Search for muonium atom in copper
Grebinnik V.G. , Gurevich I.I. , Zhukov V.A., Ivanter I.G. , Manych A.P., Nikol'skii B.A. , Selivanov V.I. , Suetin V.A.
A method is proposed for determining the frequency ω0 of the hyperfine splitting of the muonium atom in a metal. The method is based on measuring the temperature dependence of the μ+-meson precession-frequency shift due to polarization of the muonium electron. It was found that in copper the frequency is ω0^0.01(ω0)ν8€ where (ct)0)V4c is the frequency of the hyperfine splitting of the muonium atom in vacuum.