"Magic" Nucleus Silicon-42
A collaboration of researchers from Florida State University, the NSCL, Lawrence Berkeley National Laboratory, and the University of Surrey (UK) used rare isotope beams from the Coupled Cyclotron Facility for a powerful combination of direct reactions in inverse kinematics to prove the magicity of Si-42.
The researchers report in the June 16 issue of Nature that the shell structure of the rare isotope Si-42 is surprisingly similar to that of the stable nucleus Calcium-48.
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Operation of NSCL as a national user facility is supported by the Experimental Nuclear Physics Program of the U.S. National Science Foundation.