Beta decay of the exotic Tz = - 2, $^{56}$Zn nucleus and half-life of various proton-rich Tz = -1 nuclei
FUJITA, H.
Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
SUZUKI, T.
Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
TAMII, A.
Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
FUJITA, Y.
Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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en
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Ce document a été publié dans
Acta Physica Polonica B. 2014, vol. 45, p. 355-362
Jagellonian University, Cracow
Résumé en anglais
Preliminary results of an experimental study of the beta -decay of the exotic T$_z$ = - 2, $^{56}$Zn nucleus and other proton-rich T$_z$ = -1 nuclei are presented. The ions were produced at GANIL using fragmentation ...Lire la suite >
Preliminary results of an experimental study of the beta -decay of the exotic T$_z$ = - 2, $^{56}$Zn nucleus and other proton-rich T$_z$ = -1 nuclei are presented. The ions were produced at GANIL using fragmentation reactions, separated by the LISE3 spectrometer and implanted in a double-sided silicon strip detector surrounded by Ge detectors. The half-lives of $^{56}$Zn and four T$_z$ = -1 nuclei in the fp-shell have been measured. While the decay of the T$_z$ = -1 nuclei proceeds essentially by -delayed gamma emission, in the case of $^{56}$Zn -delayed proton emission is also observed. Moreover, the exotic -delayed gamma-proton decay is seen for the first time. The information from the decay study has been used to determine the absolute Fermi and Gamow-Teller transition strengths. The results for $^{56}$Zn have been compared with the mirror Charge Exchange process, the ($^3$He,t) reaction on the T$_z$ = +2, $^{56}$Fe target nucleus. This comparison is important for understanding the $^{56}$Zn decay data.< Réduire
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