ZnWO_4 crystals as detectors for double beta decay and dark matter experiments

F. A. Danevich; V. V. Kobychev; S. S. Nagorny; D. V. Poda; V. I. Tretyak; S. S. Yurchenko; Yu. G. Zdesenko

doi:10.1016/j.nima.2005.01.303

ZnWO_4 crystals as detectors for double beta decay and dark matter experiments

Nuclear Experiment 2011-07-19 v1

Authors: F. A. Danevich , V. V. Kobychev , S. S. Nagorny , D. V. Poda , V. I. Tretyak , S. S. Yurchenko , Yu. G. Zdesenko

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Abstract

Energy resolution, alpha/beta ratio, and the pulse shape discrimination ability of the ZnWO_4 crystal scintillators were studied. The radioactive contamination of a ZnWO_4 crystal was investigated in the Solotvina Underground Laboratory. Possibilities to apply ZnWO_4 crystals for the dark matter and double beta decay searches are discussed. New improved half-life limits on double beta decay in zinc isotopes were established, in particular, for EC\beta^+ decay of 64-Zn as: T_1/2^2nu > 8.9 10^18 yr and T_1/2^0nu > 3.6 10^18 yr, both at 68% CL.

Keywords

ZnWO_4 crystals double beta decay dark matter scintillators pulse shape discrimination half-life limits

Cite

@article{arxiv.nucl-ex/0409014,
  title  = {ZnWO_4 crystals as detectors for double beta decay and dark matter experiments},
  author = {F. A. Danevich and V. V. Kobychev and S. S. Nagorny and D. V. Poda and V. I. Tretyak and S. S. Yurchenko and Yu. G. Zdesenko},
  journal= {arXiv preprint arXiv:nucl-ex/0409014},
  year   = {2011}
}

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16 pages, 6 figures

ZnWO_4 crystals as detectors for double beta decay and dark matter experiments

Abstract

Keywords

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