Beta decay of the exotic $T_z$ = -2 nuclei $^{48}$Fe, $^{52}$Ni and $^{56}$Zn

Bibliographic Details
Title: Beta decay of the exotic $T_z$ = -2 nuclei $^{48}$Fe, $^{52}$Ni and $^{56}$Zn
Authors: Orrigo, S. E. A., Rubio, B., Fujita, Y., Gelletly, W., Agramunt, J., Algora, A., Ascher, P., Bilgier, B., Blank, B., Cáceres, L., Cakirli, R. B., Ganioğlu, E., Gerbaux, M., Giovinazzo, J., Grévy, S., Kamalou, O., Kozer, H. C., Kucuk, L., Kurtukian-Nieto, T., Molina, F., Popescu, L., Rogers, A. M., Susoy, G., Stodel, C., Suzuki, T., Tamii, A., Thomas, J. C.
Source: Phys. Rev. C 93, 044336 (2016)
Publication Year: 2016
Collection: Nuclear Experiment
Subject Terms: Nuclear Experiment
More Details: The results of a study of the beta decays of three proton-rich nuclei with $T_z=\text{-}2$, namely $^{48}$Fe, $^{52}$Ni and $^{56}$Zn, produced in an experiment carried out at GANIL, are reported. In all three cases we have extracted the half-lives and the total $\beta$-delayed proton emission branching ratios. We have measured the individual $\beta$-delayed protons and $\beta$-delayed $\gamma$ rays and the branching ratios of the corresponding levels. Decay schemes have been determined for the three nuclei, and new energy levels are identified in the daughter nuclei. Competition between $\beta$-delayed protons and $\gamma$ rays is observed in the de-excitation of the $T=2$ Isobaric Analogue States in all three cases. Absolute Fermi and Gamow-Teller transition strengths have been determined. The mass excesses of the nuclei under study have been deduced. In addition, we discuss in detail the data analysis taking as a test case $^{56}$Zn, where the exotic $\beta$-delayed $\gamma$-proton decay has been observed.
Comment: 19 pages, 21 figures
Document Type: Working Paper
DOI: 10.1103/PhysRevC.93.044336
Access URL: http://arxiv.org/abs/1601.03983
Accession Number: edsarx.1601.03983
Database: arXiv
More Details
DOI:10.1103/PhysRevC.93.044336