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          Institute: MPI für Kernphysik     Collection: Theoretical Particle and Astro-Particle Physics     Display Documents



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ID: 521770.0, MPI für Kernphysik / Theoretical Particle and Astro-Particle Physics
Enhancing Dark Matter Annihilation into Neutrinos
Authors:Lindner, Manfred; Merle, Alexander; Niro, Viviana
Language:English
Date of Publication (YYYY-MM-DD):2010-12-23
Title of Journal:Physical Review D
Volume:82
Issue / Number:12
Start Page:1
End Page:18
Sequence Number of Article:123529
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:We perform a detailed and quasi model-independent analysis of direct annihilation of Dark Matter into neutrinos. Considering different cases for scalar and fermionic Dark Matter, we identify several settings in which this annihilation is enhanced, contrary to some statements in the literature. They key point is that several restrictions of, e.g., a supersymmetric framework do not hold in general. The mass generation mechanism of the neutrinos plays an important role, too. We illustrate our considerations by two examples that are not (as usually) suppressed by the smallness of the neutrino mass, for which we also present a numerical analysis. Our results can be easily used as guidelines for model building.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Kernphysik/Group of M. Lindner
External Affiliations:AlbaNova University Center
Royal Institute of Technology (KTH)
Theoretical Elementary Particle Physics
SE - 106 91 Stockholm
Identifiers:DOI:10.1103/PhysRevD.82.123529
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