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Article overview
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Precision half-life measurement of the 4-fold forbidden electron capture of V-50 | | H. Dombrowski
; S. Neumaier
; K. Zuber
; | | Date: |
30 Mar 2011 | | Abstract: | A sensitive search of the 4-fold forbidden non-unique beta decay of V-50 has
been performed. A total exposure of 185.8 kg x d has been accumulated. A
reliable half-life value with the highest precision so far of $(2.29 pm 0.25)
cdot 10^{17}$ years of the electron capture decay of V-50 into the first
excited state of Ti-50 could be obtained. A photon emission line following the
4-fold forbidden beta decay into the first excited state of Cr-50 could not be
observed, resulting in a lower limit on the half-life of the beta decay branch
of $1.7 cdot 10^{18}$ years. This is barely in agreement with a claimed
observation of this decay branch. | | Source: | arXiv, 1103.5872 | | Services: | Forum | Review | PDF | Favorites | |
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