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Low-energy theorem for radiative decays of hyperons

Теорема малых энергий для радиационных распадов гиперонов

  • Published:
Il Nuovo Cimento A (1965-1970)

Summary

The leading term in an expansion of the exact amplitude for charged hyperon decays, B→B′+γ (‖ΔS‖=1), in powers of ωγ is computed. It coincides precisely with the result of the pole model for the parity-conserving amplitude. The physical validity of the expansion is discussed.

Riassunto

Si calcola il termine principale in uno sviluppo in potenze di ωγ dell’ampiezza esatta per il decadimento degli iperoni carichi, B→B′+γ (‖ΔS‖=1). Esso coincide precisamente con il risultato del modello polare per l’ampiezza che conserva la parità. Si discute la validità fisica dello sviluppo.

Резюме

Вычисляется главный член в разложении точной амплитуды для распадов заряженных гиперонов, B→B′+γ (|ΔS|=1), по степеням ωγ. Этот член точно совпадает с результатом полюсной модели для сохраняющей четность амплитуды. Обсуждается физическая обоснованность разложения.

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Literatur

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Author information

Author notes

  1. J. Leal Ferreira

    Present address: Instituto de Fisica Teórica, São Paulo

  2. J. Soffer

    Present address: Faculté des Sciences, CNRS, Marseille

Authors and Affiliations

  1. Department of Physics and Astronomy, University of Maryland, College Park, Md.

    J. Leal Ferreira & J. Soffer

Authors
  1. J. Leal Ferreira
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  2. J. Soffer
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Additional information

Supported in part by the USAF, under contract AFOSR 500-66, and by the Conselho Nacional de Pesquisas, Brasil.

Traduzione a cura della Redazione.

Перебебено ребакцией.

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Ferreira, J.L., Soffer, J. Low-energy theorem for radiative decays of hyperons. Nuovo Cimento A (1965-1970) 57, 146–153 (1968). https://doi.org/10.1007/BF02824443

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  • DOI: https://doi.org/10.1007/BF02824443

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