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Quadrupole pairing interaction and signature inversion
KTH, Superseded Departments, Physics.
2000 (English)In: Nuclear Physics A, ISSN 0375-9474, E-ISSN 1873-1554, Vol. 669, no 02-jan, 119-134 p.Article in journal (Refereed) Published
Abstract [en]

The signature inversion in the pi h(11/2) x vh(11/2) rotational bands of the odd-odd Cs and La isotopes and the pi h(11/2) x vi(13/2) bands of the odd-odd Tb, Ho and Tm nuclei is investigated using pairing and deformation self-consistent mean-field calculations, The model can rather satisfactorily account for the anomalous signature splitting provided that spin assignments in some of the bands are revised. Our calculations show that signature inversion can appear already at axially symmetric shapes. It is found that this is due to the contribution of the (lambda mu) = (22) component of the quadrupole-pairing interaction to the mean-field potential.

Place, publisher, year, edition, pages
2000. Vol. 669, no 02-jan, 119-134 p.
Keyword [en]
quadrupole pairing interaction, signature inversion, rotational band, TRS calculations, high-spin states, odd-odd nuclei, residual interaction, rotational bands, triaxiality, proton, configurations, quasiparticle, region, shape
Identifiers
URN: urn:nbn:se:kth:diva-19655ISI: 000086206300009OAI: oai:DiVA.org:kth-19655DiVA: diva2:338347
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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