Review Article
Neutrinoless Double Beta Decay: 2015 Review
Table 7
In this table, the main features and performances of some past, present, and future
experiments are listed.
| | Experiment | Isotope | Technique | Total mass [kg] | Exposure [kg yr] | FWHM @ [keV] | Background [counts/keV/kg/yr] | [1025 yr] |
| | Past | | | | | | | | | Cuoricino [72] | 130Te | Bolometers | 40.7 (TeO2) | 19.75 | 5.8 ± 2.1 | 0.153 ± 0.006 | 0.24 | | CUORE-0 [73] | 130Te | Bolometers | 39 (TeO2) | 9.8 | 5.1 ± 0.3 | 0.058 ± 0.006 | 0.29 | | Heidelberg-Moscow [74] | 76Ge | Ge diodes | 11 (Ge) | 35.5 | 4.23 ± 0.14 | 0.06 ± 0.01 | 1.9 | | IGEX [75, 76] | 76Ge | Ge diodes | 8.1 (Ge) | 8.9 | ~4 | ≲0.06 | 1.57 | | GERDA-I [77, 78] | 76Ge | Ge diodes | 17.7 (Ge) | 21.64 | 3.2 ± 0.2 | ~0.01 | 2.1 | | NEMO-3 [79] | 100Mo | Tracker + calorimeter | 6.9 (100Mo) | 34.7 | | 0.013 | 0.11 |
| | Present | | | | | | | | | EXO-200 [80] | 136Xe | LXe TPC | 175 (Xe) | 100 | 89 ± 3 | (1.7 ± 0.2) ⋅ 10−3 | 1.1 | | KamLAND-Zen [81, 82] | 136Xe | Loaded liquid scintillator | 348 (Xe) | 89.5 | 244 ± 11 | ~0.01 | 1.9 |
| | Future | | | | | | | | | CUORE [83] | 130Te | Bolometers | 741 (TeO2) | 1030 | 5 | 0.01 | 9.5 | | GERDA-II [84] | 76Ge | Ge diodes | 37.8 (Ge) | 100 | 3 | 0.001 | 15 | | LUCIFER [85] | 82Se | Bolometers | 17 (Zn82Se) | 18 | 10 | 0.001 | 1.8 | | MAJORANA D. [86] | 76Ge | Ge diodes | 44.8 (Ge) | 100 | 4 | 0.003 | 12 | | NEXT [87, 88] | 136Xe | Xe TPC | 100 (Xe) | 300 | 12.3–17.2 | 5 ⋅ 10−4 | 5 |
| | AMoRE [89] | 100Mo | Bolometers | 200 (CaMoO4) | 295 | 9 | 1 ⋅ 10−4 | 5 | | nEXO [90] | 136Xe | LXe TPC | 4780 (Xe) | 12150 | 58 | | 66 | | PandaX-III [91] | 136Xe | Xe TPC | 1000 (Xe) | 3000 | 12–76 | 0.001 | 11 | | SNO+ [92] | 130Te | Loaded liquid scintillator | 2340 (Te) | 3980 | 270 | 2 ⋅ 10−4 | 9 | | SuperNEMO [93, 94] | 82Se | Tracker + calorimeter | 100 (82Se) | 500 | 120 | 0.01 | 10 |
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Our assumption (corresponding sensitivity from Figure of [86]).
We assume 3 tons of fiducial volume.
Our assumption by rescaling NEXT.
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