Shrivastava, A. ; Kailas, Swaminathan ; Singh, P. ; Chatterjee, A. ; Navin, A. ; Samanta , A. M. ; Raj, V. Ramdev ; Mandal, S. ; Datta, S. K. ; Awasthi, D. K. (1998) Elastic scattering of 11B from 209Bi in the energy range 49.8 ≤E≤ 84.1 MeV Nuclear Physics A, 635 (4). pp. 411-427. ISSN 0375-9474
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S03759...
Related URL: http://dx.doi.org/10.1016/S0375-9474(98)00173-0
Abstract
The elastic scattering of 11B from 209Bi has been measured at laboratory energies of 49.8, 51.3, 52.2, 52.8, 54.3, 55.8, 59.8, 64.8, 69.8, 74.8 and 84.1 MeV. These data have been analyzed using a microscopic optical model and the energy dependence of the real and the imaginary parts of the optical potential at near barrier energies has been determined. The "threshold anomaly" observed in the real part of the potential is found to be consistent with the dispersion relation which connects the real and the imaginary parts of the potential. Inelastic scattering and transfer reactions have also been measured at energies of 51.3, 55.8, 59.8 and 74.8 MeV. DWBA calculations for the 3- state in 209Bi are made. From the measured transfer probabilities, using a semiclassical approach the strength of the form factors have been obtained. The fusion cross sections have been derived at these energies from the corresponding quasi-elastic scattering angular distribution data. The fusion cross sections calculated using the energy dependent barriers extracted from the energy dependent real parts of the potential compare well with, that determined from quasi-elastic scattering data and are also in good agreement with simplified coupled channels calculation for fusion incorporating important inelastic and transfer channels.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
Keywords: | Nuclear Reactions |
ID Code: | 15644 |
Deposited On: | 13 Nov 2010 12:47 |
Last Modified: | 21 Feb 2011 04:35 |
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