Evidence item

The article’s results section repeats the combined frequency estimate and uncertainty components. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 21960

Source: Four ppm measurement of the antihydrogen ground-state hyperfine splitting · locator {} · excerpt hash sha256:5d4143d120c566fd0563f533ad7368774ba494b87bf658e039f7d732c514ebe4

We combine the statistically independent results of the measurements for the two datasets, taking into account correlations between systematic uncertainties, to obtain a1S/h = 1,420,404.8 ± 1.1 (stat.) ± 5.6 (sys.) kHz, consistent with CPT invariance.