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A new investigation of half-lives for the decay modes of $^{50}$V
- Source :
- Phys. Rev. C 99, 045501 (2019)
- Publication Year :
- 2018
-
Abstract
- A new search for the decay modes of the 4-fold forbidden non-unique decay of $^{50}$V has been performed at the Gran Sasso Underground Laboratory (LNGS). In total an exposure of 197 kg $\times$ d has been accumulated. The half-life for the electron capture into the first excited state of $^{50}$Ti has been measured with the highest precision to date as $2.67_{-0.18}^{+0.16} \times 10^{17}$ yr (68% C.I.) in which systematics uncertainties dominate. The search for the $\beta$-decay into the first excited state of $^{50}$Cr resulted in a lower limit of ${1.9} \times 10^{19}$ yr (90% C.I.), which is an improvement of almost one order of magnitude compared to existing results. The sensitivity of the new measurement is now in the region of theoretical predictions.
- Subjects :
- Nuclear Experiment
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. C 99, 045501 (2019)
- Publication Type :
- Report
- Accession number :
- edsarx.1812.04745
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevC.99.045501