Neutrinoless Double Beta Decay of 134Xe

Details Neutrinoless Double Beta Decay of 134Xe Neutrinoless Double Beta Decay of 134Xe

2002-04-24

arxiv.org/abs/hep-ph/0204278v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, RevTex

Scientific paper

In view of recent great progress achieved in the experimental study of the neutrinoless double beta decay (0nbb-decay) of 134Xe we discuss theoretical aspects of this process. The light and heavy Majorana neutrino exchange as well as the trilinear R-parity breaking contributions to 0nbb-decay are considered. We show that the sensitivity of the studied process to the signal of lepton number violation is only by factor 2-3 weaker in comparison with the 0nbb-decay of 136Xe. The current limits on effective neutrino mass (light and heavy) and trilinear R-parity violating parameter lambda'_111 deduced from lower limits on the 0nbb-decay half-lifes of various nuclei are reviewed and perspectives of the experimental verification of recently announced evidence of the 0nbb-decay of 76Ge are discussed.

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