Three-body breakup of 22C

Abstract

Coulomb breakup excitation functions of 22C are calculated as a function of its ground state energy. We consider three ground states that fall into the recent experimental limit S2n < 0.3 MeV. The ground states are constructed by varying the scattering length value of a 1s1/2 virtual state in 21C. We find enhanced breakup cross sections sensitive to the weakly bound character of the ground state.