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      Dark matter production in the early Universe: beyond the thermal WIMP paradigm

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          Abstract

          Increasingly stringent limits from LHC searches for new physics, coupled with lack of convincing signals of weakly interacting massive particle (WIMP) in dark matter searches, have tightly constrained many realizations of the standard paradigm of thermally produced WIMPs as cold dark matter. In this article, we review more generally both thermally and non-thermally produced dark matter (DM). One may classify DM models into two broad categories: one involving bosonic coherent motion (BCM) and the other involving WIMPs. BCM and WIMP candidates need, respectively, some approximate global symmetries and almost exact discrete symmetries. Supersymmetric axion models are highly motivated since they emerge from compelling and elegant solutions to the two fine-tuning problems of the Standard Model: the strong CP problem and the gauge hierarchy problem. We review here non-thermal relics in a general setup, but we also pay particular attention to the rich cosmological properties of various aspects of mixed SUSY/axion dark matter candidates which can involve both WIMPs and BCM in an interwoven manner. We also review briefly a panoply of alternative thermal and non-thermal DM candidates.

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          Reheating an Inflationary Universe

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            Explicit R-parity breaking in supersymmetric models

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              Single explanation for both baryon and dark matter densities

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                Author and article information

                Journal
                2014-06-30
                2014-11-02
                Article
                10.1016/j.physrep.2014.10.002
                1407.0017
                892b15ec-46fa-4343-be9f-77abfc1c3d62

                http://arxiv.org/licenses/nonexclusive-distrib/1.0/

                History
                Custom metadata
                Phys. Rep. 555 (2015) 1
                71 pages with 28 figures
                hep-ph astro-ph.CO

                Cosmology & Extragalactic astrophysics,High energy & Particle physics
                Cosmology & Extragalactic astrophysics, High energy & Particle physics

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