High Energy Electron Signals from Dark Matter Annihilation in the Sun
Description/Abstract
In this paper we discuss two mechanisms by which high energy electrons resulting from dark matter annihilations in or near the Sun can arrive at the Earth. Specifically, electrons can escape the sun if DM annihilates into long-lived states, or if dark matter scatters inelastically, which would leave a halo of dark matter outside of the sun. Such a localized source of electrons may affect the spectra observed by experiments with narrower fields of view oriented towards the sun, such as ATIC, differently from those with larger fields of view such as Fermi. We suggest a simple test of these possibilities with existing Fermi data that is more sensitive than limits from final state radiation. If observed, such a signal will constitute an unequivocal signature of dark matter.
| Creator/Author: | Schuster, Philip ; /SLAC ; Toro, Natalia ; /Stanford U., ITP ; Weiner, Neal ; Yavin, Itay ; /New York U., CCPP |
|---|---|
| Publication Date: | 2012 Apr 09 |
| OSTI Identifier: | OSTI ID: 1038428 |
| Report Number(s): | SLAC-PUB-14939 |
| DOE Contract Number: | AC02-76SF00515 |
| Other Number(s): | Journal ID: ISSN 1550-7998; PRVDAQ; Other: arXiv:0910.1839; TRN: US1201863 |
| Resource Type: | Journal Article |
| Resource Relation: | Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology; Journal Volume: 82; Journal Issue: 11 |
| Research Org: | SLAC National Accelerator Laboratory (SLAC) |
| Sponsoring Org: | USDOE |
| Subject: | 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ANNIHILATION; ELECTRONS; NONLUMINOUS MATTER; SPECTRA; SUN |
| Related Subject: | Phenomenology-HEP,HEPPH |
| Country of Publication: | United States |
| Language: | English |
| Format: | Size: 5 pages |
| Availability: | http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-14939.html |
| Update Date: | 2012 Dec 05 |
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