Pair truncation for rotational nuclei: J=(17/2 model

P. Halse, L. Jaqua, Bruce R Barrett

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The suitability of the pair condensate approach for rotational states is studied in a single j=(17/2 shell of identical nucleons interacting through a quadrupole-quadrupole Hamiltonian. The ground band and a K=2 excited band are both studied in detail. A direct comparison of the exact states with those constituting the SD and SDG subspaces is used to identify the important degrees of freedom for these levels. The range of pairs necessary for a good description is found to be highly state dependent; S and D pairs are the major constituents of the low-spin ground-band levels, while G pairs are needed for those in the band. Energy spectra are obtained for each truncated subspace. SDG pairs allow accurate reproduction of the binding energy and K=2 excitation energy, but still give a moment of inertia which is about 30% too small even for the lowest levels.

Original languageEnglish (US)
Pages (from-to)968-973
Number of pages6
JournalPhysical Review C - Nuclear Physics
Volume40
Issue number2
DOIs
StatePublished - 1989

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nuclei
approximation
quadrupoles
rotational states
moments of inertia
nucleons
condensates
energy spectra
degrees of freedom
binding energy
excitation
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Pair truncation for rotational nuclei : J=(17/2 model. / Halse, P.; Jaqua, L.; Barrett, Bruce R.

In: Physical Review C - Nuclear Physics, Vol. 40, No. 2, 1989, p. 968-973.

Research output: Contribution to journalArticle

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