A general parametrization for the long-range part of neutrinoless double beta decay
Abstract
Double beta decay has been proven to be a powerful tool to constrain B-L violating physics beyond the standard model. We present a representation for the long-range part of the general 0ββ decay rate allowed by Lorentz-invariance. Combined with the short range part this general parametrization in terms of effective B-L violating couplings will provide the 0ββ limits on arbitrary lepton number violating theories.
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