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Neutralino annihilation into gamma-rays in the Milky Way and in external galaxies
N. Fornengo, L. Pieri, S. Scopel
We discuss the gamma-ray signal from dark matter annihilation in our Galaxy and in external objects, namely the Large Magellanic Cloud, the Andromeda Galaxy (M31) and M87. We deriv…
Enhancement of Dark Matter Abundance in Scalar-Tensor Dark Energy
R. Catena, N. Fornengo, A. Masiero +2
In Scalar-Tensor theories of gravity, the expansion rate of the universe in the past may differ considerably from the standard one. After imposing the constraints coming from nucle…
Dark Matter Relic Abundance and Scalar-Tensor Dark Energy
R. Catena, N. Fornengo, A. Masiero +2
Scalar-tensor theories of gravity provide a consistent framework to accommodate an ultra-light quintessence scalar field. While the equivalence principle is respected by constructi…
Indirect signals from light neutralinos in supersymmetric models without gaugino mass unification
A. Bottino, F. Donato, N. Fornengo +1
We examine indirect signals produced by neutralino self-annihilations, in the galactic halo or inside celestial bodies, in the frame of an effective MSSM model without gaugino-mass…