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The photoproduction processes {fx377-1}, KΛ, KΣ in a dual model with fixed poles, KΛ, KΣ in a dual model with fixed poles

Прицессы фоторождения {fx410-1}, KΛ, KΣ вдальной модели фиксированнымн ие полюсамн. 0211 0105 V 2, KΛ, KΣ вдальной модели фиксированнымн ие полюсамн. 0211 0105 V 2

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Il Nuovo Cimento A (1965-1970)

Summary

The photoproduction of pseudoscalar mesons is investigated in the framework of a dualB 5-model with fixed and Regge poles. A reasonable fit to the available high-energy forward scattering data is presented which is characterized by essentially three parameters. The values of the Regge residues for natural- and unnatural-parity exchanges agree with the values obtained in other photoproduction models. The photoexcitation features of the low-lying baryon resonances derived from our model are in qualitative agreement with experimental results.

Riassunto

Si studia la fotoproduzione dei mesoni pseudoscalari nel contesto di un modelloB 5 duale con poli fissi e di Regge. Si presenta un'approssimazione ragionevole ai dati dispo-nibili dello scattering in avanti di alta energia che è caratterizzato essenzialmente da tre prarametri. I valori dei residui di Regge per scambi di parità naturale ed innaturale concordano con i valori ottenuti in altri modelli della fotoproduzione. Le caratteristiche di fotoeccitazione delle risonanze barioniche inferiori dedotte dal nostro modello sono in accordo quantitativo con i risultati sperimentali.

Резюме

В рамках дуальнойB 5-модеи с фиксированными и Редже полюс амиисслдуется фоторждение псевдоскалярных мезонов. Приво дится разумная под-гонка для имеюшхся данных по рассеянию вперед при высоких знергиях, кохарактепизуется главным обрзом тремя параметрами. Значения вычетов Редже для обменов с естественной и неестественной четностью согласуются с величинами, полученными в других моделях фоторождедения. Особенности фотовозуждениянизколежаших барионных резонансов, выведенные из нашей модели, качестсонтальными результатами.

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Author notes

  1. M. G. Schmidt

    Present address: SLAC, Stanford University, Stanford, Cal., USA

Authors and Affiliations

  1. Institut für Hochenergiephysik, Universität Heidelberg, Heidelberg, Germany

    I. Bender

  2. Institut für Theoretische Physik, Universität Heidelberg, Heidelberg, Germany

    J. G. Körner & M. G. Schmidt

  3. Institut für Theoretische Physik, Freie Universität Berlin, Berlin, Germany

    V. Linke

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  1. I. Bender
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  2. J. G. Körner
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  3. M. G. Schmidt
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  4. V. Linke
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Traduzione a cura della Redazione.

Перевебено ребакууей.

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Bender, I., Körner, J.G., Schmidt, M.G. et al. The photoproduction processes {fx377-1}, KΛ, KΣ in a dual model with fixed poles, KΛ, KΣ in a dual model with fixed poles. Nuov Cim A 16, 377–410 (1973). https://doi.org/10.1007/BF02819427

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  • DOI: https://doi.org/10.1007/BF02819427

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