Fusion reaction of halo nuclei : A real-time wave-packet method for three-body tunneling dynamics

Fusion reactions of halo nuclei are investigated theoretically with a three-body model. The time-dependent wave-packet method is used to solve the three-body Schrodinger equation. Dynamics of the halo nucleons are visualized in the coordinate space. Significant differences between the neutron-halo and the proton-halo systems are discussed in connection to the Coulomb breakup process. The fusion cross sections are calculated for Be-11 - Bi-209 and He-6 - U-238. Our calculation indicates that the fusion cross section is slightly hindered by the presence of weakly bound neutrons. The present results nicely agree with recent measurements.