The mass splitting in an 331-TC coupled Scenario

TL;DR

This paper explores mass splitting in 331-TC models by analyzing coupled Schwinger-Dyson equations, showing uniform asymptotic behavior of technifermions and proposing a mechanism for fermion mass differences of around 100 GeV.

Contribution

It extends previous coupled TC-QCD models to 331-TC frameworks, demonstrating uniform asymptotic behavior and potential for large fermion mass splittings.

Findings

Technifermions exhibit the same asymptotic self-energy behavior.

Mass splitting of about 100 GeV between fermion generations is possible.

Coupled Schwinger-Dyson equations provide insights into fermion mass generation.

Abstract

The root of most of the technicolor (TC) problems lies in the way the ordinary fermions acquire their masses, where an ordinary fermion (f) couples to a technifermion (F) mediated by an Extended Technicolor (ETC) boson leading to fermion masses that vary with the ETC mass scale ($M_E$) as $1/M_E^2$. Recently, we discussed a new approach consisting of models where TC and QCD are coupled through a larger theory, in this case the solutions of these equations are modified compared to those of the isolated equations, and TC and QCD self-energies are of the Irregular form, which allows us to build models where ETC boson masses can be pushed to very high energies. In this work we extend these results for 331-TC models, in particular considering a coupled system of Schwinger-Dyson equations, we show that all technifermions of the model exhibit the same asymptotic behavior for TC self-energies. As an application we discuss how the mass splitting of the order $O(100)GeV$ could be generated between the second and third generation of fermions.