Factorization theorems for high energy nn, \(\gamma p\) and \(\gamma\gamma\) scattering

  • M. M. Block
theoretical physics


The robustness of the factorization theorem for total cross sections, \(\sigma_{nn}/\sigma_{\gamma p}=\sigma_{\gamma p}/\sigma_{\gamma\gamma}\) for nn (the even portion of pp and \({\bar p}p\) scattering), \(\gamma p\) and \(\gamma\gamma\) scattering, originally proved by Block and Kaidalov using an eikonal formalism, is demonstrated. Factorization theorems for the nuclear slope parameter B and \(\rho\), the ratio of the real to the imaginary portion of the forward scattering amplitude, are derived under very general conditions, using analyticity and the optical theorem.


General Condition Total Cross Section Slope Parameter Scattering Amplitude Factorization Theorem 
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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  • M. M. Block
    • 1
  1. 1.Department of Physics and AstronomyNorthwestern UniversityEvanstonUSA

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