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Unified picture of ordinary and dark matter genesis

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Abstract

Dark matter can be constituted by the baryons of mirror world, parallel hidden sector which has the same (or similar) microphysics as that of the observable world. We discuss a mechanism based on the B-L and CP violating out-of-equilibrium particle processes between ordinary and mirror sectors that could generate baryon asymmetries in both worlds, in comparable amounts, within the range \( \Omega '_B /\Omega _B \tilde 1 - 10 \), and thus naturally explain the conspiracy between the baryonic and dark matter fractions in the Universe. Particle interactions between two sectors can be also relevant for a direct detection of dark matter and in addition could induce interesting processes of the ordinary particle oscillations in their mirror partners. Cosmological implications are also discussed.

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  1. Dipartimento di Fisica, Universtità di L’Aquila, 67010 Coppito (AQ), and INFN, 67010, Assergi (AQ), Italy

    Z. Berezhiani

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Berezhiani, Z. Unified picture of ordinary and dark matter genesis. Eur. Phys. J. Spec. Top. 163, 271–289 (2008). https://doi.org/10.1140/epjst/e2008-00824-6

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