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      https://www.ias.ac.in/article/fulltext/pram/039/05/0501-0508

    • Keywords

       

      Scattering theory; phase-function method; complex potential; phase shifts

    • Abstract

       

      We consider the scattering problem for absorptive interactions within the framework of phase-function method. A Green’s function approach is used to derive the phase equation. As a case study we apply the algorithm presented on a shallow α-α potential, the real and imaginary parts of which have been deduced from experimental data. The real and imaginary parts of theS-wave phase shift are found to vary smoothly with energy while those forD andG waves show some fluctuations in the low-energy region. It is shown that studies in spatial behaviour of the phase function provide a plausible explanation for the dynamical origin of these fluctuations.

    • Author Affiliations

       

      A K Jana1 J Pal1 T Nandi1 B Talukdar1

      1. Department of Physics, Visva-Bharati University, Santiniketan - 731 235, India
    • Dates

       
  • Pramana – Journal of Physics | News

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