Microwave Spectroscopy of the Muonium $2S_{1/2}-2P_{3/2}$ Fine Structure Interval

Philipp Blumer, Gianluca Janka, Svenja Geissmann +8

We report a microwave spectroscopy measurement of the muonium $2S_{1/2}-2P_{3/2}$ fine structure transition, yielding a transition frequency of $9871.0\pm 7.0\mathrm{MHz}$, in ag…