ASCHER, P.; AUDIRAC, L.; ADIMI, N.; BLANK, Bertram; BORCEA, C.; BROWN, B.A.; COMPANIS, I.; DELALEE, F.; DEMONCHY, C.E.; DE OLIVEIRA SANTOS, Francois; GIOVINAZZO, J.; GRÉVY, S.; GRIGORENKO, L.V.; KURTUKIAN NIETO, T.; LEBLANC, S.; PEDROZA, J.-L.; PERROT, L.; PIBERNAT, J.; SERANI, L.; SRIVASTAVA, P.C.; THOMAS, J.C.

doi:10.1103/PhysRevLett.107.102502

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ASCHER, P.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

AUDIRAC, L.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

ADIMI, N.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

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Physical Review Letters. 2011, vol. 107, p. 102502

American Physical Society

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The two protons emitted in the decay of 54Zn have been individually observed for the rst time in a Time Projection Chamber. The total decay energy and the half-life measured in this work agree with the results obtained in a previous experiment. Angular and energy correlations between the two protons are determined and compared to theoretical distributions of a three-body model. Within the shell model framework, the relative decay probabilities show a strong contribution of the p2 con guration for the two-proton emission. After 45Fe, the present result on 54Zn constitutes only the second case of a direct observation of the ground state two-proton decay of a long-lived isotope.< Réduire

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Direct observation of two protons in the decay of $^{54}$Zn

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