Properties of the lowest states in the odd-odd160Tm and160Tm nuclei

Nosek, D.; Kvasil, J.; Štěrba, F.; Holan, P.

doi:10.1007/bf01597715

Cited by 8 publications

(2 citation statements)

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“…We use the surface delta p-n interaction with parameters 8'=3. 0 MeV and 8 =0.8 MeV for the Wigner and Barttlet forces [31,32] respectively. Details of our formulation and calculational procedure have been reported in earlier papers [33 -36].…”

Section: Outline Of Model Formulation and Calculationsmentioning

confidence: 99%

Structure of the low-lying intrinsic states inEu156

et al. 1992

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Microscopic structures of the low-lying nonrotational (intrinsic) states in the odd-odd nucleus '63Eu93 are investigated using the quasiparticle-phonon nuclear model Hamiltonian including the pairing, quadrupole-quadrupole, octupole-octupole, and residual p-n interactions. The extent of vibrational admixtures to the two-quasiparticle configurations and the intrinsic matrix elements of electric octupole operator for the "same I( opposite parity" bands are examined to conclude that, contrary to some recent suggestions, the low-energy "Eu spectrum does not contain "parity doublets" characteristic of reflection asymmetric shapes, in contrast with the structures seen in " Eu and " Eu.PACS number(s): 21.60.Ev, 27.70.+ q

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Section: Outline Of Model Formulation and Calculationsmentioning

confidence: 99%

Structure of the low-lying intrinsic states inEu156

et al. 1992

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“…The rotational degrees of freedom of odd-odd nuclei are usually treated with the rotor-plus-two-quasiparticle approach (see e.g. [8,[11][12][13][14]23]). …”

Section: Introductionmentioning

confidence: 99%

Microscopic description of vibrational degrees of freedom in odd-odd isotopes of Ho

Kvasil

Sheline

Nesterenko

et al. 1992

Z. Physik A - Hadrons and Nuclei

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The microscopic approach for the description of low-lying intrinsic states in deformed odd-odd nuclei is formulated as a generalization of the quasiparticle-phonon model. In comparison with other models used for deformed odd-odd nuclei, the approach proposed in this paper involves vibrational degrees of freedom of the doubly-even core, their coupling to quasiparticle degrees of freedom and the n-p interaction between the odd particles. Our model treats all of these modes of nuclear motion on the same microscopic footing. This proposed model is applied to calculate the energies and phononquasiparticle structure of the intrinsic states of the oddodd Ho isotopes with A = 160, 162, 164, 166 and 168. It is found that the low-lying intrinsic states in the odd-odd Ho isotopes have only small vibrational components. In general the vibrational states are fragmented over many intrinsic states.

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