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arxiv: nucl-ex/0703020 · v2 · submitted 2007-03-13 · ⚛️ nucl-ex

New limits on the β⁺EC and ECEC processes in ¹²⁰Te

classification ⚛️ nucl-ex
keywords betaececlimitsstatetimesgroundprocessestransition
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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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