Profumo, S. (2011) Electrons and dark matter. Il nuovo cimento C, 34 (3). pp. 295-300. ISSN 1826-9885
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Abstract
Recent cosmic ray data, notably from the Pamela and Fermi satellites, indicate that previously unaccounted-for powerful sources in the Galaxy inject high-energy electrons and positrons. Interestingly, this new source class might be related to new fundamental particle physics, and specifically to pair-annihilation or decay of galactic dark matter. I will discuss how this exciting scenario is constrained by Fermi gamma-ray observations, and which astrophysical source counterparts could also be responsible for the high-energy electron-positron excess. In particular, I will review the case for nearby mature pulsars, and the search for anisotropies in the electron-positron arrival directions as a diagnostic between the pulsars and the dark matter scenarios.
| Item Type: | Article |
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| Uncontrolled Keywords: | Dark matter (stellar, interstellar, galactic, and cosmological) ; Elementary particle processes |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 06 Apr 2020 18:53 |
| Last Modified: | 06 Apr 2020 18:53 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/17287 |
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