• Phase shift analysis ofππ scattering

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      https://www.ias.ac.in/article/fulltext/pram/018/01/0039-0048

    • Keywords

       

      Roskies’ amplitudes; mapped variables; phase shifts; inelasticities; Chew-Mandelstam coupling constant

    • Abstract

       

      A novel approach to energy dependent phase shift analysis ofππ scattering is proposed. Optimised polynomial expansions of Roskies’ amplitudes are given. The parameters of these expansions are searched out by making a fit to the differential cross-sections. Then the transformation matrix between Roskies’ amplitudes and the conventional partial waves is used to compute the phase shifts and inelasticities. Significant improvement is observed in so far as the number of free parameters for a fixed energy phase shift analysis is concerned. Value for the effective Chew-Mandelstam coupling constant, λCM, is also estimated.

    • Author Affiliations

       

      B B Deo1 J K Mohapatra1 2

      1. Department of Physics, Utkal University, Bhubaneswar - 751 004, India
      2. Regional College of Education, Bhubaneswar - 751 007, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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