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Report No.

Deduced soft-rotator model Hamiltonian parameters and collective properties of medium-to-heavy even-even nuclei

Kunieda, Satoshi; Chiba, Satoshi; Shibata, Keiichi; Ichihara, Akira; Iwamoto, Osamu; Iwamoto, Nobuyuki ; Fukahori, Tokio; Sukhovitskij, E.*

The soft-rotator model Hamiltonian parameters were deduced for 63 even-even medium and heavy nuclei in a mass range $$56 leq A leq 238$$. We obtained those values by the combination of the low-lying level structure and the coupled-channels proton scattering analyses. It was found that the values of the effective quadrupole and octupole deformations obtained were consistent with those derived from experimental data. Besides, the equilibrium ground-state quadrupole deformation parameters were also in reasonable accord with the theoretical mass-models results for deformed heavy nuclei. In this report, we present a complete set of the Hamiltonian parameters for each nucleus. The obtained values of the parameters often varied with the constituent neutron and/or proton numbers anomalously. On the other hand, some clear systematic trends were seen among the major Hamiltonian parameters.



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