Special role of neutron-halo structure in the fragmentation reactions

Based on the quantum molecular dynamics model the special role of neutron-halo structure in the fragmentation reactions was studied. In order to compare and emphasize the special role of neutron halo structure Li-11 in the fragmentation reactions we also studied the fragmentation reactions induced by the stable nucleus B-11 with the same mass and the same incident channel condition. We found that the special neutron-halo structure of Li-11 is of benefit to the fragmentation reactions in the lower energy region, compared to that induced by stable nucleus B-11. However the beneficial role of neutron-halo Li-11 on the fragmentation reactions decreases till to be canceled with the increase of beam energy. The beneficial role of neutron-halo Lu-11 on the fragmention reactions also decreases with increasing target mass and impact parameter.