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V. D. Ashitkov A. S. Barabash S. G. Belogurov G. Carugno S. I. Konovalov I. O. Pilugin G. Puglierin R. R. Saakyan V. N. Stekhanov V. I. Umatov I. A. Vanushin 《Nuclear Physics B - Proceedings Supplements》1999,70(1-3)
First two runs with 138.7 g of 100Mo were done 9202 h and 238 h). Limits on half-lives for 0ν- and 0νχ0-decays of 100Mo were obtained, > 2.3 · 1021 y and 0.8 · 1020 y, respectively at 90% CL. Also the limit on the content of radioactive 42Ar in the natural Ar was obtained, < 5 · 10−21 g/g. Perspectives for the future are discussed. 相似文献
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V. D. Ashitkov A. S. Barabash S. G. Belogurov G. Carugno S. I. Konovalov F. Massera G. Puglierin R. R. Saakyan V. N. Stekhanov V. I. Umatov 《JETP Letters》2001,74(11):529-531
Two-neutrino double beta decay of 100Mo with half-life T 1/2=[7.2±0.9(stat)± 1.8(syst)]×1018 yr was detected using a liquid argon ionization chamber. With a C.L. of 68% (90%), the bounds on neutrinoless decay and decay with majoron emission were found to be 8.4(4.9)×1021 and 4.1(3.2)×1020 yr, respectively. An analysis of all available results provides the average “world” value T 1/2=(8.0±0.7)×1018 yr for the two-neutrino decay of 100Mo, and the corresponding nuclear matrix element is M GT=0.118±0.005. 相似文献
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Baldo-Ceolin M. Benetti P. Bitter T. Bobisut F. Calligarich E. Dolfini R. Dubbers D. El-Muzeini P. Genoni M. Gibin D. Gigli Berzolari A. Gobrecht K. Guglielmi A. Last J. Laveder M. Lippert W. Mattioli F. Mauri F. Mezzetto M. Montanari C. Piazzoli A. Puglierin G. Rappoldi A. Raselli G. L. Scannicchio D. Sconza A. Vascon M. Visentin L. 《Zeitschrift fur Physik C Particles and Fields》1994,63(3):409-416
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