Summary
Properties of the hadronic electromagnetic current are proposed which fall between those of the algebra of currents and the algebra of fields. The modified Cabibbo-Radicati relation is well saturated withSU 6 states to a first approximation, and an improved approximation, using data from nucleon form factors, gives the γNN * dipole coupling correct to 4%.
Riassunto
Si propongono proprietà della corrente elettromagnetica adronica, che cadono fra quelle dell’algebra delle correnti e dell’algebra dei campi. In prima approssimazione la relazione di Cabibbo e Radicati è ben saturata con stati del gruppoSU 6, ed inoltre una migliorata approssimazione, che sfrutta i dati derivanti dai fattori di forma del nucleone, fornisce l’accoppiamento di dipolo di γNN * corretto al 4%.
Резюме
Предлагаются свойства адронного электромагнитного тока, которые находятся между свойствами алгебры токов и алгебры полей. Вполне возможно произвести насыщение видоизмененного соотношения Кабиббо-Радикати с помощьюSU 6 состояний в первом приближении; и улучшенное приближение, используя данные по нуклонным форм-факторам, дает дипольную связь для γNN * с точностью до 4%.
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The research reported in this document has been sponsored in part by the Air Force Office of Scientific Research OAR through the European Office of Aerospace Research, United States Air Force.
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Barnes, K.J. Current algebra and form factors. Nuovo Cimento A (1965-1970) 58, 595–600 (1968). https://doi.org/10.1007/BF02837658
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DOI: https://doi.org/10.1007/BF02837658