Speaker
Description
The LEMING experiment aims to measure the gravitational interaction of muonium (Mu = μ⁺ + e⁻) and to perform next-generation laser spectroscopy. A high-intensity, subthermal vacuum muonium beam is produced via muon conversion in a thin layer of superfluid helium. This novel source enables sub-nanometer-sensitive measurements of muonium displacement due to gravitational acceleration and, potentially, for sub-kHz laser spectroscopy. Here we present recent developments of the experimental setup, including the generation of horizontal muonium beam in a microfluidic source integrated with the first grating, the prototype interferometer and high-resolution cryogenic Si detectors. Details of their construction, characterization, and performance validation are discussed.