Repurposing lattice QCD results for composite phenomenology

TL;DR

This paper summarizes lattice QCD results for SU(3) gauge theories with heavy fermions, aiding the development of models with similar strong dynamics, such as twin Higgs models, by providing relevant mass and matrix element data.

Contribution

It compiles and contextualizes existing lattice QCD results for SU(3) with heavy fermions, facilitating their application in composite phenomenology models.

Findings

Lattice QCD results for SU(3) with heavy fermions are summarized.

These results are relevant for models like twin Higgs with N=3.

The paper aids in applying lattice data to beyond Standard Model theories.

Abstract

A number of proposed extensions of the Standard Model include new strongly interacting dynamics, in the form of SU(N) gauge fields coupled to various numbers of fermions. Often, these extensions allow N = 3 as a plausible choice, or even require N = 3, such as in twin Higgs models, where the new dynamics is a "copy" of QCD. However, the fermion masses in such a sector are typically different from (often heavier than) the ones of real-world QCD, relative to the confinement scale. Many of the strong interaction masses and matrix elements for SU(3) at heavy fermion masses have already been computed on the lattice, typically as a byproduct of the approach to the physical point of real QCD. We provide a summary of these relevant results for the phenomenological community.