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

Abstract

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.

9 pages, 4 figures; v2: minor changes

References in corpus (2)

• Search for ${\beta }^{+}$EC and ECEC processes in ${}^{74}$Se
• Double beta decay experiments: past and present achievements

Cited by in corpus (1)

• Double-beta decay Q values of 130Te, 128Te, and 120Te