Explaining $Ω_{Baryon} \approx 0.2 Ω_{Dark}$ through the synthesis of ordinary matter from mirror matter: a more general analysis

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dc.creatorFoot, R.
dc.creatorVolkas, R. R.
dc.date2004-02-25
dc.date2004-03-25
dc.date.accessioned2026-07-07T11:58:26Z
dc.date.available2026-07-07T11:58:26Z
dc.descriptionThe emerging cosmological picture is of a spatially flat universe composed predominantly of three components: ordinary baryons ($Ω_B \approx 0.05$), non-baryonic dark matter ($Ω_{Dark} \approx 0.22$) and dark energy ($Ω_Λ \approx 0.7$). We recently proposed that ordinary matter was synthesised from mirror matter, motivated by the argument that the observed similarity of $Ω_B$ and $Ω_{Dark}$ suggests an underlying similarity between the fundamental properties of ordinary and dark matter particles. In this paper we generalise the previous analysis by considering a wider class of effective operators that non-gravitationally couple the ordinary and mirror sectors. We find that while all considered operators imply $Ω_{Dark} = $ few$\times Ω_B$, only a subset quantitatively reproduce the observed ratio $Ω_B/Ω_{Dark} \approx 0.20$. The $\sim 1$ eV mass scale induced through these operators hints at a connection with neutrino oscillation physics.
dc.descriptionminor changes, some references added, about 10 pages
dc.identifierhttps://arxiv.org/abs/hep-ph/0402267
dc.identifierhttp://arxiv.org/abs/hep-ph/0402267
dc.identifierPhys.Rev.D69:123510,2004
dc.identifierdoi:10.1103/PhysRevD.69.123510
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206222
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleExplaining $Ω_{Baryon} \approx 0.2 Ω_{Dark}$ through the synthesis of ordinary matter from mirror matter: a more general analysis
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