Precision measurement of the Lamb shift in Muonium

B. Ohayon, G. Janka, I. Cortinovis +10

We report a new measurement of the $n=2$ Lamb shift in Muonium using microwave spectroscopy. Our result of $1047.2(2.3{)}_{\text{stat}}(1.1{)}_{\text{syst}}$ MHz comprises an order of…