Measurement and microscopic analysis of the B (p,p) reaction at Ep=150MeV.II Depolarization in elastic scattering from odd-A nuclei

The polarization-transfer coefficient Dnn' in the elastic scattering of 150-MeV protons from 11B has been measured in the angular range 5º<theta c.m.<31º. Significant deviations of Dnn' from unity are observed starting around a center-of-mass scattering angle of 23º. The observed angular variation of Dnn' is analyzed using phenomenological and microscopically generated optical-model potentials to describe the monopole attributes of elastic scattering and to generate the distorted waves used in a distorted-wave approximation evaluation of nonzero multipole contributions to the elastic scattering process. The same approach is used to analyze datasets of Dnn' in elastic scattering from 13C and off 15N, which are available in the literature. The agreement of the fully microscopic analysis with the data is comparable or, in the case of 11B, slightly better than what is achieved with conventional phenomenological optical-model calculations