Studies on an exotic decay mode: the two-proton radioactivity
by
Pauline Ascher(CENBG)
→
Europe/Zurich
26-1-022 (CERN)
26-1-022
CERN
Description
The emission of two protons from the ground state of a radioactive nucleus has been searched for since 1960, when two-proton radioactivity was predicted by Goldansky. This new nuclear decay mode occurs for nuclei beyond the proton drip-line for which one-proton emission is energetically prohibited.
An overview of the experimental status will be presented, from the discovery of the radioactivity in 2002 to the recent experiments performed with a Time Projection Chamber. Due to the very low statistics experiments, the interpretation of the results is still limited but opens very interesting prospects for further studies of nuclei at the limits of the existence.