Summary
The dynamical symmetry breaking of a chiralU 1×U 1 invariant model is considered. Assuming the existence of a massless pseudoscalar bound state, which decouples, and a massive scalar bound state, we deduce sufficient conditions of renormalizability of the symmetry-broken theory using phenomenological Lagrangians. We comment on the feasibility of dealing with these conditions.
Riassunto
Si considera la rottura della simmetria dinamica di un modello chirale invarianteU 1×U 1. Supponendo l’esistenza di uno stato legato pseudoscalare senza massa, che si sdoppia, e di uno stato legato scalare con massa, si derivano le condizioni sufficienti di rinormalizzabilità della teoria a simmetria interrotta usando, lagrangiani fenomenologici. Si discute la possibilità di trattare queste condizioni.
Резюме
Рассматривается нарушение динамической симметрии для киральнойU 1×U 1 инвариантной модели. Преполагая существование псевдоскалярного связанного состояния с нулевой массой и массивного скалярного связанного состояния, мы выводим условия перенормируемости теории с нарушенной симметрией, используя феноменологические лагражианы. Мы обсуждаем возможность использования этих условий.
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Lemmon, J., Mahanthappa, K.T. Dynamical symmetry breaking, renormalizability and phenomenological Lagrangians. Nuov Cim A 27, 349–359 (1975). https://doi.org/10.1007/BF02778248
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DOI: https://doi.org/10.1007/BF02778248