Summary
Unitarity and analyticity are used in the context of the multi-Regge hypothesis to imply an asymptotic upper bound on the 3-to-3 amplitude in the helicity-pole—Regge-pole limit. The derivation parallels the one used by Froissart for the 2-to-2 amplitude, but the presence of physical-region singularities and integral inequalities complicates the present case and makes the result rather heuristic.
Riassunto
Si usano l’unitarietà e l’analiticità nel contesto dell’ipotesi di Regge multipla per implicare un limite superiore asintotico all’ampiezza 3 a 3 nel limite polo di elicità-polo di Regge. La deduzione è parallela a quella usata da Froissart per l’ampiezza 2 a 2, ma la presenza di singolarità della regione fisica e di disuguaglianze integrali complica il presente caso e rende il risultato piuttosto euristico.
Реэюме
В свяэи с гипотеэой нескольких полюсов Редже, испольэуется унитар-ность и аналитичность для получения асимптотической верхней границы для амплитуды « 3 в 3 « в пределе « спиральный полюс - полюс Редже «. Вывод про-водится параллельно выводу, испольэованному Фруассаром для амплитуды « 2 в 2 «, но наличие сингулярностей в фиэической области и интегральных неравенств услож-няет рассматриваемый случай и делает реэультат довольно звристическим.
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As written (B.8) is valid forn 1=n 2=1. However the ± prescription and the symmetry inn 1 andn 2 used below are generally true (7).
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This work is supported in part through funds provided by the Atomic Energy Commission under Contract AT (11-1)-3069.
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Patrascioiu, A. Asymptotic upper bound on the 3-to-3 amplitude. Nuov Cim A 15, 249–273 (1973). https://doi.org/10.1007/BF02822899
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DOI: https://doi.org/10.1007/BF02822899