Short note
High-spin states in the A=39 mirror nuclei 39Ca and 39K
Th. Andersson1 - D. Rudolph1 - C. Baktash2 - J. Eberth3 - C. Fahlander1 - D. Haslip4 - D.R. LaFosse5 - S.D. Paul2 - D.G. Sarantites5 - C.E. Svensson4 - H.G. Thomas3 - J.C. Waddington4 - W. Weintraub6 - J.N. Wilson4,5 - B.A. Brown7
1 Department of Physics, Lund University, S-22100 Lund, Sweden
2 Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
3 Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
4 Department of Physics and Astronomy, McMaster Univeristy, Hamilton, Ontario, L8S 4M1 Canada
5 Chemistry Department, Washington University, St. Louis, MO 63130, USA
6 Department of Physics, University of Tennessee, Knoxville, TN 37996, USA
7 Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824,
USA
Received: 18 August 1999 Communicated by D. Schwalm
Abstract
High-spin states of the mass A=39 mirror pair 39K and 39Ca
were investigated via the fusion-evaporation reaction
28Si+16O at 125 MeV beam energy. The GAMMASPHERE array in
conjunction with the charged-particle detector array MICROBALL
and neutron detectors was used to detect
rays in coincidence with
evaporated light particles. The results of the first high-spin study of
the Tz=-1/2 nucleus 39Ca are discussed in terms of mirror symmetry
and compared to spherical shell-model calculations in the
1d3/2-1f7/2 configuration space.
PACS
21.60.Cs Shell model -
23.20.Lv Gamma transitions and level energies -
27.40.+z
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