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APS » Journals » Phys. Rev. C » Volume 63 » Issue 2
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Phys. Rev. C 63, 021301(R) (2000) [4 pages]

γ-decay lifetime measurements in the second minimum of 58Cu

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D. Rudolph1, C. Fahlander1, A. Algora2, C. Andreoiu1, R. Cardona3, C. Chandler4, G. de Angelis2, E. Farnea5, A. Gadea2,5, J. Garcés Narro4, J. Nyberg6, M. Palacz7, Zs. Podolyák4, T. Steinhardt8, and O. Thelen8
1Department of Physics, Lund University, S-22100 Lund, Sweden
2Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
3Departamento de Física, Universidad Nacional de Colombia, Bogotá, Colombia
4Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
5Instituto de Física Corpuscular, E-46100 Valencia, Spain
6The Svedberg Laboratoriet, S-75121 Uppsala, Sweden
7Heavy Ion Laboratory, University of Warsaw, PL-02-093 Warsaw, Poland
8Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany

Received 28 February 2000; revised 14 July 2000; published 27 December 2000

The individual lifetimes of three low-lying states in the proton-decaying well-deformed rotational band in the second minimum of the N=Z nucleus 58Cu were determined. Doppler-shift attenuated γ-ray lineshapes were analyzed following the fusion-evaporation reaction 40Ca(24Mg,1α1p1n)58Cu and using the EUROBALL γ-ray spectrometer coupled to ancillary detector systems. The deduced transitional quadrupole moments confirm the predicted increase of deformation towards the bottom of the band. The γ decay-out strength hints towards a nonstatistical pattern.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.63.021301
DOI:
10.1103/PhysRevC.63.021301
PACS:
21.10.Tg, 23.50.+z, 27.40.+z
 
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