Correlated two-neutron emission in the decay of the unbound nucleus 26 O

K. Hagino, H. Sagawa

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31 Citations (Scopus)


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 languageEnglish
Article number014331
JournalPhysical Review C - Nuclear Physics
Issue number1
Publication statusPublished - 2014 Jan 31

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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