Photon, Neutrino and Charged Particle Spectra from R-violating Gravitino Decays

We study photonic, neutrino and charged particle signatures from slow decays of gravitino dark matter in supersymmetric theories where R-parity is explicitly broken by trilinear operators. Photons and (anti-)fermions from loop and tree-level processes give rise to spectra with distinct features, whi...

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Veröffentlicht in:arXiv.org 2010-03
Hauptverfasser: N -E Bomark, Lola, S, Osland, P, Raklev, A R
Format: Artikel
Sprache:eng
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Zusammenfassung:We study photonic, neutrino and charged particle signatures from slow decays of gravitino dark matter in supersymmetric theories where R-parity is explicitly broken by trilinear operators. Photons and (anti-)fermions from loop and tree-level processes give rise to spectra with distinct features, which, if observed, can give crucial input on the possible mass of the gravitino and the magnitude and flavour structure of R-violating operators. Within this framework, we make detailed comparisons of the theoretical predictions to the recent experimental data from PAMELA, ATIC and Fermi LAT.
ISSN:2331-8422
DOI:10.48550/arxiv.0911.3376