Gravity stabilizes itself

TL;DR

This paper demonstrates that the stabilization of an extra spatial dimension can be achieved purely through gravitational dynamics, with the radion's properties linked to higher curvature gravity, potentially observable at TeV colliders.

Contribution

It introduces a novel mechanism for radion stabilization based solely on higher curvature gravitational effects without external fields.

Findings

Radion stabilization is achieved through gravitational dynamics alone.

Radion mass and coupling are in the weak scale, suggesting collider signatures.

Implications for TeV scale physics are discussed.

Abstract

We show that a possible resolution to the stabilization of an extra spatial dimension (radion) can be obtained solely in the context of gravitational dynamics itself without the necessity of introducing any external stabilizing field. In this scenario the stabilized value of the radion field gets determined in terms of the parameters appearing in the higher curvature gravitational action. Furthermore, the mass of the radion field and its coupling to the standard model fields are found to be in the weak scale implying possible signatures in the TeV scale colliders. Some resulting implications are also discussed.