Effective action approach to dynamical generation of fermion mixing

TL;DR

This paper explores a mechanism for dynamically generating fermion flavor mixing using the Nambu--Jona Lasinio model, employing both operator and functional integral formalisms to analyze the effective action.

Contribution

It introduces a novel approach to fermion mixing via the effective action within the NJL model, combining operator and functional methods.

Findings

Demonstrates dynamical flavor mixing generation

Utilizes one-loop effective action analysis

Provides insights into fermion mass and mixing dynamics

Abstract

In this paper we discuss a mechanism for the dynamical generation of flavor mixing, in the framework of the Nambu--Jona Lasinio model. Our approach is illustrated both with the conventional operatorial formalism and with functional integral and ensuing one-loop effective action. The results obtained are briefly discussed.