On the possibility to search for decay of initially unstable ( radioactive) nucleiV. I. Tretyak, F. A. Danevich, S. S. Nagorny and Yu. G. Zdesenko
Institute for Nuclear Research, MSP 03680 - Kiev, Ukraine
received 14 May 2004; accepted in final form 29 October 2004
published online 8 December 2004
An alternative method to search for decay is discussed. Contrary to the "conventional" approach (where only stable candidates are used), it is intended to study unstable nuclei, whose energy release, , is much higher in most of the cases than that of "conventional" candidates. As an example, the first experimental half-life limits on decay of radioactive nuclides from and families (contaminants of the and scintillators) were set by reanalyzing the data of low-background measurements in the Solotvina Underground Laboratory (1734 with and 13316 with ).
23.40.-s - decay; double decay; electron and muon capture.
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