On the Alpha Activity of Natural Tungsten Isotopes
نویسنده
چکیده
The indication for the α decay of W with a half-life T α 1/2=1.1 +0.8 −0.4(stat)±0.3(syst)×10 18 yr has been observed for the first time with the help of the super-low background CdWO4 crystal scintillators. In conservative approach the lower limit on half-life of W has been established as T α 1/2( W) ≥ 0.7×10 yr at 90% C.L. Besides, new T α 1/2 bounds were set for α decay of W, W, W and W at the level of 10 yr. PACS number(s): 23.60.+e; 29.40.Mc
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تاریخ انتشار 2008