A Search for Muonium to Anti-muonium Conversion

A new measurement is described which sets an upper limit on the coupling constant for conversion of muonium (μ+e−) to antimuonium (μ−e+) of 42GF, where GF is the Fermi coupling constant. Muonium atoms were formed in layers of fine silica powder separated by vacuum drift regions. The presence of μ− was searched for using the signature of a Ca 2P−1S muonic x ray from calcium oxide layers adjacent to the drift regions. Results were also obtained with an Ar target.

MUONIUM: OSCILLATION
ATOM: MUONIC ATOM
COUPLING CONSTANT: WEAK INTERACTION
WEAK INTERACTION: COUPLING CONSTANT
COUPLING CONSTANT: UPPER LIMIT
UPPER LIMIT: COUPLING CONSTANT
MODEL: FOUR-FERMION INTERACTION
FOUR-FERMION INTERACTION: MODEL
MUON NUMBER: VIOLATION
ELECTRON POSITRON: ANNIHILATION

References(19)

Figures(0)

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