2022 Impact factor 2.7
Hadrons and Nuclei
Eur. Phys. J. A 6, 5-8

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

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 $4\pi$ charged-particle detector array MICROBALL and neutron detectors was used to detect $\gamma$ 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.

21.60.Cs Shell model - 23.20.Lv Gamma transitions and level energies - 27.40.+z $39 \le A \le 58$

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