Fermion dynamical symmetry model for the even-even and even-odd nuclei in the Xe-Ba region

Pan, XW; Ping, J. L.; D, Hsuan Feng; Jq, Chen; Wu, Chang-Luen; Guidry, Mike

doi:10.1103/physrevc.53.715

Cited by 38 publications

(17 citation statements)

References 25 publications

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“…Though it is not proper to compare the phenomenological Davydov-Filippov (DF) model [3] on a equal footing with the microscopic models viz. IBM and Fermion Dynamical Symmetry Model (FDSM) [24] even than, it is permissible to emphasize the better fit achieved by the DF model over the existing models. …”

Section: B(e2) Ratesmentioning

confidence: 98%

Evidence of rigid triaxiality in some xenon nuclei

Singh¹,

Bihari²,

Singh³

et al. 2007

Can. J. Phys.

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The present study deals with a topic of current interest, getting clear evidence for triaxiality in the 120−130 Xe nuclei near A = 130. The odd-even staggering in a so-called gamma-vibrational band may be treated using the asymmetric rotor model (ARM) on employing the Lipas parameter. The Hilbert space is too limited to describe the full variation of the moment of inertia and, therefore, the Lipas Ansatz is made to correct the ARM energies, which conserve the good result for B(E2) values.Résumé : Cette étude se concentre sur un sujet d'intérêt actuel en cherchant une preuve manifeste du caractère triaxial des noyaux 120−130 Xe près de A = 130. L'étalement pairimpair dans la bande dite gamma-vibrationnelle peut être étudié dans le modèle du rotateur asymétrique (ARM) en utilisant le paramètre de Lipas. L'espace de Hilbert est trop limité pour décrire la variation complète du moment d'inertie et l'ansatz de Lipas a pour but de corriger les énergies ARM , tout en préservant les bonnes valeurs des B(E2).[Traduit par la Rédaction]

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Section: B(e2) Ratesmentioning

confidence: 98%

Evidence of rigid triaxiality in some xenon nuclei

Singh¹,

Bihari²,

Singh³

et al. 2007

Can. J. Phys.

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“…Finally, Xe isotopes are of considerable interest because they belong to a typical shape transitional region [9], in which there are experimental indications of triaxial deformation in some isotopes [10]. Present theoretical triaxial calculations are mainly based on algebraic models [11]. Nevertheless, in this work we assume axial symmetry.…”

Section: Introductionmentioning

confidence: 99%

Gamow-Teller strength distributions in Xe isotopes

Moreno

Álvarez-Rodríguez²,

Sarriguren³

et al. 2006

Phys. Rev. C

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The energy distributions of the Gamow-Teller (GT) strength are studied for even-even Xe isotopes with mass numbers from 124 to 142. A self-consistent microscopic formalism is used to generate the single-particle basis, using a deformed Skyrme Hartree-Fock mean field with pairing correlations in the BCS approximation. The GT transitions are obtained within a quasiparticle random phase approximation approach using a residual spin-isospin interaction in the particle-hole (ph) and particle-particle (pp) channels. We then discuss the pairing BCS treatment and the determination of the ph and pp residual interaction coupling constants. We study the GT + and GT − strength distributions for the equilibrium nuclear shapes, which comprise essential information for studies of charge-exchange reactions and double-β processes involving these isotopes.

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“…In recent years many works have been done on the structure of Xenon isotopes; Kusakari and M. Sugawara (Kusakari & Sugawara, 1984) calculated the energy levels, the back-bending in the yrast bands , reduced transition probabilities for the positive-parity states of [122][123][124][125][126][127][128][129][130] Xe within the framework of the interacting boson model. Xing-Wang Pan et al (Pan et al, 1996) and Al-Jubbori (Al-Jubbori et al, 2016) described the low-lying energy levels for even-even and even-odd nuclei [126][127][128][129][130][131][132] Ba by a unified analytical expression with two (three) adjustable parameters of the fermion model. Wang Bao-lin (Bao-lin, 1997) calculated the triaxial deformation parameters β and γ in the O(6)-like nuclei by comparing quadrupole moments between the interacting boson model IBM and the collective model studied.…”

Section: Introductionmentioning

confidence: 99%

Energy Levels and Electromagnetic Transition of Some Even-Even Xe Isotopes

Khudher¹,

Hasan²,

Sharrad³

2016

MAS

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In this work, the energy levels electromagnetic transition B(E2) and B(M1), branching ratios, mixing ratios and electric quadrupole moment of even-even [120][121][122][123][124][125][126] Xe isotopes have been investigated using Interacting Boson Model (IBM-1). The results were compared with some previous experimental and theoretical values, it was seen that the obtained theoretical results are in agreement with the experimental data.

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Fermion dynamical symmetry model for the even-even and even-odd nuclei in the Xe-Ba region

Cited by 38 publications

References 25 publications

Evidence of rigid triaxiality in some xenon nuclei

Evidence of rigid triaxiality in some xenon nuclei

Gamow-Teller strength distributions in Xe isotopes

Energy Levels and Electromagnetic Transition of Some Even-Even Xe Isotopes

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