%0 Journal Article
%T Two-nucleon Correlations in the Decay of Unbound Nuclei beyond the Drip Lines
%A K. Hagino
%A H. Sagawa
%J Physics
%D 2014
%I arXiv
%X We discuss the two-neutron emission decay of $^{26}$O nucleus from a viewpoint of dineutron correlations between the valence neutrons. We first discuss how the dineutron correlation is realized both in the coordinate space and in the momentum space by employing a three-body model. We then discuss the decay energy spectrum as well as the angular distribution of emitted neutrons. We show that an emission of two neutrons in back-to-back directions is enhanced, which we interpret as a clear manifestation of the dineutron correlation between the valence neutrons.
%U http://arxiv.org/abs/1410.7125v1