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Analytic behavior of the scattering amplitude at zero energy

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Il Nuovo Cimento (1955-1965)

Summary

It is shown that the scattering amplitude has a two-sheeted branch point at zero kinetic energy. The analytic continuation into the second sheet is discussed in detail.

Riassunto

Si mostra. che l’ainpiezza di scattering ha un branching a due foglietti nel punto di energia cinetica zero. Si discute dettagliatainente la continuazione analitica nel secondo foglietto.

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Authors and Affiliations

  1. Institute for Advanced Study, Princeton, N. J.

    W. Zimmermann

Authors
  1. W. Zimmermann
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Additional information

A short report on this work has been published in theProc. of the Rochester Conference (1960), p. 351. Several of the results have been obtained independently in ref. (1–3).

On leave of absence from Institut für theor. Physik der UniversitÄt, Hamburg.

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Zimmermann, W. Analytic behavior of the scattering amplitude at zero energy. Nuovo Cim 21, 249–273 (1961). https://doi.org/10.1007/BF02832552

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  • DOI: https://doi.org/10.1007/BF02832552

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