The spdf IBA Analytical Description of Odd Parity States in the Actinide Region

Diallo, A. F.; Barrett, B. R.; Navrátil, Petr; Gorrichategui, C.

doi:10.1006/aphy.1999.5976

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…[33][34][35] and several more recent experimental investigations [21][22][23][24]28,36,37], including a ͑p , t͒ study of the lowest states [23]. Addressed to theoretical understanding of these nuclei there are a number of recent publications which are related mainly to features of octupole collectivity [38][39][40][41][42][43][44], triaxiality [45,46], and to the description within interacting boson approximations [47][48][49][50][51][52].…”

Section: A Quadrupole and Octupole Collectivitymentioning

confidence: 99%

0+states in deformed actinide nuclei by the(p,t)reaction

et al. 2004

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By means of the ͑p , t͒ reaction we study the excitation spectra of 0 + states in the deformed nuclei 228 Th, 230 Th, and 232 U, using the Q3D magnetic spectrograph facility at the Munich tandem accelerator. At small reaction angles the 0 + transfer angular distributions have steeply rising cross sections which allow us to identify these states in otherwise very complicated and dense spectra. For each of these nuclei we resolve typically about ten excited states with safe 0 + assignments. The studied excitation energies range up to 2.5, 2.7, and 2.3 MeV, respectively, and the summed transfer strengths add to more than 60% of the ground state strength. As in a recent study of 158 Gd we compare with interacting boson approximation (IBA) calculations in the spdf boson space. This highly schematic collective model description, including octupole collectivity, but neglecting other relevant degrees of freedom, gives numbers of excited 0 + states in these actinide nuclei that are rather close to the observed ones.

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Section: A Quadrupole and Octupole Collectivitymentioning

confidence: 99%

0+states in deformed actinide nuclei by the(p,t)reaction

et al. 2004

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“…Different versions of reduced Hamiltonians have been applied in the rare-earth region 11,12 and the actinides. [13][14][15][16] We present results of a systematic study of the use of a very simple Hamiltonian to describe the actinides, 8,17 and discuss preliminary work in the rare-earth region. 18 The simplest form of an sd-Hamiltonian describing the evolution from spherical [U (5)] to quadrupole deformed [SU(3)] nuclei is…”

Section: Introductionmentioning

confidence: 99%