Elastic scattering and fusion of Be9+Pb208: Density function dependence of the double folding renormalization

R. J. Woolliscroft, B. R. Fulton, R. L. Cowin, M. Dasgupta, D. J. Hinde, C. R. Morton, and A. C. Berriman
Phys. Rev. C 69, 044612 – Published 26 April 2004
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Abstract

Elastic scattering angular distributions of the weakly bound Be9 projectile from Pb208 have been measured for 11 beam energies ranging from 38 to 75MeV. Analysis was carried out with the optical model, employing a double folded microscopic real potential with four different Be9 density functions. The surface strengths of the interaction potentials were consistent and all exhibited a threshold anomaly. However, the renormalization factor required to obtain an optimum fit to the data varied significantly depending upon which Be9 density function was used, cautioning that conclusions about the effect of breakup should not be based solely upon the value of this factor. Fusion cross sections predicted from these potentials were extracted using a barrier penetration model. Comparison with recently published experimental data suggests that the flux removed from complete fusion by breakup is balanced by the flux redirected into the partial fusion channel.

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  • Received 18 December 2001

DOI:https://doi.org/10.1103/PhysRevC.69.044612

©2004 American Physical Society

Authors & Affiliations

R. J. Woolliscroft

  • School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom

B. R. Fulton and R. L. Cowin

  • Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom

M. Dasgupta, D. J. Hinde, C. R. Morton, and A. C. Berriman

  • Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia

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Issue

Vol. 69, Iss. 4 — April 2004

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