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EnglishWe reconsider non-thermal production of WIMP dark matter in a systematic way and using a numerical code for accurate computations of dark matter relic densities. Candidates with large pair annihilation rates are favored, suggesting a connection with the anomalies in the lepton cosmic-ray flux detected by Pamela and Fermi. Focussing on supersymmetric models we will consider the impact of non-thermal production on the preferred mass scale for dark matter neutralinos. We have also developed a new formalism to solve the Boltzmann equation for a system of coannihilating species without assuming kinetic equilibrium and applied it to the case of pure Winos.
Aspects of production and kinetic decoupling of non-thermal dark matter / Arcadi, G; Ullio, Piero. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 375(2012), pp. 012044.1-012044.4. ((Intervento presentato al convegno 12th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2011 tenutosi a Munich nel September 2011.
| Titolo: | Aspects of production and kinetic decoupling of non-thermal dark matter | |
| Autori: | Arcadi, G; Ullio, Piero | |
| Rivista: | ||
| Editore: | IOP Publishing | |
| Data di pubblicazione: | 2012 | |
| Volume: | 375 | |
| Pagina iniziale: | 1 | |
| Pagina finale: | 4 | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1088/1742-6596/375/1/012044 | |
| URL: | https://arxiv.org/abs/1111.6532 | |
| Appare nelle tipologie: | 4.1 Contribution in Conference proceedings |
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http://hdl.handle.net/20.500.11767/15360
