@Article{Choi_etal2010,
author="Choi, K. Y.
and Lopez-Fogliani, D. E.
and Mu{\~{n}}oz, C.
and Ruiz de Austri, R.",
title="Gamma-ray detection from gravitino dark matter decay in the $\mu$nu SSM",
journal="Journal of Cosmology and Astroparticle Physics",
year="2010",
publisher="Iop Publishing Ltd",
volume="03",
number="3",
pages="028--14pp",
optkeywords="dark matter theory; supersymmetry and cosmology; gamma ray experiments",
abstract="The $\mu$nu SSM provides a solution to the mu-problem of the MSSM and explains the origin of neutrino masses by simply using right-handed neutrino superfields. Given that R-parity is broken in this model, the gravitino is a natural candidate for dark matter since its lifetime becomes much longer than the age of the Universe. We consider the implications of gravitino dark matter in the $\mu$nu SSM, analyzing in particular the prospects for detecting gamma rays from decaying gravitinos. If the gravitino explains the whole dark matter component, a gravitino mass larger than 20 GeV is disfavored by the isotropic diffuse photon background measurements. On the other hand, a gravitino with a mass range between 0.1 -- 20 GeV gives rise to a signal that might be observed by the FERMI satellite. In this way important regions of the parameter space of the $\mu$nu SSM can be checked.",
optnote="ISI:000276103000006",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=464), last updated on Fri, 28 Jun 2019 07:18:44 +0000",
issn="1475-7516",
doi="10.1088/1475-7516/2010/03/028",
opturl="http://lanl.arxiv.org/abs/0906.3681",
opturl="https://doi.org/10.1088/1475-7516/2010/03/028",
language="English"
}