Angular Correlations in Breakup of Three-Body Halo Nuclei

We use the three-body model and the sudden approximation to compute angularcorrelations in high-energy fragmentation reactions of two-neutron halos onlight targets. The contribution from one-neutron absorption by far dominatesover that of neutron scattering. We use 6He (n+n+alpha) and 11Li (n+n+9Li) asexamples and study the dependence of the predictions of this model on differentphysical assumptions and parameters. PACS number(s): 25.60.-t, 25.60.Gc, 21.45.+v}Comment: 5 pages, 5 postscript figures, uses psfig.st