Cross Sections for Coulomb and Nuclear Breakup of Three-Body Halo Nuclei

We present a model describing fragmentation reactions of two-neutron halo nuclei as superposition of all possible reactions where one, two, or the three halo constituents interact simultaneously with the target. The model is suitable for light, intermediate and heave targets. Results in good agreement with the experiment are shown for two-neutron cross sections, interaction cross sections and momentum distributions.