Comment on "First Observation of Ground State Dineutron Decay: 16Be"
  A recent measurement [Spyrou et al., PRL 108, 102501 (2012)] of the in-flight decay of 16Be into 14Be+n+n has been interpreted as the first case of dineutron emission. Here we point out that the inclusion of the n-n interaction neglected in the description of the direct three-body decay can generate strong enhancements at low n-n relative energy and angle, as observed, without any need to invoke dineutron decay. 
F.M. Marques, N.A. Orr, N.L. Achouri, F. Delaunay, J. Gibelin
nucl-ex nucl-th