Summary
We have obtained thes-wave ππ phase shifts up to around 1 GeV, from the Chew-Mandelstam program but with the inputs restricted by the conditions derived from the Veneziano model. These solutions satisfy the elastic unitarity exactly and the five Roskies crossing conditions up to the order of 10−2 and further are consistent with the available experiments.
Riassunto
Si sono ottenuti gli spostamenti di fase ππ in ondas sino a circa 1 GeV dal programma di Chew-Mandelstam ma con le entrate ristrette dalle condizioni dedotte dal modello di Veneziano. Queste soluzioni soddisfano esattamente l'unitarietà elastica e le cinque condizioni d'incrocio di Roskies sino all'ordine 10−2 ed inoltre concordano con gli esperimenti disponibili.
Резюме
Из программы Чу-Манделстама мы получилиs-волновые ππ фазовые сдвиги до энергий, порядка 1 ГэВ, но с исходными данными, ограниченными условиями, выведенными из модели Венециано. Эти решения точно удовлетворяют упругой унитарности и пяти перекрестным условиям Роскиеса с точностью до 10−2, и, следовательно, согласуются с имеющимися экспериментами.
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Supported in part by the U.S. Atomic Energy Commission (Report No. NYO-2262TA-235).
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Jen, C.L., Kang, K. A model for thes-wave pion-pion phase shifts. Nuov Cim A 3, 425–440 (1971). https://doi.org/10.1007/BF02813702
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DOI: https://doi.org/10.1007/BF02813702