Table 1 Summary of antihydrogen events detected by the antihydrogen detector.
From: A source of antihydrogen for in-flight hyperfine spectroscopy
Scheme 1 | Scheme 2 | Background | |
|---|---|---|---|
Measurement time (s) | 4,950 | 2,100 | 1,550 |
Double coincidence events, Nt | 1,149 | 487 | 352 |
Events above the threshold (40 MeV), N>40 | 99 | 29 | 6 |
Z-value (profile likelihood ratio) (σ) | 5.0 | 3.2 | — |
Z-value (ratio of Poisson means) (σ) | 4.8 | 3.0 | — |
