g-boson panacea for magnetic properties of the nuclear groundstate band?

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dc.contributor.authorBarrett B.R.
dc.contributor.authorDavis E.D.
dc.contributor.authorDiallo A.F.
dc.date.accessioned2011-05-15T16:02:13Z
dc.date.available2011-05-15T16:02:13Z
dc.date.issued1992
dc.description.abstractThe magnetic moments of excited members of the groundstate band of even-even medium-mass nuclei are considered within the framework of the sdg-version of IBM-2. A novel asymptotic realisation of the variation-after-(angular-momentum)-projection Hartree-Bose approximation is employed. The introduction of an explicit g-boson degree of freedom is found not to resolve the discrepancy between the values of the d-boson g-factors required phenomenologically and those expected microscopically. Further study of the microscopic underpinning of the g-boson and improved experimental data are required to clarify matters: a promising testing ground would appear to be the Hf-Pt nuclei. Neither the present asymptotic realisation nor its predecessor (the "1/N-scheme") are appropriate when strong variations of magnetic moments within a groundstate band are encountered.
dc.description.versionArticle
dc.identifier.citationPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.identifier.citation295
dc.identifier.citation02-Jan
dc.identifier.issn3702693
dc.identifier.urihttp://hdl.handle.net/10019.1/12369
dc.titleg-boson panacea for magnetic properties of the nuclear groundstate band?
dc.typeArticle
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