We have calculated the two-neutrino and no-neutrino, lepton-number-nonconserving double beta decay rates for ⁷⁶Ge and ⁸²Se. Our result for the two-neutrino decay of ⁸²Se is in agreement with a recent cloud-chamber measurement and thus in disagreement with the geochemical determination. We find that a constraint on the Majorana mass of the electron neutrino of 〈m〉_ν15 eV follows from the comparison of our calculations and the experimental limits on the neutrinoless decays of ⁷⁶Ge and ⁸²Se.
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Haxton et al. (1981) studied this question.
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