Mass Pattern of the SM Fermions: Flavor Democracy Revisited

TL;DR

This paper revisits the flavor democracy hypothesis in the Standard Model, exploring how adding isosinglet quarks and leptons can explain the mass patterns of fermions, especially for the second and third families.

Contribution

It proposes a model incorporating isosinglet fermions to account for fermion mass hierarchies through small deviations from flavor democracy.

Findings

Masses of second and third family fermions can be explained by small deviations from flavor democracy.

Adding isosinglet quarks and leptons provides a viable mechanism for fermion mass generation.

The model offers a new perspective on the fermion mass hierarchy problem.

Abstract

Mass pattern of the SM fermions is one of the most important mysterious in particle physics. Flavor Democracy could shed light on this mystery. Addition of isosinglet quark and isosinglet lepton give opportunity to obtain masses of charged leptons and quarks of the 2nd and 3rd family due to small deviations of full Flavor Democracy.