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7Be+9Be scattering measurements were performed at ECM = 13 MeV (Elab = 23.1 MeV). The experiment was carried out in the 8UD Pelletron accelerator of the Institute of Physics of the University of São Paulo with the RIBRAS (Radioactive Ion Beams in Brasil) system. The elastic 9Be(7Be,7Be)9Be and elastic transfer 9Be(7Be,9Be)7Be cross sections were obtained and used to construct the complete angular distribution, in the angular range from 15o to 160o. Optical model calculations were performed using several optical potentials from the literature. Due to the first low lying excited state of 7Be (Ex=0.429 MeV) the elastic cross section cannot be experimentally separated of the inelastic part. However, coupled channel calculations show that the contribution of the inelastic scattering has no major influence on the elastic angular distribution. Finally, the DWBA calculations for elastic transfer provide the two neutrons spectroscopic factors in 9Be. The results indicate that the transfer channel is sensitive to the bound state and optical potentials used in the analysis.

Estudo do espalhamento e transferência elástica para o sistema 7Be+9Be

Estudo do espalhamento e transferência elástica para o sistema ⁷Be+⁹Be