First observation of 54Zn and its decay by two-proton emission

Bertram Blank (1) , N. Adimi (1) , A. Bey (1) , G. Canchel (1) , C. Dossat (1) , A. Fleury (1) , J. Giovinazzo (1) , I. Matea (1, 2) , Francois de Oliveira Santos (2) , I. Stefan (2) , G. Georgiev (2) , S. Grévy (2) , J.C. Thomas (2) , C. Borcea , D. Cortina , M. Caamano , M. Stanoiu (3) , F. Aksouh

1 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
2 GANIL - Grand Accélérateur National d'Ions Lourds
3 IPNO - Institut de Physique Nucléaire d'Orsay

In an experiment performed at the LISE3 facility of GANIL, the isotope 54Zn and its decay via two-proton emission were observed for the first time. In addition, preliminary results indicate that three implantation events of 48Ni were observed. One of the associated decay events is compatible with a two-proton emission. New data on the decay of 45Fe and its two-proton branch were recorded at the same time. The results for 54Zn are compared to theory.

Mots clés: Decay by proton emission; Other topics in radioactive decay and in-beam spectroscopy

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

Bertram Blank, N. Adimi, A. Bey, G. Canchel, C. Dossat, et al.. First observation of 54Zn and its decay by two-proton emission. European Physical Journal A, 2005, 25, pp.169-172. ⟨10.1140/epjad/i2005-06-012-6⟩. ⟨in2p3-00024677⟩