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First observation of an excited state in the neutron-rich nucleus31Na
2000
Physical Review C
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The first excited state in the neutron-rich Nϭ20 isotope 31 Na was observed at 350͑20͒ keV via intermediate energy heavy-ion scattering, which is dominated by the Coulomb excitation mechanism. This state appears to be a rotational excitation built on a strongly deformed ground state. The yield of the ␥ ray deexciting this state can be reproduced by a shell model calculation which takes ( f 7/2 ,p 3/2 ) intruder configurations into account.
doi:10.1103/physrevc.63.011305
fatcat:mp5mwsrphjf5fcy5ismzrxxt4u