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Production amplitudes in fifth order perturbation theory

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Acta Physica Academiae Scientiarum Hungaricae

Abstract

A decomposition of the five point single loop amplitude into a sum over four point amplitudes is studied for a variety of physical processes involving pions and nucleons derived from a\(\bar \Psi \Psi \varphi \) interaction Lagrangian. Consequences for approximate isobar models of production amplitude are discussed.

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References

  1. L. F. Cook andJ. Tarski, J. Math. Phys.,3, 1, 1962.

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Authors and Affiliations

  1. School o Mathematics and Computer Science, University college of North Wales, Bangor, Gwynedd, U.K.

    J. Cunningham

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  1. J. Cunningham
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Cunningham, J. Production amplitudes in fifth order perturbation theory. Acta Physica 41, 79–86 (1976). https://doi.org/10.1007/BF03157508

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  • DOI: https://doi.org/10.1007/BF03157508

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