Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-04-28
Phys.Rev.D68:021304,2003
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, RevTeX; minor changes and additional explanations; version accepted by Phys Rev D Rapid Communications
Scientific paper
10.1103/PhysRevD.68.021304
The cosmological dust has begun to settle. A likely picture is a universe comprised (predominantly) of three components: ordinary baryons ($\Omega_B \approx 0.05$), non-baryonic dark matter ($\Omega_{Dark} \approx 0.22$) and dark energy ($\Omega_{\Lambda} \approx 0.7$). We suggest that the observed similarity of the abundances of ordinary baryons and non-baryonic dark matter ($\Omega_{B}/\Omega_{Dark} \approx 0.20$) hints at an underlying similarity between the fundamental properties of ordinary and dark matter particles. This is necessarily the case if dark matter is identified with mirror matter. We examine a specific mirror matter scenario where $\Omega_B/\Omega_{Dark} \approx 0.20$ is naturally obtained.
Foot Robert
Volkas Raymond R.
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