Dark Matter Model Selection and the ATIC/PPB-BETS anomaly
arXiv:0812.4200 · doi:10.1088/1475-7516/2009/05/015
Abstract
We argue that we may be able to sort out dark matter models in which electrons are generated through the annihilation and/or decay of dark matter, by using a fact that the initial energy spectrum is reflected in the cosmic-ray electron flux observed at the Earth even after propagation through the galactic magnetic field. To illustrate our idea we focus on three representative initial spectra: (i)monochromatic (ii)flat and (iii)double-peak ones. We find that those three cases result in significantly different energy spectra, which may be probed by the Fermi satellite in operation or an up-coming cosmic-ray detector such as CALET.
19 pages, 8 figures
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Cited by in corpus (10)
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- Bounds on Cross-sections and Lifetimes for Dark Matter Annihilation and Decay into Charged Leptons from Gamma-ray Observations of Dwarf Galaxies
- Is the PAMELA anomaly caused by the supernova explosions near the Earth?
- White Dwarf Pulsars as Possible Cosmic Ray Electron-Positron Factories
- Explaining PAMELA and WMAP data through Coannihilations in Extended SUGRA with Collider Implications
- Dark matter and collider phenomenology of split-UED
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- Galactic Signatures of Decaying Dark Matter
- Sneutrino Dark Matter: Symmetry Protection and Cosmic Ray Anomalies
- On discrepancy between ATIC and Fermi data