Evidence item

The primary study directly reports 4-ppm precision and a two-order-of-magnitude improvement. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 21926

Source: Four ppm measurement of the antihydrogen ground-state hyperfine splitting · locator {} · excerpt hash sha256:2f79a5005d34254ed442184586e117d4cf1cf9ff3cb06f34c7d54c95b6fd0a1d

Here we report a 4 ppm measurement of the antihydrogen ground-state hyperfine splitting energy a 1S, advancing the state-of-the-art precision by two orders of magnitude.