Deciphering the minimum of energy of some walking technicolor models

TL;DR

This paper compares the vacuum energy minima of quasi-conformal technicolor models, finding that the Ultraminimal model has a deeper energy minimum, which could indicate a more stable electroweak symmetry breaking mechanism.

Contribution

It analyzes the effective potential for composite operators in different technicolor models to identify which model has the most energetically favorable vacuum state.

Findings

Ultraminimal model has a deeper vacuum energy minimum.

Different models exhibit distinct vacuum energy values.

Results suggest the Ultraminimal model may be more stable.

Abstract

There are quasi-conformal theories, like the Minimal and Ultraminimal Technicolor models, which may break dynamically the gauge symmetry of the Standard Model and at the same time are compatible with electroweak precision data. The main characteristic of this type of models is their fermionic content in one or more higher dimensional representations, therefore it is not immediate to know which model leads to the most attractive channel or the minimum vacuum energy state. We discuss the effective potential for composite operators for these models, verifying that their vacuum energy values are different, with the Ultraminimal model having a deeper minimum of energy.