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A plausible description of the behavior of a μ⁺ meson in aqueous solutions is given which suggests a reduction of almost 20 parts per million in the measured μ⁺ magnetic moment. When combined with muonium hyperfine measurements it supports a value of the fine structure constant which almost halves the disagreement between theory and experiment for the hyperfine structure in hydrogen.
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M. Ruderman (1966) studied this question.
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