Elsevier

Physics Letters B

Volume 157, Issue 1, 4 July 1985, Pages 4-8
Physics Letters B

Neutrinoless double beta decay and a new limit on the lepton number violation

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Abstract

We have calculated the neutrinoless double beta decay rate of 76Ge. We take into account for the first time a relativistic correction to the nuclear current including weak magnetism. Its effect is to cancel a considerable part of the decay amplitude and we obtain less stringent upper limits on the neutrino Majorana mass and the right-handed weak leptonic current compared with previous calculations.

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Supported by the Bundesministerium für Forschung und Technologie.

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