Czechoslovak Journal of Physics B

, Volume 26, Issue 11, pp 1262–1270 | Cite as

Model-independent result for the imaginary part of forward πHe4 scattering amplitude in unphysical region

  • S. Dubnička
  • V. A. Meshcheryakov


Evaluation of contributions from dispersion integrals to the real part of forwardπHe4 scattering amplitude is reconsidered. By application of a generalized mean-value theorem to the dispersion integral from the lowest branch point to the elastic threshold, a model-independent conclusion on the imaginary part of forwardπHe4 scattering amplitude in unphysical region is drawn.


Imaginary Part Branch Point Lower Branch Scatter Amplitude Unphysical Region 
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Copyright information

© Academia, Publishing House of the Czechoslovak Academy of Sciences 1976

Authors and Affiliations

  • S. Dubnička
    • 1
    • 2
  • V. A. Meshcheryakov
    • 1
  1. 1.Joint Institute for Nuclear Research, DubnaMoscowU.S.S.R.
  2. 2.Institute of PhysicsSlovak Academy of SciencesBratislava 1Czechoslovakia

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