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- W1625559845 abstract "We present a summary of recent constraints on the value of the fine‐structure constant at the epoch of decoupling from recent observations made by the Wilkinson Microwave Anisotropy Probe (WMAP) satellite. Within the set of models considered, a variation of the value of α at decoupling with respect to the present‐day value is now bounded to be smaller than 2% (6%) at the 95% confidence level. We point out that the existence of an early reionization epoch as suggested by the above measurements will, when more accurate cosmic microwave background polarization data is available, lead to considerably tighter constraints. We find that the tightest possible constraint on α is about 0.1% using CMB data alone—tighter constraints will require further (non‐CMB) priors." @default.
- W1625559845 created "2016-06-24" @default.
- W1625559845 creator A5074081390 @default.
- W1625559845 date "2004-01-01" @default.
- W1625559845 modified "2023-09-26" @default.
- W1625559845 title "Constraints on the Variation of the Fine-structure Constant from Recent CMB Measurements" @default.
- W1625559845 doi "https://doi.org/10.1063/1.1835180" @default.
- W1625559845 hasPublicationYear "2004" @default.
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