Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2009-03-11
Phys.Rev.Lett.102:142501,2009
Physics
Nuclear Physics
Nuclear Experiment
4 pages, 3 figures, to be published in Physical Review Letters, 2009
Scientific paper
10.1103/PhysRevLett.102.142501
The results of measurements of the production of neutron-rich nuclei by the fragmentation of a 76-Ge beam are presented. The cross sections were measured for a large range of nuclei including fifteen new isotopes that are the most neutron-rich nuclides of the elements chlorine to manganese (50-Cl, 53-Ar, 55,56-K, 57,58-Ca, 59,60,61-Sc, 62,63-Ti, 65,66-V, 68-Cr, 70-Mn). The enhanced cross sections of several new nuclei relative to a simple thermal evaporation framework, previously shown to describe similar production cross sections, indicates that nuclei in the region around 62-Ti might be more stable than predicted by current mass models and could be an indication of a new island of inversion similar to that centered on 31-Na.
Amthor Alan Matthew
Baumann Thomas
Bazin Daniel
Gade Alexandra
Ginter T. N.
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