%0 Journal Article %T Observation of the beta-Delayed gamma-Proton Decay of Zn-56 and its Impact on the Gamow-Teller Strength Evaluation %A Orrigo, S. E. A. et al %A Rubio, B. %A Agramunt, J. %A Algora, A. %A Molina, F. %J Physical Review Letters %D 2014 %V 112 %N 22 %I Amer Physical Soc %@ 0031-9007 %G English %F Orrigo_etal2014 %O WOS:000336909200004 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1817), last updated on Fri, 04 Jul 2014 01:10:43 +0000 %X We report the observation of a very exotic decay mode at the proton drip line, the beta-delayed gamma-proton decay, clearly seen in the beta decay of the T-z = -2 nucleus Zn-56. Three gamma-proton sequences have been observed after the beta decay. Here this decay mode, already observed in the sd shell, is seen for the first time in the f p shell. Both. and proton decays have been taken into account in the estimation of the Fermi and Gamow-Teller strengths. Evidence for fragmentation of the Fermi strength due to strong isospin mixing is found. %R 10.1103/PhysRevLett.112.222501 %U http://arxiv.org/abs/1401.7685 %U https://doi.org/10.1103/PhysRevLett.112.222501 %P 222501-5pp