1. Measurement of theββDecay Half-Life ofTe130with the NEMO-3 Detector
- Author
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Ts. Vylov, O.I. Kochetov, F. Mauger, B. Guillon, J. L. Reyss, V. Kovalenko, B. Richards, G. Szklarz, Jouni Suhonen, F. Piquemal, J. Baker, S. Torre, F. Mamedov, C. Augier, M. Kauer, R. B. Pahlka, Ch. Marquet, Yu. Shitov, V. Vasiliev, A. Chapon, C. Hugon, Z. J. Liptak, Karol Lang, X. Garrido, Ph. Hubert, A.A. Smolnikov, V. B. Brudanin, G. Broudin-Bay, I. Vanyushin, S. Jullian, Fedor Šimkovic, Igor Nemchenok, J. Mott, Guillaume Lutter, C. M. Jackson, F. Nova, A Zukauskas, T. Lamhamdi, V. G. Egorov, R. Saakyan, X. Sarazin, L. Vála, A. S. Barabash, A. Basharina-Freshville, A. J. Caffrey, J. Grozier, V. V. Timkin, A. Nachab, Juergen Thomas, S. I. Konovalov, P. Novella, J. Martín-Albo, A. A. Klimenko, L. Simard, C. H. Nguyen, F. Perrot, C.S. Sutton, V. I. Umatov, D. Lalanne, R. Arnold, R. L. Flack, S. Blondel, J. S. Ricol, M. Bongrand, Vl. I. Tretyak, S. Söldner-Rembold, I. Stekl, Vit Vorobel, E. Chauveau, H. Ohsumi, and Dominique Durand
- Subjects
Physics ,Isotope ,010308 nuclear & particles physics ,Stable isotope ratio ,General Physics and Astronomy ,Half-life ,chemistry.chemical_element ,01 natural sciences ,Beta decay ,Nuclear physics ,chemistry ,Double beta decay ,0103 physical sciences ,Neutrino Ettore Majorana Observatory ,010306 general physics ,Tellurium ,Radioactive decay - Abstract
This Letter reports results from the NEMO-3 experiment based on an exposure of 1275 days with 661g of 130Te in the form of enriched and natural tellurium foils. With this data set the double beta decay rate of 130Te is found to be non-zero with a significance of 7.7 standard deviations and the half-life is measured to be T1/2 = (7.0 +/- 0.9(stat) +/- 1.1(syst)) x 10^{20} yr. This represents the most precise measurement of this half-life yet published and the first real-time observation of this decay.
- Published
- 2011
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