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Re/Os constraint on the time variability of the fine-structure constant
Yasunori Fujii1, Akira Iwamoto
1Advanced Research Institute for Science and Engineering, Waseda University, Tokyo, 169-8555 Japan.
Physical Review Letters
|February 3, 2004
Abstract:
We argue that the accuracy by which the isochron parameters of the decay 187Re-->187Os are determined by dating iron meteorites may constrain the possible time dependence of the decay rate and hence of the fine-structure constant alpha, not directly but only in a model-dependent manner. From this point of view, some of the attempts to analyze the Oklo constraint and the results of the quasistellar-object absorption lines are reexamined.