Kaluza-Klein dark matter and galactic antiprotons
- Laboratory for Subatomic Physics and Cosmology, CNRS-IN2P3 and Universite Joseph Fourier, 53, avenue des Martyrs, 38026 Grenoble Cedex (France)
Extra dimensions offer new ways to address long-standing problems in beyond-the-standard-model particle physics. In some classes of extra-dimensional models, the lightest Kaluza-Klein particle is a viable dark matter candidate. In this work, we study indirect detection of Kaluza-Klein dark matter via its annihilation into antiprotons. We use a sophisticated galactic cosmic ray diffusion model whose parameters are fully constrained by an extensive set of experimental data. We find that models with universal extra dimensions remain unconstrained by cosmic ray antiprotons while low-mass weakly interacting massive particle candidates of a few tens of GeV that arise in Randall-Sundrum geometries can be probed.
- OSTI ID:
- 20713524
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 72, Issue 6; Other Information: DOI: 10.1103/PhysRevD.72.063507; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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