Two-Neutron Sequential Decay of ^24O
release_g3zzjdjnizc4hjrfthiz4u5jf4
by
M.D. Jones, N. Frank, T. Baumann, J. Brett, J. Bullaro, P.A. DeYoung,
J.E. Finck, K. Hammerton, J. Hinnefeld, Z. Kohley, A.N. Kuchera, J. Pereira,
A. Rabeh, W.F. Rogers (+7 others)
2015
Abstract
A two-neutron unbound excited state of ^24O was populated through a
(d,d') reaction at 83.4 MeV/nucleon. A state at E = 715 ± 110 (stat) ±
45 (sys) keV with a width of Γ < 2 MeV was observed above the
two-neutron separation energy placing it at 7.65 ± 0.2 MeV with respect to
the ground state. Three-body correlations for the decay of ^24O
→ ^22O + 2n show clear evidence for a sequential decay
through an intermediate state in ^23O. Neither a di-neutron nor phase-space
model for the three-body breakup were able to describe these correlations.
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