Gaussian expansion approach to nuclear and Coulomb breakup

Abstract

We present an accurate method of simultaneously treating nuclear and Coulomb breakup of weakly bound nuclei by means of the method of continuum discretized coupled channels with the pseudostate method of discretization. As ${L}^{2}$-type basis functions of expansion of bound and continuum states of the projectile, we take complex-range Gaussian functions which in good approximation form a complete set in a large configuration space which is important for both nuclear- and Coulomb-breakup processes. The accuracy of the method is tested quantitatively for $^{8}\mathrm{B}+^{58}\mathrm{Ni}$ scattering at 25.8 MeV.