Time-Dependent Correlated Gaussian Approach to the Nuclear Response of Few-Nucleon Systems

Nuclear responses involve the information on nuclear dynamics as well as underlying interactions. To describe them theoretically, one faces the difficulty in treating many-body continuum states. A newly developed time-dependent correlated Gaussian basis allows us to describe the response function without explicit construction of the many-body continuum states. As simple examples, the photoabsorption reactions of ²H and ³He are presented. In both cases, the calculations are remarkably improved compared to those with time-independent correlated Gaussian. (author)