Creating true muonium via charmonium radiative decay

Abstract

True muonium, the bound state of a muon and an antimuon ($\hat{I}{¼}^{+}\hat{I}{¼}^{-}$), has long been theoretically predicted but remains experimentally elusive. We investigate the production of true para-muonium in the radiative decay of $J/\ddot{I}ˆ$ meson,and analyze the prospects for detecting true muonium in current and future high-energy $e^{+}{e}^{-}$ experiments, particularly focusing on the BESIII experiment and the proposed Super Tau-Charm Facility. Although the events are rare at the super tau-charm facility, the detection of true para-muonium via $J/\ddot{I}ˆ$ radiative decays could become feasible at its future updates.

7 pages, 1 figure