Abstract
The doubly magic N = Z nucleus 56Ni has been investigated with two fusion-evaporation reactions; 40Ca(28Si, 3α)56Ni at a beam energy of 122MeV and 28Si( 32S, 2p2n)56Ni at 130MeV. To detect γ-rays in coincidence with evaporated particles the Ge-detector array Gammasphere was used in conjunction with the charged-particle detector system, Microball and a 1π neutron detector array. Results include a significantly extended level scheme of 56Ni, which is compared to large-scale shell model calculations in the fp shell. The experimental and theoretical results agree to a large extent, with one notable exception; the theoretical model fails to predict the proper sequence of the yrast and yrare 8+ states.
| Original language | English |
|---|---|
| Pages (from-to) | 157-165 |
| Number of pages | 9 |
| Journal | European Physical Journal A |
| Volume | 27 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2006 |