Beta decay of the exotic tz = -2, 56zn nucleus and half-life of various proton-rich tz = -1 nucleiz.ast;

S. E.A. Orrigo, B. Rubio, J. Agramunt, A. Algora, F. Molina, Y. Fujita, B. Blank, P. Ascher, M. Gerbaux, J. Giovinazzo, S. Grévy, T. Kurtukian-Nieto, W. Gelletly, B. Bilgier, R. B. Cakirli, E. Ganioglu, H. C. Kozer, L. Kucuk, G. Susoy, L. CáceresO. Kamalou, C. Stodel, J. C. Thomas, H. Fujita, T. Suzuki, A. Tamii, L. Popescu, A. M. Rogers

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1 Citation (Scopus)

Abstract

Preliminary results of an experimental study of the β-decay of the exotic Tz = -2, 56Zn nucleus and other proton-rich Tz = -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 56Zn and four Tz = -1 nuclei in the fp-shell have been measured. While the decay of the Tz = -1 nuclei proceeds essentially by β-delayed gamma emission, in the case of 56Zn β-delayed proton emission is also observed. Moreover, the exotic β-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 56Zn have been compared with the mirror Charge Exchange process, the (3He,t) reaction on the Tz = +2, 56Fe target nucleus. This comparison is important for understanding the 56Zn decay data.

Original languageEnglish
Pages (from-to)355-362
Number of pages8
JournalActa Physica Polonica B
Volume45
Issue number2
DOIs
Publication statusPublished - Feb 2014
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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