Spontaneous localization on a brane via a gravitational mechanism

TL;DR

This paper proposes a new gravitational mechanism for spontaneous localization of particles and gravitons on a brane, providing a high-energy resolution of braneworlds with stable induced gravity without pathologies.

Contribution

It introduces a novel gravitational localization mechanism for particles and gravitons on a brane, addressing stability and pathology issues in braneworld models.

Findings

Successful construction of a braneworld with induced gravity

Localization of gauge bosons and gravitons via gravitational effects

Identification of stability conditions related to brane mass

Abstract

In this letter we introduce a novel way to spontaneously localize particles (including gauge bosons) and gravitons kinetic terms on a four-dimensional brane via a gravitational mechanism. The model underlying this localization mechanism can be considered as a high-energy resolution of the so-called braneworlds scenario. In particular, we show how to construct a braneworld with induced gravity without pathologies. Finally, we argue that the brane is only stable if its own mass does not exceed a critical value related to the particles-gravity couplings.