Evaluation of the photoabsorption cross section of few-nucleon systems with time-dependent method

Nuclear photoabsorption cross sections are important data to investigate nuclear structure. Since a nucleus is excited to discretized and continuum states, one faces the difficulty in treating many-body continuum states. The time-dependent method is one of the methods developed to avoid this problem. The time-dependent Schrodinger equation is solved with basis expansion method using complex-range Correlated Gaussian functions. With these methods, we can calculate photo absorption cross sections of few-nucleon systems without ad hoc assumptions.