The Coulomb scattering in momentum space for few-body systems

A new boundary condition method for Coulomb scattering in momentum space is applied to the two-, three- and four-nuclear charged-particle systems. The method is based on the two-potential theory with the short range potential and the rest auxiliary potential which can be handled numerically. We applied the method to obtain the Coulomb phase shifts for the two-body case. Our calculated phase shift is in very good agreement with the analytic one. The extended method to the three- and four-body systems is also discussed.