EPJ Web of Conferences
Volume 66, 2014INPC 2013 – International Nuclear Physics Conference
|Number of page(s)||4|
|Published online||20 March 2014|
Beta decay of exotic TZ = -1, -2 nuclei: the interesting case of 56Zn
1 Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
2 Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
3 Centre d’Etudes Nucléaires de Bordeaux Gradignan CNRS/IN2P3 - Université Bordeaux 1, 33175 Gradignan Cedex France
4 Department of Physics, University of Surrey, Guilford GU2 7XH, Surrey, UK
5 Inst. of Nuclear Research of the Hung. Acad. of Sciences, Debrecen, H-4026, Hungary
6 Department of Physics, Istanbul University, Istanbul, Turkey
7 Grand Accélérateur National d’Ions Lourds, BP 55027, F-14076 Caen, France
8 Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
9 Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile
10 SCK.CEN, Boeretang 200, 2400 Mol, Belgium
11 Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
a e-mail: Sonja.Orrigo@ific.uv.es
Published online: 20 March 2014
The β decay properties of the Tz = -2, 56Zn isotope and other proton-rich nuclei in the fp-shell have been investigated in an experiment performed at GANIL. The ions were produced in fragmentation reactions and implanted in a double-sided silicon strip detector surrounded by Ge EXOGAM clovers. Preliminary results for 56Zn are presented .The 56Zn decay proceeds mainly by β delayed proton emission, but β delayed gamma rays were also detected. Moreover, the exotic β delayed gamma-proton decay was observed for the first time. The 56Zn half-life and the energy levels populated in the 56Cu daughter have been determined. Knowledge of the gamma de-excitation of the mirror states in 56Co and the comparison with the results of the mirror charge exchange process, the 56Fe(3He,t) reaction (where 56Fe has Tz = +2), were important in the interpretation of the 56Zn decay data. The absolute Fermi and Gamow-Teller strengths have been deduced.
© Owned by the authors, published by EDP Sciences, 2014
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