Average and recommended half-life values for two-neutrino double beta decay: upgrade-2019

Abstract

All existing positive results on two neutrino double beta decay and two neutrino double electron capture in different nuclei were analyzed. Using the procedure recommended by the Particle Data Group, weighted average values for half-lives of ${}^{48}$Ca, ${}^{76}$Ge, ${}^{82}$Se, ${}^{96}$Zr, ${}^{100}$Mo, ${}^{100}$Mo - ${}^{100}$Ru ($0_1^{+}$), ${}^{116}$Cd, ${}^{130}$Te, ${}^{136}$Xe, ${}^{150}$Nd, ${}^{150}$Nd - ${}^{150}$Sm ($0_1^{+}$), ${}^{238}$U, ${}^{78}$Kr and ${}^{124}$Xe were obtained. Existing geochemical data were analyzed and recommended values for half-lives of ${}^{128}$Te and ${}^{130}$Ba are proposed. I recommend the use of these results as the most currently reliable values for half-lives.

5 pages, talk presented at MEDEX'19 (Prague, Czech Republic, 27-31 May)

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• Average and recommended half-life values for two neutrino double beta decay: upgrade'05
• Measurement of the $2\nu \beta \beta$ Decay Half-Life and Search for the $0\nu \beta \beta$ Decay of ${}^{116}$Cd with the NEMO-3 Detector
• Comparative study of the double $K$-shell-vacancy production in single- and double-electron capture decay
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Cited by in corpus (11)

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• Coupled-cluster calculations of neutrinoless double-beta decay in ${}^{48}$Ca
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• Searching for New Physics in Two-Neutrino Double Beta Decay
• Low background measurement in CANDLES-III for studying the neutrino-less double beta decay of ${}^{48}$Ca
• Cosmogenic activation in double beta decay experiments
• The energy calibration system for CANDLES using (n, γ) reaction
• Comprehensive Review of 2$\beta$ Decay Half-Lives
• Searching for Neutrinoless Double-Beta Decay of ${}^{136}$Xe with PandaX-4T
• Probing Dark Sector Particles Coupling to Neutrinos with Double Beta Decay
• Active neutrino oscillations and double beta decay characteristics with sterile neutrinos contributions