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19 April 2024

» arxiv » nucl-ex/0103012

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Quadrupole moments of high-spin isomers: test of the tilted-axis cranking model
D.L. Balabanski ; K. Vyvey ; G. Neyens ; D. Almehed ; P. Blaha ; D. Borremans ; S. Chmel ; N. Coulier ; R. Coussement ; W. De Clercq ; S. Frauendorf ; G. Georgiev ; H. Hubel ; A. Lepine-Szily ; M. Mineva ; N. Nenoff ; S. Pancholi ; D. Rossbach ; R. Schwengner ; S. Teughels ; P.M. Walker ;
Date:	29 Mar 2001
Journal:	Acta Phys.Polon. B32 (2001) 2655-2660
Subject:	nucl-ex
Abstract:	We report the results of recent measurements of the spectroscopic quadrupole moments of high-spin isomers. For the K=35/2- five-quasiparticle isomer in 179W we measured Q_s=4.00(+0.83)(-1.06)eb. It corresponds to a smaller deformation compared to the ground states of the W isotopes and is in disagreement with the current theoretical predictions. We also measured the quadrupole moment of the I=11- isomer in 196Pb, Q_s=(-)3.41(66)eb. It has the same proton s(-2)1/2 h9/2 i13/2 configuration as the one suggested for the I=16- magnetic bandhead which allows to deduce the quadrupole moment of the 16- state as Q_s=-0.316(97)eb. This small value proves the near sphericity of the bandhead.
Source:	arXiv, nucl-ex/0103012
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