Universal Lepton Asymmetry: New Constraints from the Cosmic Microwave Background and Primordial Nucleosynthesis

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dc.creatorKajino, T.
dc.creatorOrito, M.
dc.creatorMathews, G. J.
dc.creatorBoyd, R. N.
dc.date2002-02-06
dc.date.accessioned2026-07-07T02:02:41Z
dc.date.available2026-07-07T02:02:41Z
dc.descriptionWe study the primordial nucleosynthesis and cosmic age in the presence of a net lepton asymmetry as well as baryon asymmetry. We explore a previously unnoted region of the parameter space in which very large baryon densities $0.1 \le Ω_b \le 1$ can be accommodated within the light-element constraints from primordial nucleosynthesis. This parameter space consists of $ν_μ$ and $ν_τ$ degeneracies with a small $ν_e$ degeneracy. Constraints from cosmic microwave background fluctuations are also discussed (orito00).
dc.descriptionProceedings of COSMO-01, Rovaniemi, Finland, August 29 -- September 4, 2001
dc.identifierhttps://arxiv.org/abs/astro-ph/0202114
dc.identifierhttp://arxiv.org/abs/astro-ph/0202114
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/4127
dc.subjectAstrophysics
dc.titleUniversal Lepton Asymmetry: New Constraints from the Cosmic Microwave Background and Primordial Nucleosynthesis
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