dorsal/arxiv
View SchemaRoles of triaxiality and residual interaction in signature inversions of A~130 odd-odd nuclei
| Authors | N. Tajima |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9309007 |
| URL | https://arxiv.org/abs/nucl-th/9309007 |
| DOI | 10.1016/0375-9474(94)90180-5 |
| Journal | Nucl.Phys. A572 (1994) 365-383 |
Abstract
Rotational bands with (neutron h_11/2)^1 (proton h_11/2)^1 configurations are studied using a particle-rotor model in which a proton and a neutron quasiparticles interacting through a zero-range force are coupled with a triaxial rotor. It is shown for 124Cs that one can reproduce the signature dependence of energy and B(M1)/B(E2) ratio best when one takes into account gamma-deformations with irrotational-flow moment of inertia in addition to the proton-neutron interaction proposed by Semmes and Ragnarsson. Including both effects, a systematic calculation of signature splittings is performed for Cs, La isotopes and N=75 isotones to be compared with experiments. Discussions are also done on the deficiencies of the cranking model concerning its applicability to signature inversion phenomena in odd-odd nuclei.
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"abstract": "Rotational bands with (neutron h_11/2)^1 (proton h_11/2)^1 configurations are\nstudied using a particle-rotor model in which a proton and a neutron\nquasiparticles interacting through a zero-range force are coupled with a\ntriaxial rotor. It is shown for 124Cs that one can reproduce the signature\ndependence of energy and B(M1)/B(E2) ratio best when one takes into account\ngamma-deformations with irrotational-flow moment of inertia in addition to the\nproton-neutron interaction proposed by Semmes and Ragnarsson. Including both\neffects, a systematic calculation of signature splittings is performed for Cs,\nLa isotopes and N=75 isotones to be compared with experiments. Discussions are\nalso done on the deficiencies of the cranking model concerning its\napplicability to signature inversion phenomena in odd-odd nuclei.",
"arxiv_id": "nucl-th/9309007",
"authors": [
"N. Tajima"
],
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"nucl-th"
],
"doi": "10.1016/0375-9474(94)90180-5",
"journal_ref": "Nucl.Phys. A572 (1994) 365-383",
"title": "Roles of triaxiality and residual interaction in signature inversions of A~130 odd-odd nuclei",
"url": "https://arxiv.org/abs/nucl-th/9309007"
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