The Cosmic Coincidence Problem in the Brane World

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dc.creatorPietroni, Massimo
dc.date2002-10-09
dc.date.accessioned2026-07-07T03:48:13Z
dc.date.available2026-07-07T03:48:13Z
dc.descriptionThe so called `cosmic coincidence' problem seems to suggest a coupling between dark energy and dark matter. A possibility could be given by dark matter particles with masses depending exponentially on the scalar field associated to dark energy. If the latter also has an exponential potential, attractor solutions exist with constant Omega_{DM} and Omega_{DE} and negative effective equation of state. Due to the very low mass of the dark energy field, its coupling to baryons should be strongly suppressed. Here we present a natural realization of this scenario in a model with large extra dimensions.
dc.description4 pages, to appear in the Proceedings of the XVIII IAP Colloquium `On the nature of dark energy', Paris, 1-5 July 2002
dc.identifierhttps://arxiv.org/abs/hep-ph/0210147
dc.identifierhttp://arxiv.org/abs/hep-ph/0210147
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/41920
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleThe Cosmic Coincidence Problem in the Brane World
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