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Phys. Rev. C 76, 024307 (2007) [11 pages]

High-spin structure of 105Ag: Search for chiral doublet bands

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J. Timár1, T. Koike2,3, N. Pietralla2,4, G. Rainovski2,5, D. Sohler1, T. Ahn2,4, G. Berek1, A. Costin2,4, K. Dusling2, T. C. Li2, E. S. Paul6, K. Starosta7, and C. Vaman2,7
1Institute of Nuclear Research, Pf. 51, H-4001 Debrecen, Hungary
2Department of Physics and Astronomy, SUNY, Stony Brook, New York 11794-3800, USA
3Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
4Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
5Faculty of Physics, St. Kliment Ohridski University of Sofia, BG-1164 Sofia, Bulgaria
6Oliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom
7NSCL, Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321, USA

Received 11 April 2007; published 6 August 2007

The high-spin structure of the 105Ag nucleus has been studied by using the 100Mo(10B, 5n)105Ag reaction to search for chiral doublet bands based on the three-quasiparticle πg9/2ν(h11/2)2 configuration. The level scheme of 105Ag has been extended. New bands were found and the placement of the yrast πg9/2ν(h11/2)2 band was corrected. No side band to the yrast πg9/2ν(h11/2)2 band could be found in the present experiment. This observation indicates that the γ-soft shape in the 106Ag changed to a more γ-rigid axially symmetric shape in the yrast 105Ag configuration. However, a new pair of bands was observed to show the expected properties of a chiral doublet structure.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.76.024307
DOI:
10.1103/PhysRevC.76.024307
PACS:
21.10.Re, 21.60.-n, 23.20.Lv, 27.60.+j