Extended optical model analyses for the 11B + 209Bi system at near-Coulomb-barrier energies

Regular Article - Theoretical Physics


In the framework of an extended optical model approach in which the polarization potential is decomposed into direct-reaction (DR) and fusion parts, simultaneous \( \chi^{{2}}_{}\) analyses of elastic scattering and fusion cross-section data for the 11B$ + $209Bi system at near-Coulomb-barrier energies are performed. We show that the DR and fusion potentials extracted from \( \chi^{{2}}_{}\) analyses separately satisfy the dispersion relation and that the threshold anomaly exhibits in both DR and fusion parts. We find that the analyses using only elastic scattering and fusion data can produce reliable predictions of cross-sections even though the direct reaction cross-section data are not complete. By using the extracted DR potential, we investigate the effects of the projectile breakup on fusion cross-sections.


Dispersion Relation 208Pb Elastic Scattering Polarization Potential Fusion Part 
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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  1. 1.Department of PhysicsDong-Eui UniversityBusanKorea
  2. 2.Department of Radiological ScienceKangwon National University at DogyeSamcheokKorea

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