The Standard Model and Fermion Masses

TL;DR

This paper proposes a reformulation of the Standard Model where fermion masses are introduced without Yukawa interactions, relying on a generalized covariant derivative to maintain gauge invariance, and restricting Higgs interactions to gauge bosons.

Contribution

It introduces a novel approach to fermion mass generation in the Standard Model without Yukawa couplings, modifying the covariant derivative for gauge invariance.

Findings

Higgs bosons interact only with gauge bosons, gluons, and photons.

Fermion masses are incorporated without Yukawa interactions.

Gauge invariance is preserved through a generalized covariant derivative.

Abstract

The paper formulates the Standard Model with massive fermions without introduction of the Yukawa interaction of Higgs bosons with fermions. For invariance to be preserved in the newly stated theory, the covariant derivative should be generalized, as follows. With such approach, Higgs bosons are responsible only for the gauge invariance of the boson sector of the theory and interact only with gauge bosons, gluons and photons.