Abstract
We study the two-neutron decay of the unbound 26O nucleus with a three-body model assuming an inert 24O core and two valence neutrons. We first discuss the importance of the neutron-neutron final state interaction in the observed decay energy spectrum. We then show that the energy and and angular distributions for the two emitted neutrons manifest a clear evidence for the strong neutron-neutron correlation in the three-body resonance state. In particular, we find an enhancement of two-neutron emission in back-to-back directions. This is interpreted as a consequence of dineutron correlation, with which the two neutrons are spatially localized before the emission.
| Original language | English |
|---|---|
| Article number | 014331 |
| Journal | Physical Review C - Nuclear Physics |
| Volume | 89 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2014 Jan 31 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Hagino, K., & Sagawa, H. (2014). Correlated two-neutron emission in the decay of the unbound nucleus 26 O. Physical Review C - Nuclear Physics, 89(1), [014331]. https://doi.org/10.1103/PhysRevC.89.014331