@Article{Morales2017,
author="Morales, A. I. et al",
title="Type II shell evolution in A=70 isobars from the N >= 40 island of inversion",
journal="Physics Letters B",
year="2017",
publisher="Elsevier Science Bv",
volume="765",
pages="328--333",
abstract="The level structures of Co-70 and Ni-70, populated from the Chi decay of Fe-70, have been investigated using beta-delayed gamma-ray spectroscopy following in-flight fission of a U-238 beam. The experimental results are compared to Monte-Carlo Shell-Model calculations including the pf + g(9/2) + d(5/2) orbitals. The strong population of a (1(+)) state at 274 keV in Co-70 is at variance with the expected excitation energy of 1 MeV from near spherical single-particle estimates. This observation indicates a dominance of prolate deformed intruder configurations in the low-lying levels, which coexist with the normal near spherical states. It is shown that the 13 decay of the neutron-rich A = 70 isobars from the new island of inversion to the Z = 28 closed-shell regime progresses in accordance with a newly reported type of shell evolution, the so-called Type II, which involves many particle-hole excitations across energy gaps.",
optnote="WOS:000393627800044",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3010), last updated on Thu, 06 Apr 2017 11:24:03 +0000",
issn="0370-2693",
doi="10.1016/j.physletb.2016.12.025",
opturl="https://doi.org/10.1016/j.physletb.2016.12.025",
language="English"
}