Table 1 Summary of experimental data

From: Observation of the 1S–2P Lyman-α transition in antihydrogen

Sequence

Average pulse energy (pJ)

Number of pulses at each frequency

Total detected events during laser irradiation

Total detected events from the release of remaining atoms

1

620

6,000

230

170

2

620

6,000

254

164

3

650

6,000

261

179

4

530

6,000

221

174

  1. The total number of antihydrogen atoms detected during the laser irradiation and during the release of remaining atoms is tabulated for each sequence. The MVA identifies annihilations with an efficiency of 0.807 for the laser irradiation and 0.851 for the release of the remaining atoms.