Nuclear Data Sheets for A = 247

Akovali, Y.A.

doi:10.1016/0090-3752(92)80076-v

Cited by 14 publications

(4 citation statements)

References 52 publications

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“…The lowest 0 + excited state, in particular, is basically a one-phonon state and collects an appreciable E2 strength, in agreement with the available data. In 230 Th, in fact, the measured E2 strength is B (exp) (E2; 0 + 1 → 2 + 0 ) = 1.10 W.u [16], close to the computed value B (QPM) (E2; 0 + 1 → 2 + 0 ) = 1.71 (W.u.). The monopole transition strength collected by the first 0 + is estimated to be 10 3 ρ 2 exp (E0; 0 + β → 0 + g ) = 50(20) [15], few times larger than the QPM value and orders of magnitude larger than in 168 Er.…”

Section: Numerical Resultssupporting

confidence: 58%

Microscopic nature of 0[sup +] states populated in large abundance in deformed nuclei

Iudice¹,

Sushkov²,

Shirikov³

et al. 2008

AIP Conference Proceedings

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Section: Numerical Resultssupporting

confidence: 58%

Microscopic nature of 0[sup +] states populated in large abundance in deformed nuclei

Iudice¹,

Sushkov²,

Shirikov³

et al. 2008

AIP Conference Proceedings

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“…In 230 Th, for instance, the computed E2 strength is B (QPM) (E2; 0 + 2 → 2 + 1 ) = 1.71 W.u., fairly close to the measured value B (exp) (E2; 0 + 2 → 2 + 1 ) = 1.10 W.u. [180]. The monopole transition strength collected by the first excited 0 + is ρ 2 QPM (E0; 0 + 2 → 0 + 1 ) = 8.2 × 10 −3 , smaller than the value ρ 2 exp (E0; 0 + 2 → 0 + 1 ) = 50(20) × 10 −3 extracted from experiments [179].…”

Section: + States In Deformed Nucleimentioning

confidence: 68%

Low-energy nuclear spectroscopy in a microscopic multiphonon approach

Iudice

Ponomarev

Stoyanov

et al. 2012

J. Phys. G: Nucl. Part. Phys.

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The low-lying spectra of heavy nuclei are investigated within the quasiparticlephonon model. This microscopic approach goes beyond the quasiparticle random-phase approximation by treating a Hamiltonian of separable form in a microscopic multiphonon basis. It is therefore able to describe the anharmonic features of collective modes as well as the multiphonon states, whose experimental evidence is continuously growing. The method can be put in close correspondence with the proton-neutron interacting boson model. By associating the microscopic isoscalar and isovector quadrupole phonons with proton-neutron symmetric and mixed-symmetry quadrupole bosons, respectively, the microscopic states can be classified, just as in the algebraic model, according to their phonon content and their symmetry. In addition, these states disclose the nuclear properties which are to be ascribed to genuine shell effects, not included in the algebraic approach. Due to its flexibility, the method can be implemented numerically for systematic studies of spectroscopic properties throughout entire regions of vibrational nuclei. The spectra and multipole transition strengths so computed are in overall good agreement with the experimental data. By exploiting the correspondence of the method with the interacting boson model, it is possible to embed the microscopic states into this algebraic frame and, therefore, face the study of nuclei far from shell closures, not directly accessible to merely microscopic approaches. Here, it is shown how this task is accomplished through systematic investigations of magnetic dipole and, especially, electric dipole modes along paths moving from the vibrational to the transitional regions. The method is very well suited to the study of well-deformed nuclei. It provides reliable descriptions of low-lying

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“…Calculations for α-decay widths of all even-even nearspherical α emitters included in the compilation of experimental data of [24] were performed using the SLy4 Skyrme force in [12]. Here we focus on the results for the To compare the microscopic α-decay properties for several nuclei we investigate the reduced width, γ 2 (r c ), Eq.…”

Section: Results For α-Decay Properties Of Po Rn Ra Isotopesmentioning

confidence: 99%

Alpha-particle formation and decay rates from Skyrme–HFB wave functions

Ward¹,

Carlsson²,

Åberg³

2014

Phys. Scr.

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Abstractα decay is treated microscopically, where the unstable mother nucleus and residual daughter nucleus are described using HFB wave functions, obtained with the Skyrme effective interaction. From these wave functions the amplitude for forming α particles in the mother nucleus is computed. Two different Skyrme parametrizations with different pairing properties are compared, and we find good agreement with experiment for relative decay rates in both cases. The absolute values of the decay rates are under-estimated.

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Nuclear Data Sheets for A = 247

Cited by 14 publications

References 52 publications

Microscopic nature of 0[sup +] states populated in large abundance in deformed nuclei

Microscopic nature of 0[sup +] states populated in large abundance in deformed nuclei

Low-energy nuclear spectroscopy in a microscopic multiphonon approach

Alpha-particle formation and decay rates from Skyrme–HFB wave functions

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