Sequential Decay of ${ }^{26}$F*

Unstable neutron rich nuclides show interesting characteristics including multi-neutron emission. By using Jacobi coordinates, multi-neutron emissions from unstable nuclides may be characterized. At the National Superconducting Cyclotron Laboratory experiment, a 101.3 MeV/u ${ }^{27}$Ne ion beam hit a liquid deuterium target, causing reactions which produced several nuclides. Many of these nuclides decayed, resulting in a charged fragment and one or more neutrons. A superconducting dipole magnet bent the path of the fragments into a series of charged-particle detectors. Neutrons from these decays were measured as they interacted with arrays of scintillating plastic bars called the MoNA-LISA. The four-momentum vectors of the charged particle and neutron(s) were used to reconstruct the invariant mass. ${ }^{26}$F was formed by 1-proton stripping from the ${ }^{27}$Ne beam, which resulted in either one or two neutrons emission. A GEANT4 simulation comparison to the experimental data shows that sequential neutron emission resulted from some of the ${ }^{26}$F produced. The results of these comparisons will be presented.