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Rotating N=Z nuclei - A probe to the t=0 and t=1 pairing correlations
2001 (engelsk)Inngår i: Acta Physica Polonica B, ISSN 0587-4254, E-ISSN 1509-5770, Vol. 32, nr 9, s. 2457-2468Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A study of heavy N=Z nuclei including t=1, t(z)=+/-1 pairing only clearly reveals the shortcoming of that model in T-z=0 nuclei. We present a simple model in which we study the response of isoscalar t=0 and isovector t=1 pairing correlations to rotational motion. In particular, we address the role played by the t=1 and t=0 pair gaps with respect to the band crossing frequency. We argue that the t=1 neutron-proton pair field is of limited importance in even-even nuclei. For the t=0 pair field, we introduce two different pairing modes. One is invariant with respect to signature symmetry and one is not. The signature conserving mode results in a delay of the band crossing frequency, whereas the signature breaking part enhances the rigidity of the moment of inertia.

sted, utgiver, år, opplag, sider
2001. Vol. 32, nr 9, s. 2457-2468
Emneord [en]
model, alignment, shape, bands
Identifikatorer
URN: urn:nbn:se:kth:diva-21017ISI: 000171568000020OAI: oai:DiVA.org:kth-21017DiVA, id: diva2:339714
Merknad
QC 20100525Tilgjengelig fra: 2010-08-10 Laget: 2010-08-10 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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