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Group-theoretical analysis of elementary particles in an external electromagnetic field

I. The relativistic particle in a constant and uniform field

Теоретико-групповой анализ элементарных частиц во внешнем электромагнитном поле.

I. Релятивистская частица в постоянном и однородном поле

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Il Nuovo Cimento A (1965-1970)

Summary

Two subgroups of the Poincaré group are shown to play a particlar role in the case of charged systems in an external electromagnetic field which is constant and uniform. Projective representations of these subgroups involve the electric charge as a generator of a phase factor. Additivity and superselection rules for charge appear as direct consequences.

Riassunto

Si dimostra che i sottogruppi del gruppo di Poincaré svolgono un ruolo particolare nel caso di sistemi carichi in un campo elettromagnetico esterno costante ed uniforme. Le rappresentazioni proiettive di questi sottogruppi coinvolgono la carica elettrica come generatrice di un fattore di fase. Le regole di additività e di superselezione per la carica appaiono come conseguenze dirette.

Резюме

Показывается, что две подгруппы группы Пуанкаре играют особую роль в случае заряженных систем во внешнем электромагнитном поле, которое является постоянным и однородным. Проективные представления этих подгрупп включают электрический заряд, как генератор фазового можителя. Как прямые следствия, возникают аддитивность и правила супер-отбора для заряда.

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Traduzione a cura della Redazione.

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Bacry, H., Combe, P. & Richard, J.L. Group-theoretical analysis of elementary particles in an external electromagnetic field. Nuovo Cimento A (1965-1970) 67, 267–299 (1970). https://doi.org/10.1007/BF02725178

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  • DOI: https://doi.org/10.1007/BF02725178

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