Nuclear magnetic dipole properties and the triaxial deformation

Sun, Yang; Sheikh, J. A.; Long, Gui Lu

doi:10.1016/s0370-2693(02)01625-8

Cited by 24 publications

(19 citation statements)

References 28 publications

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“…In the present work, we also evaluate the intraand inter-band electromagnetic transition probabilities, and it is shown that the deformation used in the present work provides a better agreement for the transition calculations in comparison to our earlier work on the ground-state configuration only [26]. The TPSM approach has already been discussed in our earlier publications [12][13][14][15][16][17], and in the following we shall provide only a few details of the model that are relevant to the discussion of the results.…”

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confidence: 67%

Mixing of quasiparticle excitations andγvibrations in transitional nuclei

et al. 2011

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Evidence of strong coupling of quasiparticle excitations with γ-vibration is shown to occur in transitional nuclei. High-spin band structures in 166,168,170,172 Er are studied by employing the recently developed multiquasiparticle triaxial projected shell model approach. It is demonstrated that a low-lying K = 3 band observed in these nuclei, the nature of which has remained unresolved, originates from the angular-momentum projection of triaxially deformed two-quasiparticle (qp) configurations. Further, it is predicted that the structure of this band depends critically on the shell filling: in 166 Er the lowest K = 3 2-qp band is formed from proton configuration, in 168 Er the K = 3 neutron and proton 2-qp bands are almost degenerate, and for 170 Er and 172 Er the neutron K = 3 2-qp band becomes favored and can cross the γ-vibrational band at high rotational frequencies. We consider that these are few examples in even-even nuclei, where the three basic modes of rotational, vibrational, and quasi-particle excitations co-exist close to the yrast line.

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confidence: 67%

Mixing of quasiparticle excitations andγvibrations in transitional nuclei

et al. 2011

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“…[7]). There have been microscopic models employed in the g factor calculation for heavy, deformed nuclei [8,9,10,11,12,13,14,15]. However, except in Ref.…”

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confidence: 99%

Systematics ofgfactors of21+states in even-even nuclei from Gd to Pt: A microscopic description by the projected shell model

Bian

Long

et al. 2007

Phys. Rev. C

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The systematics of g factor of first excited 2 + state vs neutron number N is studied by the projected shell model. The study covers the even-even nuclei of all isotopic chains from Gd to Pt. g factors are calculated by using the many-body wavefunctions that reproduces well the energy levels and B(E2)s of the ground-state bands. For Gd to W isotopes the characteristic feature of the g factor data along an isotopic chain is described by the present model. Deficiency of the model in the g factor description for the heavier Os and Pt isotopes is discussed.

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“…For instance, in the particle-rotor model analysis of 128 Cs, it is noted that the calculated B(E2) transition probabilities depict the opposite trend to that of the observed transitions as a function of spin [7]. In the present work, we shall provide a detailed investigation of 108 Ag using the microscopic triaxial projected shell model (TPSM) approach [30][31][32]. Recently, TPSM approach has been extended to include multi-quasiparticle states and this development allowed [17,18].…”

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confidence: 99%