The observation of long-range three-body Coloumb effects in the decay of   16Ne
  The interaction of an $E/A$=57.6-MeV $^{17}$Ne beam with a Be target was used to populate levels in $^{16}$Ne following neutron knockout reactions. The decay of $^{16}$Ne states into the three-body $^{14}$O+$p$+$p$ continuum was observed in the High Resolution Array (HiRA). For the first time for a 2p emitter, correlations between the momenta of the three decay products were measured with sufficient resolution and statistics to allow for an unambiguous demonstration of their dependence on the long-range nature of the Coulomb interaction. Contrary to previous experiments, the intrinsic decay width of the $^{16}$Ne ground state was found to be narrow ($\Gamma<60$~keV), consistent with theoretical estimates. 
K.W Brown, R.J. Charity, L.G. Sobotka, Z. Chajecki, L.V. Grigorenko,   I.A. Egorova, Yu.L. Parfenova, M.V. Zhukov, S. Bedoor...
nucl-ex nucl-th