WMAP 5-year constraints on time variation of α and m in a detailed recombination scenario

Bibcode
2008PhLB..669..212S
DOI
10.1016/j.physletb.2008.09.051
Scóccola, Claudia G.; Landau, Susana J.; Vucetich, Hector
Bibliographical reference

Physics Letters B, Volume 669, Issue 3-4, p. 212-216.

Advertised on:
11
2008
Number of authors
3
IAC number of authors
0
Citations
25
Refereed citations
20
Description
We study the role of fundamental constants in an updated recombination scenario. We focus on the time variation of the fine structure constant α, and the electron mass m in the early Universe, and put bounds on these quantities by using data from CMB including WMAP 5-yr release and the 2dFGRS power spectrum. We analyze how the constraints are modified when changing the recombination scenario.
Type
Refereed

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