Direct/indirect detection signatures of nonthermally produced dark matter

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dc.creatorNagai, Minoru
dc.creatorNakayama, Kazunori
dc.date2008-07-10
dc.date2008-09-22
dc.date.accessioned2026-07-07T11:52:27Z
dc.date.available2026-07-07T11:52:27Z
dc.descriptionWe study direct and indirect detection possibilities of neutralino dark matter produced non-thermally by e.g. the decay of long-lived particles, as is easily implemented in the case of anomaly or mirage mediation models. In this scenario, large self-annihilation cross sections are required to account for the present dark matter abundance, and it leads to significant enhancement of the gamma-ray signature from the Galactic Center and the positron flux from the dark matter annihilation. It is found that GLAST and PAMELA will find the signal or give tight constraints on such nonthermal production scenarios of neutralino dark matter.
dc.description14 pages, 12 figures; typos corrected, reference added; to appear in PRD
dc.identifierhttps://arxiv.org/abs/0807.1634
dc.identifierhttp://arxiv.org/abs/0807.1634
dc.identifierPhys.Rev.D78:063540,2008
dc.identifierdoi:10.1103/PhysRevD.78.063540
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204234
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleDirect/indirect detection signatures of nonthermally produced dark matter
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