Browsing by Author "Karunatileke, N.G.J."

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    Physical Interpretation of Anomalous Absorption of Partial Waves by Nuclear Optical Potential,
    (University of Kelaniya, 2008) Piyadasa, R.A.D.; Munasinghe, J.; Karunatileke, N.G.J.
    Anomalous absorption of light ion partial waves by the nuclear optical potential is an interesting phenomenon showing striking systematic in various parameter planes. However, the theoretical description of this phenomenon is extremely difficult. In this contribution, we address the problem of its physical interpretation. It is shown that the zero of the S-matrix element associated with the anomalous absorption of a partial wave is due to the destructive interference of the reflected waves, from the innermost turning point and the outermost turning point, in the asymptotic region when WKB approximation is feasible.