Novel Particle Beam Could Challenge Einstein’s Theory of Gravity
Researchers at ETH Zurich and the Paul Scherrer Institute have produced a cold, high‑intensity muonium beam using superfluid helium, enabling precise tests of the universality of free fall for second‑generation particles. The experiment aims to measure how muonium, a neutral atom composed of a muon and an electron, falls under Earth’s gravity, potentially revealing deviations from Einstein’s equivalence principle. The team plans to use an interferometer to detect minute gravitational effects and also intends to apply the beam to laser spectroscopy for improved measurements of muon properties.
Researchers at ETH Zurich and the Paul Scherrer Institute have produced a cold, high‑intensity muonium beam using superfluid helium, enabling precise tests of the universality of free fall for second‑generation particles. The experiment aims to measure how muonium, a neutral atom composed of a muon and an electron, falls under Earth’s gravity, potentially revealing deviations from Einstein’s equivalence principle. The team plans to use an interferometer to detect minute gravitational effects and also intends to apply the beam to laser spectroscopy for improved measurements of muon properties.
The experiment, carried out at ETH Zurich, demonstrates advanced scientific capabilities that can support Swiss AI research initiatives by providing high‑precision data and experimental techniques relevant to AI‑driven analysis.
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