A Large Mass Hierarchy from a Small Extra Dimension

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dc.creatorRandall, Lisa
dc.creatorSundrum, Raman
dc.date1999-05-04
dc.date.accessioned2026-07-07T11:35:40Z
dc.date.available2026-07-07T11:35:40Z
dc.descriptionWe propose a new higher-dimensional mechanism for solving the Hierarchy Problem. The Weak scale is generated from a large scale of order the Planck scale through an exponential hierarchy. However, this exponential arises not from gauge interactions but from the background metric (which is a slice of AdS_5 spacetime). This mechanism relies on the existence of only a single additional dimension. We demonstrate a simple explicit example of this mechanism with two three-branes, one of which contains the Standard Model fields. The experimental consequences of this scenario are new and dramatic. There are fundamental spin-2 excitations with mass of weak scale order, which are coupled with weak scale as opposed to gravitational strength to the standard model particles. The phenomenology of these models is quite distinct from that of large extra dimension scenarios; none of the current constraints on theories with very large extra dimensions apply.
dc.description9 pages, LaTex
dc.identifierhttps://arxiv.org/abs/hep-ph/9905221
dc.identifierhttp://arxiv.org/abs/hep-ph/9905221
dc.identifierPhys.Rev.Lett.83:3370-3373,1999
dc.identifierdoi:10.1103/PhysRevLett.83.3370
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/198669
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleA Large Mass Hierarchy from a Small Extra Dimension
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