Extended Optical Model Analyses of Elastic Scattering, Direct Reaction,
and Fusion Cross Sections for the 9Be + 208Pb System at Near-Coulomb-Barrier
Energies
Based on the extended optical model approach in which the polarization
potential is decomposed into direct reaction (DR) and fusion parts,
simultaneous χ2 analyses are performed for elastic scattering, DR, and
fusion cross section data for the 9Be+208Pb system at
near-Coulomb-barrier energies. Similar χ2 analyses are also performed
by only taking into account the elastic scattering and fusion data as was
previously done by the present authors, and the results are compared with those
of the full analysis including the DR cross section data as well. We find that
the analyses using only elastic scattering and fusion data can produce very
consistent and reliable predictions of cross sections particularly when the DR
cross section data are not complete. Discussions are also given on the results
obtained from similar analyses made earlier for the 9Be+209Bi system.Comment: 5 figure