Superweakly Interacting Massive Particles

Jonathan L. Feng, Arvind Rajaraman, and Fumihiro Takayama
Phys. Rev. Lett. 91, 011302 – Published 3 July 2003

Abstract

We investigate a new class of dark matter: superweakly interacting massive particles (super-WIMPs). As with conventional WIMPs, super-WIMPs appear in well motivated particle theories with naturally the correct relic density. In contrast to WIMPs, however, super-WIMPs are impossible to detect in all conventional dark matter searches. We consider the concrete examples of gravitino and graviton cold dark matter in models with supersymmetry and universal extra dimensions, respectively, and show that super-WIMP dark matter satisfies stringent constraints from big bang nucleosynthesis and the cosmic microwave background.

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  • Received 1 March 2003

DOI:https://doi.org/10.1103/PhysRevLett.91.011302

©2003 American Physical Society

Authors & Affiliations

Jonathan L. Feng, Arvind Rajaraman, and Fumihiro Takayama

  • Department of Physics and Astronomy, University of California, Irvine, California 92697, USA

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Vol. 91, Iss. 1 — 4 July 2003

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