Possible evidence for `dark radiation` from Big Bang Nucleosynthesis data

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Abstract
We address the emerging discrepancy between the Big Bang Nucleosynthesis data and standard cosmology, which asks for a bit longer evolution time. If this effect is real, one possible implication (in a framework of brane cosmology model) is that there is a "dark radiation" component which is negative and makes few percents of ordinary matter density. If so, all scales of this model can be fixed, provided brane-to-bulk leakage problem is solved.
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Author(s)
Flambaum, Victor
Shuryak, E.V.
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Publication Year
2006
Resource Type
Journal Article
Degree Type
UNSW Faculty