Resonances and continuums in the three-body breakup of halo nuclei Original Research Article

We investigate the three-body Coulomb breakup reaction of two-neutron halo nuclei 11Li, where we adopt the extended three-body model of 11Li with paying attention to the pairing correlation of the nuclei. We also employ the complex scaling method (CSM) to solve the three-body unbound states of 11Li. From the results, we cannot find any dipole resonances, at least, having small decay widths. This means that the breakup strengrth is exhausted by the continuum states. We discuss which component of the continuum states in the three-body system determines the structure of the breakup strength such as the low energy enhancement observed in the experiments.