Summary
Recently proposed Regge-pole models are tested by means of FESR in π scattering. The crossing odd amplitude does not require more sophisticated models than the pure ρ-exchange model. In the crossing even case, several models can reproduce the data within the same accuracy. We also analyse the K total cross-sections and find that a conventional model allows us to fit the data within the errors (both statistical and systematic).
Riassunto
Per mezzo delle regole di somma ad energia finita si controlla la validità per la diffusione π di modelli a poli di Regge recentemente proposti. L’ampiezza dispari per incrocio non richiede modelli più raffinati del modello a semplice scambio del ϱ. Nel caso pari per incrocio diversi molli possono riprodurre i dati con la stessa precisione. Si analizzano anche le sezioni d’urto totali K e si trova che un modello convenzionale permette di riprodurle entro gli errori (sia statistici che sistematici).
Реэюме
Испольэуя FESR в π рассеянии, проверяются недавно предложенные модели полюсов Редже. Кроссинг-нечетная амплитуда не требует более утонченных моделей, чем модель с чистым ρ-обменом. В кроссинг-четном случае несколько моделей могут воспроиэвести зкспериментальные данные с той же точностью. Мы также аналиэируем полное поперечное сечение K и получаем, что обшепринятая модель поэволяет согласовать зкспериментальные данные в пределах ощибок (как статистических, тах и систематических).
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Restignoli, M., Schiff, D. & Violini, G. High-energy phenomenology of π and K forward scatteringforward scattering. Nuov Cim A 7, 856–866 (1972). https://doi.org/10.1007/BF02728815
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DOI: https://doi.org/10.1007/BF02728815