Scalar Kaluza-Klein modes in a multiply warped braneworld

TL;DR

This paper analyzes the spectrum of scalar Kaluza-Klein modes in a six-dimensional multiply warped braneworld, revealing a unique split into two branches due to warping, with potential collider phenomenology implications.

Contribution

It introduces a detailed calculation of KK modes in a multiply warped six-dimensional spacetime, highlighting a novel spectral splitting feature.

Findings

KK spectrum splits into two closely spaced branches

Distinct spectral feature compared to five-dimensional models

Potential implications for collider experiments

Abstract

The Kaluza-Klein (KK) modes of a massive scalar field on a 3-brane embedded in six dimensional multiply warped spacetime are determined. Due to the presence of warping along both the extra dimensions the KK mass spectrum splits into two closely spaced branches which is a distinct feature of this model compared to the five dimensional Randall-Sundrum model. This new cluster of the KK mode spectrum is expected to have interesting phenomenological implications for the upcoming collider experiments. Such a scenario may also be extended for even larger number of orbifolded extra dimensions.