First measurement of the partial widths of $^{209}$Bi decay to the ground and to the first excited states

Details First measurement of the partial widths of $^{209}$Bi decay to the ground and to the first excited states First measurement of the partial widths of $^{209}$Bi decay to the ground and to the first excited states

2011-10-14

arxiv.org/abs/1110.3138v1

Physics

Nuclear Physics

Nuclear Experiment

5 pages, 4 figures

Scientific paper

$^{209}$Bi alpha decay to the ground and to the first excited state have been
contemporary observed for the first time with a large BGO scintillating
bolometer. The half-life of $^{209}$Bi is determined to be
$\tau_{1/2}$=(2.01$\pm$0.08)$\cdot10^{19}$ years while the branching ratio for
the ground-state to ground-state transition is (98.8$\pm$0.3)%.

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