Photon, neutrino and charged particle spectra from R-violating gravitino decays
2010 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 686, no 03-feb, 152-161 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2010. Vol. 686, no 03-feb, 152-161 p.
Dark matter, Cosmic rays, Supersymmetry, R-parity violation, Gravitino
IdentifiersURN: urn:nbn:se:su:diva-50685DOI: 10.1016/j.physletb.2010.02.050ISI: 000276377500013OAI: oai:DiVA.org:su-50685DiVA: diva2:382277
authorCount :42010-12-302010-12-302011-05-09Bibliographically approved