14C cluster emission: a tool for the study of nuclear structures

Abstract

Abstract.A brief survey of the 14C cluster emission of different radium isotopes will remind the first evidence for an odd-even effect in 14C radioactivity. The discovery at the I.P.N. Orsay, of a fine structure in the 14C emission of 223Ra enhanced the development of this new investigation field. The qualitative interpretation of the favoured transitions to the first two excited states of the 2~ daughter nucleus offers a new possibility to better understand nuclear structures of heavy deformed nuclei. For instance, an accurate determination of the energy of the 14C clusters emitted by 225Ac and 221Fr must allow to improve our knowledge of ground state configurations of these nuclei. 23.90. + w; 27.90. + b; 21.60.Gx PACS: