Observation of neutrinoless double beta decay would be a clear evidence of lepton number non-conservation and as such it would imply the existence of Majorana neutrino masses. In this text we focus on microscopic description of the effective short-range contributions to this rare (and so far hypothetical) nuclear process. In particular, we estimate the limits on corresponding effective couplings given the current experimental sensitivity and we calculate the angular correlation of the outgoing electrons.
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机译：观察中微子双β衰减将是Lepton Number Non-Presentation的明确证据，因此它暗示了Majorana Neutrino Masses的存在。在本文中，我们专注于对这种罕见（迄今为止的）核进程的有效短程贡献的显微描述。特别是，考虑到当前的实验敏感性，并且我们计算出输出电子的角度相关性，估计对应的有效耦合的限制。
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