Brane oscillations and the cosmic coincidence problem

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dc.creatorMaroto, A. L.
dc.date2004-02-26
dc.date2004-04-16
dc.date.accessioned2026-07-07T11:58:26Z
dc.date.available2026-07-07T11:58:26Z
dc.descriptionWe show that, under general assumptions, in six-dimensional brane-world models with compactified large extra dimensions, the energy density of brane oscillations scales as that of cold dark matter and its present value is compatible with observations. Such value is obtained from the only dimensional scale in the theory, namely, the fundamental scale of gravity in six dimensions $M_6\sim 1$ TeV, without any fine-tuning or the introduction of additional mass scales apart from the large size of the extra dimensions. It has been suggested that the same kind of models could provide also the correct magnitude of the cosmological constant. This observation can be relevant for the resolution of the cosmic coincidence problem in the brane-world scenario.
dc.description5 pages, RevTeX. Comments on the renormalization of the branon mass included. Final version to appear in Phys.Rev.D (R)
dc.identifierhttps://arxiv.org/abs/hep-ph/0402278
dc.identifierhttp://arxiv.org/abs/hep-ph/0402278
dc.identifierPhys.Rev.D69:101304,2004
dc.identifierdoi:10.1103/PhysRevD.69.101304
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206223
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleBrane oscillations and the cosmic coincidence problem
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