Asymmetrical large extra dimensions
Joseph Lykken, Satyanarayan Nandi
TL;DR
This paper explores a model with two different scales of large extra dimensions, analyzing astrophysical constraints and potential collider signals for such a scenario.
Contribution
It introduces a novel framework with a hierarchy of large extra dimensions, including a millimeter-scale and TeV-scale dimensions, and studies their phenomenological implications.
Findings
Astrophysical constraints limit the size of extra dimensions.
Potential collider signals include Kaluza-Klein excitations of gauge bosons.
The scenario remains viable within certain parameter ranges.
Abstract
We study scenarios in which there is a hierarchy of two sets of large compactified extra dimensions. One particularly interesting case has a single millimeter size extra dimension and five TeV^{-1} size dimensions. The Standard Model gauge bosons have Kaluza-Klein excitations with respect to one of the TeV scale dimensions. We discuss astrophysical constraints on this scenario, as well as prospects for signals at future high energy colliders.
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