Evidence item

The primary article reports extraction from superfluid helium and velocity and yield characteristics consistent with a superthermal beam. MEASUREMENT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 21814

Source: Generation of a high-intensity, superthermal muonium beam for gravity and laser spectroscopy experiments · locator {} · excerpt hash sha256:096bdabb65e127f3b3edd9d674cf085db4a0341e540aa35f1338288931462269

Here we report the generation of a high-brightness muonium beam, which we extract from a thin layer of superfluid helium. The mean longitudinal velocity and narrow spread of the velocity distribution indicate a superthermal beam, and yields are similar to the highest-intensity diffuse sources.