Fundamental scalar field with zero dimension from anomaly cancelations

TL;DR

This paper proposes a novel mechanism for dynamical electroweak symmetry breaking involving zero-dimension scalar fields that cancel Weyl anomalies through non-minimal fermion couplings to gravity.

Contribution

It introduces a new approach where zero-dimension scalar fields from anomaly cancellation enable dynamical symmetry breaking and fermion mass generation.

Findings

Scalar fields cancel Weyl anomaly

Mechanism induces fermion mass terms

Links gravity coupling to electroweak symmetry breaking

Abstract

In this article a novel mechanism for dynamical electroweak symmetry breaking and the ensuing appearance of fermion mass terms in the action is proposed. The action contains massless fermions of the SM coupled to gravity through a new type of non-minimal coupling to the vielbein field. The corresponding coupling constants in our approach become zero-dimension scalar fields. Such scalar fields provide the cancellation of the Weyl anomaly \cite{Boyle:2021jaz}.