Neutron moderation in the Oklo natural reactor and the time variation of α

  title={Neutron moderation in the Oklo natural reactor and the time variation of $\alpha$},
  author={Steve Keith Lamoreaux},
  journal={Physical Review D},
In previous analyses of the Oklo (Gabon) natural reactor to test for a possible time variation of the fine-structure constant $\ensuremath{\alpha},$ a Maxwell-Boltzmann low energy neutron spectrum was assumed. We present here an analysis where a more realistic spectrum is employed and show that the most recent isotopic analysis of samples implies a decrease in $\ensuremath{\alpha},$ over the last $2\ifmmode\times\else\texttimes\fi{}{10}^{9}$ years since the reactor was operating, of… Expand
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