New description of four-body break-up reaction

摘要

We present a new method of smoothing discrete breakup cross sections calculated by the method of continuum-discretized coupled-channels. In the four-body breakup reaction of ~(12)C(~(6)He, nn~(4)He) at E_(in) velence 229.8 MeV, the continuous breakup cross section is evaluated as a function of the excitation energy of ~(6)He. Convergence of the cross section with respect to extending the modelspace is also confirmed.