ORRIGO, S.E.A.; RUBIO, B.; FUJITA, Y.; GELLETLY, W.; AGRAMUNT, J.; ALGORA, A.; ASCHER, P.; BILGIER, B.; BLANK, Bertram; CACERES, 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.

doi:10.1103/PhysRevC.93.044336

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ORRIGO, S.E.A.
Instituto de Fisica Corpuscular [IFIC]

RUBIO, B.
Instituto de Fisica Corpuscular [IFIC]

FUJITA, Y.

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Physical Review C. 2016-04, vol. 93, n° 4, p. 044336

American Physical Society

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The results of a study of the beta decays of three proton-rich nuclei having $T_z$ = -2, namely $^{48}$Fe, $^{52}$Ni and $^{56}$Zn, produced in an experiment carried out at GANIL, are reported. In all the 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 with their branching ratios. Decay schemes have been determined for the three nuclei, and new energy levels are identified in the corresponding daughter nuclei. Competition between $\beta$-delayed protons and gammas 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.< Réduire

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

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