New limits on the $β^{+}$EC and ECEC processes in $^{120}$Te

Details New limits on the $β^{+}$EC and ECEC processes in $^{120}$Te New limits on the $β^{+}$EC and ECEC processes in $^{120}$Te

2007-03-13

arxiv.org/abs/nucl-ex/0703020v2

J.Phys.G34:1721-1728,2007

Physics

Nuclear Physics

Nuclear Experiment

9 pages, 4 figures; v2: minor changes

Scientific paper

10.1088/0954-3899/34/7/012

New limits on the double beta processes for $^{120}$Te have been obtained using a 400 cm$^3$ HPGe detector and a source consisting of natural Te0$_2$ powder. At a confidence level of 90% the limits are $0.19\times 10^{18}$ y for the $\beta^+$EC$(0\nu + 2\nu)$ transition to the ground state, $0.75\times 10^{18}$ y for the ECEC$(0\nu + 2\nu)$ transition to the first 2$^+$ excited state of $^{120}$Sn (1171.26 keV) and $(0.19-0.6)\times 10^{18}$ y for different ECEC($0\nu$) captures to the ground state of $^{120}$Sn.

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