Theta term instead of the Higgs field in Electroweak theory

TL;DR

This paper explores an alternative electroweak theory where the Higgs field is replaced by topological monopole excitations influenced by a theta-term, offering a novel perspective on symmetry breaking.

Contribution

It introduces a model where monopoles and a theta-term replace the Higgs field in electroweak theory, providing a new approach to symmetry breaking without fundamental scalars.

Findings

Monopoles can act as Higgs field analogs in electroweak theory.

The theta-term induces topological charge in monopoles.

This approach offers a scalar-free mechanism for electroweak symmetry breaking.

Abstract

We consider the electroweak theory without fundamental scalar field. The topological excitation of the SU(2)*U(1) theory (the monopole) plays the role of the Higgs field, it carries the SU(2)*U(1) topological charge due to the theta--term of the special type.