Nuclear and particle physics aspects of the 2nbb-decay of 150Nd

Details Nuclear and particle physics aspects of the 2nbb-decay of 150Nd Nuclear and particle physics aspects of the 2nbb-decay of 150Nd

2007-10-31

arxiv.org/abs/0710.5841v1

AIPConf.Proc.942:28-32,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

Revtex, 4 pages, 2 figures, Contributed to MEDEX'07, Prague, Czech Rep., June 11-14, 2007

Scientific paper

10.1063/1.2805097

A discussion is given on possible realization of the Single State Dominance (SSD) hypothesis in the case of the two-neutrino double beta decay(2nbb-decay) of 150Nd with 1^- ground state of the intermediate nucleus. We conclude that the SSD hypothesis is expected to be ruled out by precision measurement of differential characteristics of this process in running NEMO 3 or planed SuperNEMO experiments unlike some unknown low-lying 1^+ state of 150Pm does exist. This problem can be solved via (d,2He) charge-exchange experiment on 150Sm. Further, we address the question about possible violation of the Pauli exclusion principle for neutrinos and its consequences for the energy distributions of the 2nbb-decay of 150Nd. This phenomenon might be a subject of interest of NEMO 3 and SuperNEMO experiments as well.

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