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The Carpathian Summer School of Physics 2007, Sinaia : Roumanie (2007)
Studies with exotic nuclei: two proton radioactivity
C. Borcea1, B. Blank1, G. Canchel1, C. E. Demonchy1, J. Giovinazzo1, L. Hay1, J. Huikari1, S. Leblanc1, I. Matea1, J.-L. Pedroza1, J. Pibernat1, L. Serani1, F. de Oliveira Santos2, S. Grevy2, L. Perrot2, C. Stodel2, J.-C. Thomas2, C. Dossat3

In the present paper, we present measurements that led to the discovery of two-proton radioactivity. After the first observation of this decay mode for 45Fe, new measurements evidenced this decay mode also for 54Zn and most likely 48Ni. A new detector based on the time-projection chamber principle allowed now to visualize the two protons directly.
1 :  CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
2 :  GANIL - Grand Accélérateur National d'Ions Lourds
3 :  DAPNIA - Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée
Physique/Physique Nucléaire Expérimentale
proton emission decay – nuclei with mass number 39 to 58 – time projection chambers – nuclear shell model