# Dynamical Generation of Elementary Fermion Mass: First Lattice Evidence

## TL;DR

This paper presents lattice simulation evidence for a non-perturbative mechanism that dynamically generates elementary fermion masses and weak boson masses in gauge-fermion-scalar models, suggesting new physics beyond the Standard Model.

## Contribution

First lattice evidence demonstrating a non-perturbative mass generation mechanism for elementary particles in gauge-fermion-scalar models.

## Key findings

- Fermion mass is dynamically generated in the Nambu-Goldstone phase.
- Weak boson masses are generated in models with electro-weak interactions.
- A non-perturbative mechanism for mass generation is demonstrated from first principles.

## Abstract

Using lattice simulations we demonstrate from first principles the existence of a non-perturbative mechanism for elementary particle mass generation in models with gauge fields, fermions and scalars, if an exact invariance forbids power divergent fermion masses and fermionic chiral symmetries broken at UV scale are maximally restored. We show that in the Nambu-Goldstone phase a fermion mass term, unrelated to the Yukawa operator, is dynamically generated. In models with electro-weak interactions weak boson masses are also generated opening new scenarios for beyond the Standard Model physics.