The Higgs Mechanism from an extra dimension

TL;DR

This paper explores a model where the Higgs mechanism arises from an extra compact dimension, producing gauge boson masses without a traditional Higgs vacuum expectation value, and introduces a Higgs-like scalar from higher-dimensional fields.

Contribution

It presents a novel extra-dimensional framework generating gauge boson masses and a Higgs-like scalar without relying on the standard Higgs vacuum expectation value.

Findings

Four Goldstone-like scalars are produced from extra dimensions.

W and Z bosons acquire mass through the extra dimension.

A Higgs-like scalar emerges without a Higgs vacuum expectation value.

Abstract

The standard $SU(2) \times U(1)$ fields are considered in 4D plus one extra compact dimension. As a result two basic effects are obtained. First, four Goldstone-like scalars are produced, three of them are used to create longitudinal modes of the $W,Z$ fields, while the fourth becomes the Higgs-like scalar. Second, $W$ and $Z$ get their masses from the extra compact dimension with the standard pattern of symmetry violation. The resulting theory has the same fields as in the standard model, but without the Higgs vacuum average. The properties of the new Higgs scalar and its interaction with fermions are briefly discussed.