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An analytic ππ dual amplitude

Аналитическая пп дуальная амплитуда

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

Summary

A ππ dual amplitude of the modified CHKZ type is introduced and investigated. It reduces to the Lovelace-Veneziano model in the narrow-resonance limit. The amplitude is found to satisfy the Breit-Wigner resonance form at both the ρ and f resonances, predicting a mass relation which is reasonably satisfied experimentally. The Breit-Wigner form test fails at the g-resonance.

Riassunto

Si introduce e si studia un'ampiezza duale ππ del tipo di CHKZ modificato. Essa si riduce al modello di Veneziano nel limite della risonzanza stretta. Si trova che l'ampiezza soddisfa la forma della risonanza di Breit-Wigner sia alla risonanza ρ che alla f, predicendo una relazione delle masse che è ragionevolmente soddisfatta sperimentalmente. La prova della forma di Breit-Wigner fallisce alla risonanza g.

Резюме

Вводится и исследуется ππ дуальная амплитуда, модифицированного CHKZ типа. Рассмотрение приводит к модели Лавлейса-Венециано в пределе узкого резонанса. Получается, что рассматриваемая амплитуда удовлетворяет резонансной форме Брейта-Вигнера в резонансах ρ и f, что дает предсказания для соотношения масс, которое довольно хорошо соответствует эксперименту. Проверка формы Брейта-Вигнера в g резонансе не имела успеха.

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Taha, M.O., Tahir, A. An analytic ππ dual amplitude. Nuov Cim A 13, 679–688 (1973). https://doi.org/10.1007/BF02784096

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  • DOI: https://doi.org/10.1007/BF02784096

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