• Dependence of pion-nucleus total cross-section on the nuclear density and pion-nucleon off-shell amplitude

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      https://www.ias.ac.in/article/fulltext/pram/007/04/0287-0290

    • Keywords

       

      Pion; total cross-section; (3, 3) resonance; off-shell; nuclear-density

    • Abstract

       

      Total cross-section forπ+, using the high energy approximation, have been calculated for12C and32S at various energies around the (3, 3) resonance in the free pion-nucleon system. It is observed that the shift in energy of the position of the maximum in the pion-nucleus cross-section with respect to that in the free pion-nucleon system depends sensitively on the shape of the nuclear density. Using the realistic density it is further found that the shift due to the off-shell behaviour of the pion-nucleon scattering amplitude is very small. This observation is different from that reported in the literature by other authors.

    • Author Affiliations

       

      B K Jain1

      1. Nuclear Physics Division, Bhabha Atomic Research Centre, Bombay - 400085
    • Dates

       
  • Pramana – Journal of Physics | News

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