Cosmic Ray Signatures from Decaying Gravitino Dark Matter

Bomark, Nils-Erik; Lola, Smaragda; Osland, Per; Raklev, Are R.
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https://hdl.handle.net/1956/12519
Date
2009
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PoS - Proceedings of Science 2009, EPS-HEP:098  
Abstract
We study the charged cosmic rays arising from the slow decay of gravitino dark matter within supersymmetric scenarios with trilinear R-parity violation. It is shown that operators of the LLE type can very well account for the recent anomalies in cosmic ray electron and positron data reported by PAMELA, ATIC and Fermi LAT, without violating any other bounds. This scenario will soon be tested by the Fermi LAT data on diffuse gamma ray emission.
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Presented at: European Physical Society Europhysics Conference on High Energy Physics. Krakow, Poland, July 16-22, 2009
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Scuola Internazionale Superiore di Studi Avanzati
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Copyright The Authors
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Except where otherwise noted, this item's license is described as Attribution-NonCommercial-ShareAlike CC BY-NC-SA