Two-proton radioactivity : tracking 2He emission

J. Giovinazzo (1)

1 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan

Two proton radioactivity has been observed experimentally in the decay of 45Fe and 54Zn, and possibly of 48Ni. These first experiments only allowed for a limited comparison with theory: T1=2 and Q2P values. Experimental efforts have been achieved to measure dynamical observables in order to perform a more detailed study of the decay mechanism. Time projection chambers have been developped by groups of Bordeaux and Warsaw, and were successfully used at GANIL and MSU: those devices allowed for a first direct observation of the individual protons in the 2-proton radioactivity of 45Fe, and a first estimate of correlations of these protons.

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

J. Giovinazzo. Two-proton radioactivity : tracking 2He emission. International Workshop on the State of the Art in Nuclear Cluster Physics (SOTANCP2008), May 2008, Strasbourg, France. pp.2264-2269, ⟨10.1142/S0218301308011458⟩. ⟨in2p3-00329743⟩