Phys. Rev. C 72, 054316 (2005) [7 pages]Search for neutron excitations across the N=20 shell gap in 25-29NeReceived 27 October 2004; revised 30 June 2005; published 22 November 2005 Nuclear structure of the neutron rich 25-29Ne nuclei has been investigated through the in-beam γ-ray spectroscopy technique using fragmentation reactions of both stable and radioactive beams. Level schemes have been deduced for these Ne isotopes. In order to examine the importance of intruder fp configurations, they are compared to shell model calculations performed either in the restricted sd or in the larger sdpf valence space. The 25,26Ne and 27Ne nuclei were found to be in agreement with the sd shell model calculations, whereas 28Ne exhibits signatures of the intruder fp shell contribution. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.72.054316
DOI:
10.1103/PhysRevC.72.054316
PACS:
23.20.Lv, 25.70.Mn, 27.30.-t, 21.60.Cs
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