No Tetra-proton cluster in 20Mg
R. Sherr1 - H.T. Fortune2 - B.A. Brown3
1 Department of Physics, Princeton University, Princeton, NJ 08544, USA
2 Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA
3 National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
Received: 14 May 1999 Communicated by B. Povh
Despite a recent suggestion of Chulkov, et al., we find no evidence for a tetra-proton cluster in 20Mg. The binding energy and radius are easily understood without such a cluster.
21.10.Dr Binding energies and masses - 21.10.Sf Coulomb energies - 21.60.Gx Cluster models