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arXiv · 1312.5684

Continuum-Discretized Coupled-Channels calculations with core excitation

R. de Diego·J. M. Arias·J. A. Lay·A. M. Moro
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Abstract

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.

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R. de Diego, J. M. Arias, J. A. Lay, A. M. Moro. 2014-06-27. Continuum-Discretized Coupled-Channels calculations with core excitation. https://doi.org/10.1103/physrevc.89.064609

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