Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2008-07-09
Physics
Nuclear Physics
Nuclear Theory
28 pages, 6 figures, submitted to Physical Review C
Scientific paper
Based on the extended optical model with the double folding potential, in which the polarization potential is decomposed into direct reaction (DR) and fusion parts, simultaneous $\chi^{2}$ analyses are performed of elastic scattering and fusion cross section data for the $^{9}$Be+$^{28}$Si, $^{144}$Sm, and $^{208}$Pb systems at near-Coulomb-barrier energies. We find that the real part of the resultant DR part of the polarization potential is systematically repulsive for all the targets considered, which is consistent with the results deduced from the Continuum Discretized Coupled Channel (CDCC) calculations taking into account the polarization effects due to breakup. Further, it is found that both DR and fusion parts of the extracted polarization potentials satisfy the dispersion relation.
Hong Seung Woo
Kim B. T.
Kim Kang-Soo
So W. Y.
Udagawa Takeshi
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