Review Article
Challenges in Double Beta Decay
| | SND | Se ( = 2997 keV) under construction |
| | FWHM | 120 keV | | MASS | 6.3 kg of Se (7 kg of enriched Se) | | BKG | | | Rejection | Particle charge identification + track | | Goal | 5 × 10−4 counts/(keV·kg·yr) | | 3.3 × 1025 yr in 5 years (detection efficiency 30%) |
| | SuperNEMO | Se ( = 2997 keV) |
| | FWHM | 120 keV | | MASS | 100 kg of Se (110 kg of enriched Se) | | BKG | | | Rejection | Particle charge identification + track | | Goal | 5 × 10−4 counts/(keV·kg·yr) | | 1.3 × 1026 yr in 5 years (detection efficiency 30%) |
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