Table 1.

Experimental parameters and number of detected events

Series	Sample polarization	Transition probed	Number of runs	Average pulse energy (pJ)	Number of frequencies	Number of pulses per frequency	Number of trapped atoms	Microwave counts	Laser counts	Counts upon release
1	Single	1Scd→2Pc±	4	600	12	24,000	2,004	–	1,197	807
2	Single	1Scd→2Pf±	4	550	12	24,000	2,012	–	1,075	937
3	Double	1Sd→2Pc−	2	440	12	12,000	1,044	527	229	288
4	Double	1Sd→2Pf−	2	720	12	12,000	971	463	341	167

The experimental parameters, together with the number of antihydrogen events detected during the microwave irradiation, the laser irradiation and the release of the remaining atoms, are tabulated for each series. The machine-learning analysis identifies annihilation events with an estimated efficiency of 0.849 for the microwave irradiation, 0.807 for the laser irradiation and 0.851 for the release of the remaining atoms. The number of counts is corrected for the detection efficiencies. The number of trapped atoms is derived from the sum of the other counts.