Half-life measurements of the two-neutrino double-$\beta $ decay INSPIRE search

The measured half-life values for the transitions (Z,A)$~\rightarrow~$(Z+2,A) $+$ 2${{\mathit e}^{-}}$ $+$ 2${{\overline{\mathit \nu}}_{{e}}}$ to the 0${}^{+}$ ground state of the final nucleus are listed. We also list the transitions to an excited state of the final nucleus (0${}^{+}_{i}$, etc.). We report only the measuremetnts with the smallest (or comparable) uncertainty for each transition.

${\mathrm {\mathit t_{1/2}}}$ ($ 10^{21} $ yr) ISOTOPE TRANSITION METHOD DOCUMENT ID
• • • We do not use the following data for averages, fits, limits, etc. • • •
$ \text{> 0.87} $ ${}^{134}\mathrm {Xe}$ $\text{EXO-200}$ 1
ALBERT
2017C
$ 0.82 \pm0.02 \pm0.06 $ ${}^{130}\mathrm {Te}$ $\text{CUORE-0}$ 2
ALDUINO
2017
$ 0.00690 \pm0.00015 \pm0.00037 $ ${}^{100}\mathrm {Mo}$ $\text{CUPID}$ 3
ARMENGAUD
2017
$ 0.0274 \pm0.0004 \pm0.0018 $ ${}^{116}\mathrm {Cd}$ $\text{NEMO-3}$ 4
ARNOLD
2017
$ 0.064 {}^{+.007}_{-.006} {}^{+.012}_{-.009} $ ${}^{48}\mathrm {Ca}$ $\text{NEMO-3}$ 5
ARNOLD
2016
$ 0.00934 \pm0.00022 {}^{+.00062}_{-.00060} $ ${}^{150}\mathrm {Nd}$ $\text{NEMO-3}$ 6
ARNOLD
2016A
$ 1.926 \pm0.094 $ ${}^{76}\mathrm {Ge}$ $\text{GERDA}$ 7
AGOSTINI
2015A
$ 0.00693 \pm0.00004 $ ${}^{100}\mathrm {Mo}$ $\text{NEMO-3}$ 8
ARNOLD
2015
$ 2.165 \pm0.016 \pm0.059 $ ${}^{136}\mathrm {Xe}$ $\text{EXO-200}$ 9
ALBERT
2014
$ 9.2 {}^{+5.5}_{-2.6} \pm1.3 $ ${}^{78}\mathrm {Kr}$ $\text{BAKSAN}$ 10
GAVRILYAK
2013
$ 2.38 \pm0.02 \pm0.14 $ ${}^{136}\mathrm {Xe}$ $\text{KamLAND-Zen}$ 11
GANDO
2012A
$ 0.7 \pm0.09 \pm0.11 $ ${}^{130}\mathrm {Te}$ $\text{NEMO-3}$ 12
ARNOLD
2011
$ 0.0235 \pm0.0014 \pm0.0016 $ ${}^{96}\mathrm {Zr}$ $\text{NEMO-3}$ 13
ARGYRIADES
2010
$ 0.69 {}^{+0.10}_{-0.08} \pm0.07 $ ${}^{100}\mathrm {Mo}$ $0$ ${}^{}\mathrm {Ge} \text{ coinc.}$ 14
BELLI
2010
$ 0.57 {}^{+0.13}_{-0.09} \pm0.08 $ ${}^{100}\mathrm {Mo}$ $0$ NEMO-3 15
ARNOLD
2007
$ 0.096 \pm0.003 \pm0.010 $ ${}^{82}\mathrm {Se}$ NEMO-3 16
ARNOLD
2005A
$ 0.029 {}^{+0.004}_{-0.003} $ ${}^{116}\mathrm {Cd}$ ${}^{116}\mathrm {Cd}\text{ WO_}{4} \text{ scint.}$ 17
DANEVICH
2003
1  ALBERT 2017C uses the EXO-200 detector that contains $19.098$ $\pm0.014\%$ admixture of ${}^{134}\mathrm {Xe}$ to search for the 2${{\mathit \nu}}$ ${{\mathit \beta}}{{\mathit \beta}}$ decay mode. The exposure is 29.6 kg$\cdot{}$year. The median sensitivity is $1.2 \times 10^{21}$ years.
2  ALDUINO 2017 use the CUORE-0 detector containing 10.8 kg of ${}^{130}\mathrm {Te}$ in 52 crystals of TeO$_{2}$. The exposure was 9.3 kg yr of ${}^{130}\mathrm {Te}$. This is a more accurate rate determination than in ARNOLD 2011 and BARABASH 2011A.
3  ARMENGAUD 2017 use $185.9$ $\pm0.1$ g crystal of Li$_{2}{}^{100}\mathrm {Mo}{}^{}\mathrm {O}_{4}$ to determine the ${}^{100}\mathrm {Mo}$ 2${{\mathit \nu}}$ ${{\mathit \beta}}{{\mathit \beta}}$ half-life. The exposure was of $1303$ $\pm26$ hours only, using novel technique.
4  ARNOLD 2017 use the NEMO-3 tracking calorimeter, containing 410 grams of enriched ${}^{116}\mathrm {Cd}$ exposed for 5.26 years, to determine the half-life value.
5  ARNOLD 2016 use the NEMO-3 detector and a source of 6.99 g of ${}^{48}\mathrm {Ca}$. The half-life is based on 36.7 g year exposure. It is consistent, although somewhat longer, than the previous determinations of the half-life. Supersedes BARABASH 2011A.
6  ARNOLD 2016A use the NEMO-3 tracking calorimeter, containing 36.6 g of ${}^{150}\mathrm {Nd}$ exposed for 1918.5 days, to determine the half-life. Supersedes ARGYRIADES 2009 .
7  AGOSTINI 2015A use 17.9 kg yr exposure of the GERDA calorimeter to derive an improved measurement of the 2${{\mathit \nu}}{{\mathit \beta}}{{\mathit \beta}}$ decay half life of ${}^{76}\mathrm {Ge}$.
8  ARNOLD 2015 use the NEMO-3 tracking calorimeter with 34.3 kg yr exposure to determine the 2${{\mathit \nu}}{{\mathit \beta}}{{\mathit \beta}}$-half life of ${}^{100}\mathrm {Mo}$. Supersedes ARNOLD 2005A and ARNOLD 2004 .
9  ALBERT 2014 use the EXO-200 tracking detector for a re-measurement of the 2${{\mathit \nu}}{{\mathit \beta}}{{\mathit \beta}}$-half life of ${}^{136}\mathrm {Xe}$. A nuclear matrix element of $0.0218$ $\pm0.0003$ MeV${}^{-1}$ is derived from this data. Supersedes ACKERMAN 2011 .
10  GAVRILYAK 2013 use a proportional counter filled with ${}^{}\mathrm {Kr}$ gas to search for the 2${{\mathit \nu}}$2K decay of ${}^{78}\mathrm {Kr}$. Data with the enriched and depleted ${}^{}\mathrm {Kr}$ were used to determine signal and background. A 2.5${{\mathit \sigma}}$ excess of events obtained with the enriched sample is interpreted as an indication for the presence of this decay.
11  GANDO 2012A use a modification of the existing KamLAND detector. The ${{\mathit \beta}}{{\mathit \beta}}$ decay source/detector is 13 tons of enriched ${}^{136}\mathrm {Xe}$-loaded scintillator contained in an inner balloon. The 2${{\mathit \nu}}{{\mathit \beta}}{{\mathit \beta}}$ decay rate is derived from the fit to the spectrum between 0.5 and 4.8 MeV. This result is in agreement with ACKERMAN 2011 .
12  ARNOLD 2011 use enriched ${}^{130}\mathrm {Te}$ in the NEMO-3 detector to measure the 2 ${{\mathit \nu}}$ ${{\mathit \beta}{\mathit \beta}}$ decay rate. This result is in agreement with, but more accurate than ARNABOLDI 2003 .
13  ARGYRIADES 2010 use $9.4$ $\pm0.2$ g of ${}^{96}\mathrm {Zr}$ in NEMO-3 detector and identify its 2${{\mathit \nu}}{{\mathit \beta}}{{\mathit \beta}}$ decay. The result is in agreement and supersedes ARNOLD 1999 .
14  BELLI 2010 use enriched ${}^{100}\mathrm {Mo}$ with 4 HP ${}^{}\mathrm {Ge}$ detectors to record the 590.8 and 539.5 keV ${{\mathit \gamma}}$ rays from the decay of the 0${}^{+}_{1}$ state in ${}^{100}\mathrm {Ru}$ both in singles and coincidences. This result confirms the measurement of KIDD 2009 and ARNOLD 2007 and supersedes them.
15  First exclusive measurement of 2${{\mathit \nu}}$-decay to the first excited 0${}^{+}_{1}$-state of daughter nucleus. ARNOLD 2007 use the NEMO-3 tracking calorimeter to detect all particles emitted in decay. Result agrees with the inclusive ( 0 ${{\mathit \nu}}{+}$ 2 ${{\mathit \nu}}$ ) measurement of DEBRAECKELEER 2001 .
16  ARNOLD 2005A use the NEMO-3 tracking detector to determine the 2 ${{\mathit \nu}}{{\mathit \beta}}{{\mathit \beta}}$ half-life of ${}^{82}\mathrm {Se}$ with high statistics and low background (389 days of data taking). Supersedes ARNOLD 2004 .
17  Calorimetric measurement of 2${{\mathit \nu}}{{\mathit \beta}}{{\mathit \beta}}$ ground state decay of ${}^{116}\mathrm {Cd}$ using enriched CdWO$_{4}$ scintillators. Agrees with EJIRI 1995 and ARNOLD 1996 . Supersedes DANEVICH 2000 .
  References:
ALBERT 2017C
PR D96 092001 Searches for Double Beta Decay of ${}^{134}\mathrm {Xe}$ with EXO-200
ALDUINO 2017
EPJ C77 13 Measurement of the Two-Neutrino Double-Beta Decay Half-Life of ${}^{130}\mathrm {Te}$ with the CUORE-0 Experiment
ARMENGAUD 2017
EPJ C77 785 Development of ${}^{100}\mathrm {Mo}$-containing Scintillating Bolometers for a High-sensitivity Neutrinoless Double-beta Decay Search
ARNOLD 2017
PR D95 012007 Measurement of the 2${{\mathit \nu}}{{\mathit \beta}}{{\mathit \beta}}$ Decay Half-Life and Search for the 0${{\mathit \nu}}\beta \beta $ Decay of ${}^{116}\mathrm {Cd}$ with the NEMO-3 Detector
ARNOLD 2016
PR D93 112008 Measurement of the Double-Beta Decay Half-Life and Search for the Neutrinoless Double-Beta Decay of ${}^{48}\mathrm {Ca}$ with the NEMO-3 Detector
ARNOLD 2016A
PR D94 072003 Measurement of the 2${{\mathit \nu}}{{\mathit \beta}}{{\mathit \beta}}$ Decay Half-Life of ${}^{150}\mathrm {Nd}$ and a Search for 0${{\mathit \nu}}{{\mathit \beta}}{{\mathit \beta}}$ Decay Processes with the Full Exposure from the NEMO-3 Detector
AGOSTINI 2015A
EPJ C75 416 Results on ${{\mathit \beta}}{{\mathit \beta}}$ Decay with Emission of Two Neutrinos or Majorons in ${}^{76}\mathrm {Ge}$ from GERDA Phase I
ARNOLD 2015
PR D92 072011 Results of the Search for Neutrinoless Double-${{\mathit \beta}}$ Decay in ${}^{100}\mathrm {Mo}$ with the NEMO-3 Experiment
ALBERT 2014
PR C89 015502 An Improved Measurement of the 2${{\mathit \nu}}{{\mathit \beta}}{{\mathit \beta}}$ Half-life of ${}^{136}\mathrm {Xe}$ with EXO-200
GAVRILYAK 2013
PR C87 035501 Indications of 2${{\mathit \nu}}2{{\mathit K}}$ Capture in ${}^{78}\mathrm {Kr}$
GANDO 2012A
PR C85 045504 Measurement of the Double-${{\mathit \beta}}$ Decay Half-Life of ${}^{136}\mathrm {Xe}$ with the KamLAND-Zen Experiment
ARNOLD 2011
PRL 107 062504 Measurement of the ${{\mathit \beta}}{{\mathit \beta}}$ Decay Half-Life of ${}^{130}\mathrm {Te}$ with the NEMO-3 Detector
ARGYRIADES 2010
NP A847 168 Measurement of the Two Neutrino Double $\beta $ Decay Half-Life of ${}^{96}\mathrm {Zr}$ with the NEMO-3 Detector
BELLI 2010
NP A846 143 New Observation of 2${{\mathit \beta}}2{{\mathit \nu}}$ Decay of ${}^{100}\mathrm {Mo}$ to the 0${}^{+}_{1}$ Level of ${}^{100}\mathrm {Ru}$ in the ARMONIA Experiment
ARNOLD 2007
NP A781 209 Measurement of Double beta Decay of ${}^{100}\mathrm {Mo}$ to Excited States in the NEMO-3 Experiment
ARNOLD 2005A
PRL 95 182302 First Results of the Search for Neutrinoless Double-Beta Decay with the NEMO 3 Detector
DANEVICH 2003
PR C68 035501 Search for 2$\beta $ Decay of Cadmium and Tungsten Isotopes: Final Results of the Solotvina Experiment
ACKERMAN 2011
PRL 107 212501 Observation of Two-Neutrino Double-Beta Decay in ${}^{136}\mathrm {Xe}$ with the EXO-200 Detector
ARNABOLDI 2003
PL B557 167 A Calorimetric Search on Double beta Decay of ${}^{130}\mathrm {Te}$
BARABASH 2011A
PAN 74 312 Investigation of Double-beta Decay with the NEMO-3 Detector
ARNOLD 2004
JETPL 80 377 Study of 2${{\mathit \beta}}$ Decay of ${}^{100}\mathrm {Mo}$ and ${}^{82}\mathrm {Se}$ using the NEMO3 Detector