High spin structure of the neutron-rich nucleiI137andCs139

Comment on “High spin structure of the neutron-rich nucleiI137andCs139Sarkar1, Sarkar2 2010Phys. Rev. C91100View full textAdd to dashboardCite

“…Interestingly, back in 2004, we did shell model calculations [3] for 137 I using the same model space, but with the empirical interaction SMN, proposed by us. The recent results of Liu et al [2] predict the correct order for the 9/2 + and 11/2 + states and reproduce the 17/2 + -19/2 + splitting better than that reported by us. However, we got relatively better agreement for other states.…”

“…We calculated the energies of 17/2 + and 23/2 + states and identified spin unassigned experimental levels with close by energies as probable candidates for these states. Liu et al [2] have observed these levels in their experiment. They have made only tentative assignments based on systematics and agreement with theory.…”

“…Liu et al [2] have reported results of shell model (SM) calculations with modern realistic two-body interaction and a larger model space to explain the excitation spectra of 137 I and 139 Cs. The results show reasonable agreement with experimental data.…”

“…Especially the differences between our calculated and experimental energies were considerably smaller for the 21/2 + -33/2 + states than the differences for their calculations. In the work by Liu et al [2], the calculations of the mixing and branching ratios have given a more detailed evidence of the power of the shell model. Later in 2006, particle rotor model (PRM) calculations for a few nuclei in this mass region including 137 I and 139 Cs were done [4].…”

First lifetime investigations of N>82 iodine isotopes: The quest for collectivity

“…[19,20] and references therein. The 137 I isotope was examined via β decay of 137 Te [21] and spontaneous fission of 248 Cm [22] and 252 Cf [23]. The study of yrast states in 137 I, populated in spontaneous fission of 248 Cm, revealed the presence of both π (0g 3 7/2 ) and π (0g 7/2 1d 5/2 ) proton couplings [22].…”