BETA DECAY OF THE EXOTIC Tz = -2, 56Zn NUCLEUS AND HALF-LIFE OF VARIOUS PROTON-RICH Tz = -1 NUCLEI.

Autor: ORRIGO, S. E. A., RUBIO, B., AGRAMUNT, J., ALGORA, A., MOLINA, F., Y. FUJITA, BLANK, B., ASCHER, P., GERBAUX, M., GIOVINAZZO, J., GRÉVY, S., KURTUKIAN-NIETO, T., GELLETLY, W., BILGIER, B., CAKIRLI, R. B., GANIOGLU, E., KOZER, H. C., KUCUK, L., SUSOY, G., CÁCERES, L.
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Zdroj: Acta Physica Polonica B; Feb2014, Vol. 45 Issue 2, p355-362, 8p
Abstrakt: Preliminary results of an experimental study of the ß-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 f p-shell have been measured. While the decay of the Tz = -1 nuclei proceeds essentially by ß-delayed gamma emission, in the case of 56Zn ß-delayed proton emission is also observed. Moreover, the exotic ß-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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index