Summary
We use current algebra in the off-mass-shell limite (q 2π →0) to study radiative pion-nucleon scattering. We disperse both the pions and the photon thus treating the pions symmetrically. The difficulty connected with gauge invariance arising because of our limiting procedure is discussed. Our calculations, which are valid in the low-energy region, give results which are comparable to that of the static-model predictions.
Riassunto
Si usa l'algebra delle correnti nel limite fuori dello strato delle masse (q 2π →0) per studiare lo scattering irraggiante pione-nucleone. Si decompongono entrambi i pioni ed il fotone trattando i pioni simmetricamente. Si discute la difficoltà connessa con l'invarianza di gauge derivante dal procedimento di limite. I calcoli, validi nella regione a bassa energia, danno risultati confrontabili con quelli delle previsioni del modello statico.
Резюме
Мы используем алгебру токов в пределе (q 2π →0) вне массовой поверхности для изучения радиационного пион-нуклонного рассеяния. Мы рассеиваем и пионы и фотон, тем самым рассматривая пионы симметрично. Обсуждается трудность, связанная с калибровочной инвариантностью, возникающей из-за нашей предельной процедуры. Наши вычисления, кторые справедливы в области низких энергий, дают результаты, сравнимые с предсказаниями статистической модели.
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Traduzione a cura della Redazione.
Перевебено ребакцией.
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Bhargava, S.C. Radiative pion-nucleon scattering. Nuovo Cimento A (1965-1970) 58, 815–823 (1968). https://doi.org/10.1007/BF02825372
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DOI: https://doi.org/10.1007/BF02825372