Elastic scattering and breakup of Be 11 on protons at 26.9A MeV

Abstract

The elastic scattering and breakup of the halo nucleus Be11 on protons at an incident energy of 26.9A MeV have been measured. The Be11+p elastic scattering cross sections at various energies, including the present one, are systematically analyzed with the Chapel Hill 89 (CH89) and Koning-Delaroche (KD) global optical model potentials (OMPs), and the corresponding normalization factors are obtained. An extended version of the continuum-discretized coupled-channels (XCDCC) formalism, including dynamic core excitation effects, is applied to analyze the elastic scattering and breakup data. It is found that the core excitation plays a moderate role in the elastic scattering and breakup reaction of the halo nucleus Be11, being consistent with previous results at higher energies.