Time-variability of the fine-structure constant expected from the Oklo constraint and the QSO absorption lines

Abstract

The data from the QSO absorption lines indicating a nonzero time-variability of the fine-structure constant has been re-analyzed on the basis of a "damped-oscillator" fit, as motivated by the same type of behavior of a scalar field, dilaton, which mimics a cosmological constant to understand the accelerating universe. We find nearly as good fit to the latest data as the simple weighted mean. In this way, we offer a way to fit the more stringent result from the Oklo phenomenon, as well.

10 pages, 4 figures. Expanded section 2 and added discussion on the Re decay in section 4

References in corpus (3)

• Fine-structure constant variability, equivalence principle and cosmology
• Crossover quintessence and cosmological history of fundamental "constants"
• Varying Fine-Structure Constant and the Cosmological Constant Problem

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• Possible time-variability of the fine-structure constant expected from the accelerating universe
• The variation of the electromagnetic coupling and quintessence
• Estimations of the cosmological parameters from the observational variation of the fine structure constant
• The electromagnetic coupling and the dark side of the Universe