The Oklo Constraints on Alpha-Decay Half-Lives
arXiv:nucl-th/0307007
Abstract
The Oklo data constrain the depth of the nuclear potential well to a small margin of error, determined by various unknowns, such as the reactor temperature. However, we show that even these small variations could allow the U-238 half-life to vary by more than one order of magnitude.
7 pages, 2 figures; corrected typos