, Volume 4, Issue 2, pp 58–73 | Cite as

Phenomenology of S and P pion-pion partial wave amplitudes

  • B B Deo
  • J K Mohapatra
Nuclear And Particle Physics


A scheme of parametrization ofππ S andP partial wave amplitudes is proposed. Analytic, crossing and unitarity properties are rigorously satisfied. The analyticity property is made explicit by the use of a conformally mapped variable. Our expressions fit excellently with both phase shift and inelastic curves for centre of mass energy up to 1·4 GeV.


S andP partial waves crossing unitarity analyticity conformally mapped variable 


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Copyright information

© Indian Academy of Sciences 1975

Authors and Affiliations

  • B B Deo
    • 1
  • J K Mohapatra
    • 2
  1. 1.Department of PhysicsUtkal UniversityBhubaneswar
  2. 2.Regional College of EducationBhubaneswar

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