Summary
Inequalities involving theS- andP-wave pion-pion amplitudes and their first derivatives are obtained from crossing symmetry and positivity properties for some isospin combinations. They can be used to test low-energy models.
Riassunto
Dalla simmetria incrociata e dalle proprietà di positività per alcune combinazioni di isospin si ricavano le disuguaglianze interessanti le ampiezze pione-pione d’ondaS eP e le loro derivate prime. Si possono sfruttare i risultati ottenuti per verificare i modelli di bassa energia.
Реэюме
Иэ кроссинг-симметрии и свойств Положительности для некоторых иэосПиновых комбинаций Получаются неравенства, включаюшиеS иP Парциальные Пион-Пионные амПлитуды и их Первые Проиэводные. Эти неравенства могут быть исПольэованы для Проверки моделей для ниэких Энергий.
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References
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Work supported in part by the Fonds National Suisse de la Recherche Scientifique.
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Auberson, G. Rigorous inequalities on the derivatives ofS- andP-wave amplitudes for π-π scattering. Nuovo Cimento A (1965-1970) 68, 281–292 (1970). https://doi.org/10.1007/BF02754151
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DOI: https://doi.org/10.1007/BF02754151