Dark Matter, Modified Gravity and the Mass of the Neutrino

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dc.creatorFerreira, P. G
dc.creatorSkordis, C.
dc.creatorZunckel, C.
dc.date2008-06-01
dc.date.accessioned2026-07-07T12:57:57Z
dc.date.available2026-07-07T12:57:57Z
dc.descriptionIt has been suggested that Einstein's theory of General Relativity can be modified to accomodate mismatches between the gravitational field and luminous matter on a wide range of scales. Covariant theories of modified gravity generically predict the existence of extra degrees of freedom which may be interpreted as dark matter. We study a subclass of these theories where the overall energy density in these extra degrees of freedom is subdominant relative to the baryon density and show that they favour the presence of massive neutrinos. For some specific cases (such as a flat Universes with a cosmological constant) one finds a conservative lower bound on the neutrinos mass of $m_ν>0.31$ eV.
dc.description5 pages, 2 figures, 2 tables, submitted to Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0806.0116
dc.identifierhttp://arxiv.org/abs/0806.0116
dc.identifierPhys.Rev.D78:044043,2008
dc.identifierdoi:10.1103/PhysRevD.78.044043
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/225081
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDark Matter, Modified Gravity and the Mass of the Neutrino
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