Brane world in a texture

TL;DR

This paper explores a five-dimensional brane model influenced by an O(2) texture, demonstrating how the symmetry-breaking scale affects particle hierarchy and gravity localization, with implications for TeV-scale physics.

Contribution

It introduces a novel brane-world scenario with a texture in an extra dimension, analyzing how it shapes particle hierarchy and gravity confinement.

Findings

TeV-scale particles are localized on the negative-tension brane

Massive Kaluza-Klein gravitons have suppressed effects

Gravity appears four-dimensional to observers

Abstract

We study five dimensional brane physics induced by an O(2) texture formed in one extra dimension. The model contains two 3-branes of nonzero tension, and the extra dimension is compact. The symmetry-breaking scale of the texture controls the particle hierarchy between the two branes. The TeV-scale particles are confined to the negative-tension brane where the observer sees gravity as essentially four dimensional. The effect of massive Kaluza-Klein gravitons is suppressed.