Search for 2-beta Processes in 64Zn with the Help of ZnWO_4 Crystal Scintillator - INSPIRE

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Search for 2-beta Processes in 64Zn with the Help of ZnWO_4 Crystal Scintillator

P. Belli
(
- Gran Sasso
)

2008

5 pages

Published in:

Phys.Lett.B 658 (2008) 193-197

DOI:

10.1016/j.physletb.2007.10.075

View in:

Nuclear Science References

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Abstract: (Elsevier)

Double beta processes in 64 Zn were searched for with the help of a low background ZnWO 4 crystal scintillator (mass of 117 g) at the Gran Sasso National Laboratories of the INFN. Total time of measurements was 1902 h. New improved half-life limits on different modes of double electron capture and electron capture with positron emission were established as: T1/22ν2K⩾6.2×1018 yr , T1/20ν2K⩾4.0×1018 yr , T1/20ν2ε⩾3.4×1018 yr , T1/22νεβ+⩾2.1×1020 yr , and T1/20νεβ+⩾2.2×1020 yr , all at 90% C.L.

29.40.Mc
23.40.-s
Double beta decay
64 Zn
ZnWO 4 crystal scintillators
64Zn
ZnWO4 crystal scintillators

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