Abstract
Experimental data of complex cluster radioactivity are systematically analyzed and investigated with different models. The half-lives of cluster radioactivity are well reproduced by a new formula between half-lives and decay energies and by a microscopic density-dependent cluster model with the renormalized M3Y nucleon-nucleon interaction. The formula can be considered as a natural extension of both the Geiger-Nuttall law and the Viola-Seaborg formula from simple decay to complex cluster radioactivity where different kinds of clusters are emitted. It is useful for experimentalists to analyze the data of cluster radioactivity. A new linear relationship between the decay energy of cluster radioactivity and the number of particles in the cluster is found where the increase of decay energy for an extra particle is between 15 and 17 MeV. The possible physics behind this new linear relationship is discussed.
- Received 15 June 2004
DOI:https://doi.org/10.1103/PhysRevC.70.034304
©2004 American Physical Society