A Study on the Characteristics of Beryllium Isotopes by Using Extended Optical Model Analyses at Near-coulomb-barrier Energies

초록

Within the framework of an extended optical model, simultaneous chi(2) analyses were performed for elastic scattering and fusion cross section data for the (10)Be+(208)Pb system at near-Coulomb-barrier energies. The result showed that both direct reaction (DR) and fusion potentials extracted from chi(2) analyses separately satisfied the dispersion relation and that the expected threshold anomaly appeared in both the DR and the fusion parts. Using the extracted DR potential, we examined the effects of projectile breakup on the fusion cross-sections, sigma(exp)(F). Finally, the present results for the (10)Be + (208)Pb system were compared with the analysis previously made for the (9)Be + (208)Pb and the (9)Be + (209)Bi systems.

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