Breakup threshold anomaly in the elastic scattering for the 6Li+90Zr system

Kumawat, H. ; Jha, V. ; Roy, B. J. ; Parkar, V. V. ; Santra, S. ; Kumar, V. ; Dutta, D. ; Shukla, P. ; Pant, L. M. ; Mohanty, A. K. ; Choudhury, R. K. ; Kailas, S. (2008) Breakup threshold anomaly in the elastic scattering for the 6Li+90Zr system Physical Review C, 78 (4). 044617_1-044617_8. ISSN 0556-2813

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Official URL: http://prc.aps.org/abstract/PRC/v78/i4/e044617

Related URL: http://dx.doi.org/10.1103/PhysRevC.78.044617

Abstract

Measurements of elastic scattering for the 6Li+90Zr system has been performed at various energies, namely, 11, 12, 13, 15, 17, 19, 21, 25, and 30 MeV, to study the energy dependence of the interaction potential. Angular distributions have been measured in a wide angular range to extract the behavior of the potential reliably. The data have been analyzed using the phenomenological Woods-Saxon shaped optical potential and the double folding potential. The potential behavior shows the characteristics of the breakup threshold anomaly, namely, the increase in the imaginary potential near the barrier with a small reduction in the real part. Continuum-discretized-coupled-channel (CDCC) calculations give a good description of the measured elastic scattering data and predict large breakup coupling effects. The polarization potentials extracted from the CDCC calculations have been studied for the present system along with those for the 6Li+208Pb, and 6Li+28Si systems, and a similar energy dependence has been obtained for all the cases considered.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:85486
Deposited On:03 Mar 2012 07:37
Last Modified:03 Mar 2012 07:37

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