RECENT ADVANCES IN THEORETICAL STUDIES OF 2p RADIOACTIVITY: NUCLEAR MANY-BODY STRUCTURE IN THREE-BODY MODEL∗

Nowadays quantum-mechanical three-cluster theory allows one to re-liably calculate the processes of 2p radioactivity (true three-body decays) and the corresponding energy and angular correlations. However, the con-nection of the three-cluster final state configuration with possibly many-body internal structure of the nucleus is unclear in this approach. A simple method for taking into account the many-body structure in the three-body decay calculations was developed. The results of the relativistic mean field (RMF) calculations are used as an input for the three-cluster decay model. The calculations for the prospective two-proton emitter 26S are provided. DOI:10.5506/APhysPolB.42.555 PACS numbers: 23.50.+z, 21.10.Tg, 21.10.Dr, 21.60.Gx The ground state two-proton (2p) radioactivity was predicted by Goldan-sky in 1960 [1]. What he called true two-proton decay is a situation where the sequential emission of the particles is energetically prohibited and all the final-state fragments are emitted simultaneously. Since the experimen-tal discovery of the 45Fe two-proton radioactivity in 2002 [2, 3], the recent progress of this field is very fast. New cases of 2p radioactivity were foun