Abstract
It is argued that dispersion relations do have some, though limited, predictive power provided that some qualitative features of scattering amplitudes are known or assumed. In the second half of the paper a method is described which can be used in practical calculations. The method is essentially a test of the analyticity of the scattering amplitude. The amplitude is given at lower energies by the experimental data and at asymptotic energies it is represented by an ansatz containing some free parameters.
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The written version of talk has benefited considerably from conversations which the author had with ProfessorHöhler during the meeting at Liblice. I am indebted to him as well as toA. Nogová, P. Lichard andP. Prešnajder for valuable discussions.
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Pišút, J. Can dispersion relations predict something about high energy behaviour of scattering amplitudes?. Czech J Phys 26, 113–116 (1976). https://doi.org/10.1007/BF01595102
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DOI: https://doi.org/10.1007/BF01595102