n EUROGAM II and fission fragments detected in photovoltaic cells (SAP
hIR). Lifetimes in the range from 20 ns to 2 mu s have been measured.
Presented calculations based on HFB + D1S force on new measured isomer
ic states in the Nd-152,Nd-154,Nd-156 show evidence for K-isomers.