Transition quadrupole moments in the superdeformed band of 40Ca

C. J. Chiara, E. Ideguchi, M. Devlin, D. R. LaFosse, F. Lerma, W. Reviol, S. K. Ryu, D. G. Sarantites, C. Baktash, A. Galindo-Uribarri, M. P. Carpenter, R. V.F. Janssens, T. Lauritsen, C. J. Lister, P. Reiter, D. Seweryniak, P. Fallon, A. Görgen, A. O. Macchiavelli, D. Rudolph

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Abstract

The transition quadrupole moments Qt for the superdeformed band in 40Ca have been determined through thin-target Doppler-shift attenuation analyses. A best-fit value of Qt = 1.30 ± 0.05 e b is obtained when a single value is assumed for the entire band. Fitting separate quadrupole moments for in-band transitions decaying from the high-spin states and the presumably admixed low-spin states results in Qt(high) = 1.81-0.26+0.41 e b and Qt(low) = 1.18-0.05+0.06 respectively, Qt values extracted for individual transitions in a Doppler-broadened line-shape analysis also indicate smaller Qt values at lower spins. These results are consistent with the interpretation of this band as an eight-particle-eight-hole superdeformed band with a significant admixture of less-collective configurations at low spins.

Original languageEnglish
Article number041303
Pages (from-to)413031-413035
Number of pages5
JournalPhysical Review C - Nuclear Physics
Volume67
Issue number4
DOIs
StatePublished - Apr 1 2003

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