Theoretical Description of Energy Spectra and Quadrupole Transition Probabilities of 190 Hg
Abstract
In this paper, we have considered the
coexistence of two quite different structures, the deformed and spherical
shapes in 190Hg nucleus. To this aim, we have determined the energy
spectra and quadrupole transition probabilities of this nucleus. A transitional
Interacting Boson Model Hamiltonian which are based on affinelie algebra have been used to provide a new
general technique for description of shape coexistence. Parameter free (up to
overall scale factors) predictions for theoretical predictions are found to be
in good agreement with experimental counterparts. Also, our results offer a
combination of O(6) and U(5) dynamical symmetries for description of regular
and intruder configurations, respectively.
Keywords
References
- [1]. Garcia-Ramos G.and Heyde K.,Comparing the Interacting Boson Model With Configuration Mixing and the Extended Consistent-Qformalism, Nucl. Phys.A., 82 (2009) 39.
- [2]. Garcia-Ramos G.and Hellemans V.and Heyde K., Concealed Configuration mixing and shape coexistence, Phys.Rev.C., 84 ( 2011) 014331.
- [3]. Dracoulis G D.,Shape coexistence in very neutron deficient Pt isotopes, Nucl.phys.G.,12 (1986) 97-103.
- [4]. Fossion R.and Hellemans V., Shape coexistence in the Lead isotopes using Algebraic Models,Acta.Phsica. Polonica.B.,36 ( 2005) 4.
- [5]. Garcia-Ramos G E.and Heyde K.,Nuclear Shape Coexistence a study of the even-even Hg isotopes,Phy .Rev.C., 89 (2014) 014306.
- [6]. Poves A.,Shape Coexistence the Shell Model view, J.Phys.G.Nucl.part.Phys., 43 (2016) 024010.
- [7]. Stachel G.and Isacker p.and Heyde K., Interpretation of the A=90 transitional region in the framework of the interacting Boson Model,Phys.Rev.C., 25 (1982) 1.
- [8]. Larabee A J.and Carpenter M P.and Riedinger L ., Shape coexistence and alignment processes in the Pt and Au region,Phys.Lett.B.,169 (1986) 1.
- [9]. Heyde K.and Meyer R A.,Monopole Strength and Shape coexistence, Phys.Rev.C., 42 (1990) 2.
- [10]. Doung H T.and Pinard G.and Liberman S.,Shape transition in ne utron deficient Pt isotopes, Phys.Lett.B., 217 (1989) 4.