Results of a search for the neutrinoless decay of Ge-76 to the first excited state of Se-76 in the Canfranc tunnel

Morales, A.; Morales, J.; Nunez-Lagos, R.; Puimedon, J.; Villar, J.A.; Larrea, A.; Garcia, E.; Saenz, C.

doi:10.1007/BF02817441

Results of a search for the neutrinoless decay of Ge-76 to the first excited state of Se-76 in the Canfranc tunnel

1991

5 pages

Published in:

Nuovo Cim.A 104 (1991) 1581-1585

DOI:

10.1007/BF02817441

View in:

Nuclear Science References

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Abstract: (Springer)

To further investigate a small, unexplained coincidence effect close to the region where a neutrinoless, 0+→2+76Ge double beta decay should be expected which we found in a previous experiment in the Frejus tunnel, a new experiment, with improved background and efficiency conditions, has been performed in the Canfranc tunnel. It is conclude that aftert=6062.5 hours of counting time the Frejus peak has been rejected as a neutrinoless double beta effect at the confidence level of 95%.

germanium: semileptonic decay
semileptonic decay: germanium
final state: (0neutrino)
(0neutrino): final state
selenium: excited nucleus
energy spectrum
deep underground detector: experimental results

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