Big Bang nucleosynthesis constraints on brane cosmologies

Big Bang nucleosynthesis constraints on brane cosmologies

We examine constraints from Big Bang nucleosynthesis on type II Randall–Sundrum brane cosmologies with both a dark radiation component and a quadratic term that depends on the 5-dimensional Planck mass, M5. Using limits on the abundances of deuterium and helium-4, we calculate the allowed region in...

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Bibliographic Details
Published in:Physics letters. B Vol. 546; no. 1-2; pp. 19 - 22
Main Authors: Bratt, Jonathan D, Gault, A.C, Scherrer, Robert J, Walker, T.P
Format: Journal Article
Language:English
Published: Elsevier B.V 17-10-2002
Online Access:Get full text
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Summary:We examine constraints from Big Bang nucleosynthesis on type II Randall–Sundrum brane cosmologies with both a dark radiation component and a quadratic term that depends on the 5-dimensional Planck mass, M5. Using limits on the abundances of deuterium and helium-4, we calculate the allowed region in the M5–dark radiation plane and derive the precise BBN bound on M5 alone with no dark radiation: M5>13 TeV.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(02)02637-0