In Mass Varying Neutrinos (MaVaNs) models, the neutrinos are coupled with the quintessence field supposed to be responsible for the acceleration of the Universe. Here we propose a new parameterization for the neutrino mass variation that is independent on the details of the scalar field potential and still captures the essential of most MaVaNs models. We also find an upper limit on the mass variation in the case of decreasing mass models, independent of the particular parameterization. © 2009 Elsevier B.V. All rights reserved.
Mass Varying Neutrinos: a model-independent approach / Lattanzi, Massimiliano. - In: NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS. - ISSN 0920-5632. - 188:C(2009), pp. 40-42. [10.1016/j.nuclphysbps.2009.02.008]
Mass Varying Neutrinos: a model-independent approach
LATTANZI, MASSIMILIANO
2009
Abstract
In Mass Varying Neutrinos (MaVaNs) models, the neutrinos are coupled with the quintessence field supposed to be responsible for the acceleration of the Universe. Here we propose a new parameterization for the neutrino mass variation that is independent on the details of the scalar field potential and still captures the essential of most MaVaNs models. We also find an upper limit on the mass variation in the case of decreasing mass models, independent of the particular parameterization. © 2009 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
