Fig. 5: Recorded spectra of the 1S–2S transition from runs A and B. | Nature

Fig. 5: Recorded spectra of the 1S–2S transition from runs A and B.

From: Laser cooling of antihydrogen atoms

Fig. 5

The fits use lineshapes informed by simulation (Methods). Both of the spectra are normalized to their fitted height and have a frequency-independent background subtracted to illustrate the difference in line shape. The subtracted background is 3.6 (18.3) annihilation events per bin in run A (B) and the fitted signal amplitude is 84.6 (135) events. The error bars represent 1 s.d. counting statistics. a.u., arbitrary units.

Back to article page