Structural analysis of C-19 through Coulomb dissociation reactions

摘要

We present a comprehensive study of the Coulomb dissociation reactions induced by C-19 at high energies on heavy targets within the framework of eikonal approximation approach with a motive to investigate its ground state structure. Various observables of the reaction are well described by assuming the predominance of [0(+) circle times 2s(1)/2] core-neutron spin coupling in the ground state of C-19. However, the tail observed in the longitudinal momentum distribution of C-18 coming from the breakup of C-19 is better explained by considering the coupling of 2s(1/)2 neutron with highly excited 0(2)+ (E-x = 4.0 MeV) core state. (C) 2008 Elsevier B.V. All rights reserved.