- V. Paar (Univ. Zagreb) - Quadrupole moments of the even-even
vibrational nuclei.
- Accession Number
- 000503817
- Author
- Alaga
G. Krmpotic
F. Lopac
V. Paar
V. Sips
L.
- Institution
- Inst. 'Ruder Boskovic', Zagreb, Yugoslavia.
- Title
- Quadrupole moments of the even-even vibrational nuclei.
- Source
- Fizika, vol.4, suppl., 1971, pp.25-9. Yugoslavia.
- Country of Publication
- Yugoslavia.
- Conference Information
- Proceedings of the Meeting of Yugoslav Nuclear Physicists. Opatija,
Yugoslavia. 24-26 Nov. 1971.
- Abstract
- Recent measurements of the quadrupole moments in the even-even vibrational
nuclei have provided a good test for different nuclear models. The authors
extract the main effects responsible for the existence of the quadrupole
moment and to compare the mechanisms provided by different types of approach.
In analogy with the polarization effect observed in the odd-proton nuclei,
such as Sb, In, etc., where the large ground-state quadrupole moment was
explained by coupling one particle to the harmonic vibrator, one expects a
similar process for two or more particles coupled to the vibrator. However,
in going from the one- to the two-particle case, a qualitatively new feature,
i.e., the short-range residual force between the two particles, is
encountered. The quadrupole moment of a two-particle 2/sup +/ state exhibits
the same polarization effect as in the one-particle case. However, in a
vibration nucleus the 2/sup +//sub 1/ state is of the one-phonon rather than
of the two-particle type due to the large energy gap Delta separating the
paired from the broken pair states. In this case both the zeroth and first
order contributions vanish. (6 References).
- Abstract Number
- A73026404
- Subject Headings
- Nuclear
collective model. Nuclear
electric moment. Quadrupole
moments.
- Key Phrase Identifiers
- even
even vibrational nuclei; short
range residual force; quadrupole
moments; nuclear
models; polarization
effect; coupling;
harmonic
vibrator; energy
gap; broken
pair states.
- Classification Codes
- Nuclear electromagnetic moments [A2110K]; Nuclear collective models
[A2160E].
- Treatment
- Theoretical or mathematical.
- CODEN
- FZKAAA
- Language
- English.
- ISSN
- 0015-3206.
- Publication Type
- Conference Paper.
- Update Code
- 197300.