Effect of gamma softness on the stability of chiral geometry: Spectroscopy of Ag-106

P. Joshi, M. P. Carpenter, D. B. Fossan, T. Koike, E. S. Paul, G. Rainovski, K. Starosta, C. Vaman, R. Wadsworth

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A study of the nucleus Ag-106 has revealed the presence of two strongly coupled negative-parity rotational bands up to the 19(-) and 20(-) states, respectively, which cross each other at spin I similar to 14. The data suggest that near the crossover point the bands correspond to different shapes, which is different to the behavior expected from a pair of chiral bands. Inspection of the properties of these bands indicates a triaxial and a planar nature of rotation for the two structures. Possible causes for this may be understood in terms of a shape transformation resulting from the large degree of gamma softness of Ag-106. These data, along with the systematics of the odd-odd structures in the mass 100 region, suggest that gamma softness has marked implications for the phenomenon of nuclear chirality.

Original languageEnglish
Article number102501
Pages (from-to)-
Number of pages4
JournalPhysical Review Letters
Issue number10
Publication statusPublished - 9 Mar 2007



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