DOUBLE BETA DECAY RATES AS TEST OF THE TIME VARIATION OF FUNDAMENTAL CONSTANTS
Abstract
We study the effect of the variation of fundamental constants, extracted from cosmological models, upon double beta decay rates. It is found that, by assuming the variations of the fundamental constants with time, one may obtain corrections to the calculated values of the double beta decay rates, but only at earlier times. This effect is notorious for the case of a power-law time dependence of the fine structure constant α and of the Fermi constant GF. However, since these models do not predict any effect on today's decay rates, it is concluded that no significant new information may be extracted about them from current values of double beta decay observables.
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