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High Energy Physics - Theory

arXiv:hep-th/0512038 (hep-th)
[Submitted on 4 Dec 2005 (v1), last revised 6 Feb 2006 (this version, v2)]

Title:Possible evidence for "dark radiation" from Big Bang Nucleosynthesis Data

Authors:V.V. Flambaum, E.V. Shuryak
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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.
Comments: We found that references to some nhumbers from unpublished ref.3 in v1 lead to confusion of some readers: we decided to removed those in v2
Subjects: High Energy Physics - Theory (hep-th); Astrophysics (astro-ph); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph); Nuclear Theory (nucl-th)
Cite as: arXiv:hep-th/0512038
  (or arXiv:hep-th/0512038v2 for this version)
  https://doi.org/10.48550/arXiv.hep-th/0512038
Journal reference: Europhys.Lett.74:813-816,2006
Related DOI: https://doi.org/10.1209/epl/i2006-10031-y

Submission history

From: Edward Shuryak [view email]
[v1] Sun, 4 Dec 2005 22:45:09 UTC (5 KB)
[v2] Mon, 6 Feb 2006 16:44:44 UTC (6 KB)
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