Phys. Rev. Lett. 102, 182502 (2009) [4 pages]In-Beam γ-Ray Spectroscopy of Very Neutron-Rich Nuclei: Excited States in 46S and 48ArReceived 9 January 2009; published 7 May 2009 We report on the first in-beam γ-ray spectroscopy study of the very neutron-rich nucleus 46S. The N=30 isotones 46S and 48Ar were produced in a novel way in two steps that both necessarily involve nucleon exchange and neutron pickup reactions 9Be(48Ca,48K)X followed by 9Be(48K,48Ar+γ)X at 85.7 MeV/u midtarget energy and 9Be(48Ca,46Cl)X followed by 9Be(46Cl,46S+γ)X at 87.0 MeV/u midtarget energy, respectively. The results are compared to large-scale shell-model calculations in the sd-pf shell using the SDPF-NR effective interaction and Z-dependent modifications. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.182502
DOI:
10.1103/PhysRevLett.102.182502
PACS:
23.20.Lv, 25.60.−t, 27.40.+z
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