Including gauge-group parameters into the theory of interactions: an alternative mass-generating mechanism for gauge fields

We reformulate the gauge theory of interactions by introducing the gauge group parameters into the model. The dynamics of the new “Goldstone‐like” bosons is accomplished through a non‐linear σ‐model Lagrangian. They are minimally coupled according to a proper prescription which provides mass terms to the intermediate vector bosons without spoiling gauge invariance. The present formalism is explicitly applied to the Standard Model of electroweak interactions.