  The effect of core excitation in the elastic scattering and breakup of a
two-body halo nucleus on a stable target nucleus is studied. The structure of
the weakly-bound projectile is described in the weak-coupling limit, assuming a
particle-rotor model. The eigenfunctions and the associated eigenvalues are
obtained by diagonalizing this Hamiltonian in a square-integrable basis
(pseudo-states). For the radial coordinate between the particle and the core, a
transformed harmonic oscillator (THO) basis is used. For the reaction dynamics,
an extension of the Continuum-Discretized Coupled-Channels (CDCC) method, which
takes into account dynamic core excitation and deexcitation due to the presence
of non-central parts in the core-target interaction, is adapted to be used
along with a pseudo-states (PS) basis.
