Nuclear data sheets for A = 232, 236

Schmorak, M.R.

doi:10.1016/s0090-3752(05)80003-1

Cited by 59 publications

(20 citation statements)

References 147 publications

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“…The transition from octupole deformation to octupole vibrations can also be seen by considering the simplest quantity measuring the relative displacement of the negative-parity [32], 232 Th [32,33], and 234 Th [32], compared to theoretical predictions for φ = 45 • and φ = 60 • . (b) Same as (a) but for 218 Ra [34,35], 220 Ra [27], 222 Ra [32,36], 224 Ra [32,36], 226 Ra [32,36], and 228 Ra [32], compared to theoretical predictions for φ = 45 • and φ = 56 • .…”

Section: Comparison To Experimentsmentioning

confidence: 99%

“…As a result, 226 Ra appears to be closest to the border between the two regions. [27], 222 Th [28], 224 Th [29], 226 Th [30], 228 Th [31], 230 Th [32], 232 Th [32,33], and 234 Th [32], as a function of the neutron number. (b) Same as (a) but for the associated negative-parity bands.…”

Section: Comparison To Experimentsmentioning

confidence: 99%

“…[32], 232 Th [32,33], and 234 Th [32], as a function of the angular momentum. (b) Same as (a) but for 218 Ra [34,35], 220 Ra [27], 222 Ra [32,36], 224 Ra [32,36], 226 Ra [32,36], 228 Ra [32], and 230 Ra [32].…”

Section: Comparison To Experimentsmentioning

confidence: 99%

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Analytic description of critical-point actinides in a transition from octupole deformation to octupole vibrations

et al. 2005

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An analytic collective model in which the relative presence of the quadrupole and octupole deformations is determined by a parameter (φ 0 ), while axial symmetry is obeyed, is developed. The model [to be called the analytic quadrupole octupole axially symmetric model (AQOA)] involves an infinite well potential, provides predictions for energy and B(EL) ratios, which depend only on φ 0 , draws the border between the regions of octupole deformation and octupole vibrations in an essentially parameter-independent way, and describes well 226 Th and 226 Ra, for which experimental energy data are shown to suggest that they lie close to this border. The similarity of the AQOA results with φ 0 = 45 • for ground-state band spectra and B(E2) transition rates to the predictions of the X(5) model is pointed out. Analytic solutions are also obtained for Davidson potentials of the form β 2 + β 4 0 /β 2 , leading to the AQOA spectrum through a variational procedure.

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Section: Comparison To Experimentsmentioning

confidence: 99%

Section: Comparison To Experimentsmentioning

confidence: 99%

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Analytic description of critical-point actinides in a transition from octupole deformation to octupole vibrations

et al. 2005

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“…For ground-state band transitions the B(E2) values change quite smoothly with the value of The choice of the value of y is correlated with the choice of e~. In this work the value of -The calculated and experimental B(E2) values for the ground-state bands of U and U.The experimental data are adopted from Refs [15,18]…”

mentioning

confidence: 99%

“…The 2+ m 0+~B (E2) values of U and U are also displayed forcomparison. The experimental data are adopted from Refs [14,15]…”

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confidence: 99%

Identical energy bands of uranium isotopes in the interacting boson model

1994

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The energy spectra and B(E2) values of the uranium isotopes U are calculated in the interacting-boson-plus-fermion-pair model. It was found that in order to reproduce the identical energy bands, weak boson pairing, a weak angular momentum interaction and a strong quadrupole interaction are needed.PACS number(s): 21.60. Fw, 27.90.+b Recently superdeformed rotational bands with almost identical energies have been discovered in the mass 150 and 190 regions [1 -4]. The occurrences of identical energy bands which suggest a constant moment of inertia are not expected &om general arguments. The A /3 mass dependence, the changes of deformation with mass, the orbital alignment effects, and changes in pairing all seem

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