Search for bb decay with NEMO 3 and SuperNEMO experiments

Details Search for bb decay with NEMO 3 and SuperNEMO experiments Search for bb decay with NEMO 3 and SuperNEMO experiments

2007-10-26

arxiv.org/abs/0710.5090v1

Physics

Nuclear Physics

Nuclear Experiment

Contribution paper for SUSY07 proceedings, 4pages, 4 figures

Scientific paper

NEMO 3 is a double beta decay experiment. A part of low background data was
analysed, preliminary result on bb2nu decay of 130Te obtained: T_{1/2} = 7.6
\+- 1.5(stat) +- 0.8(syst) * 10^{20} y$. No bb0nu signal was observed:
T_{1/2}^{0\nu}(100Mo) > 5.8 *10^{23} y and T_{1/2}^{0\nu}(82Se) > 2.1 * 10^{23}
y (90% C.L.). SuperNEMO project R&D has started.

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