Theory of the n=2 levels in muonic helium-3 ions

摘要

The present knowledge of Lamb shift, fine-, and hyperfine structure of the 2S and 2P states in muonic helium-3 ions is reviewed in anticipation of the results of a first measurement of several 2S 2P transition frequencies in the muonic helium-3 ion, mu He-3(+). This ion is the bound state of a single negative muon mu(-) and a bare helium-3 nucleus (helion), He-3(++).