Answers are grounded in this paper and cite their sources.
A new upper limit for the probability of spontaneous muonium to antimuonium conversion was established at PMM̄≤8.3×10^-11 ( $90%$ C.L.) in 0.1 T magnetic field, which implies consequences for speculative extensions to the standard model. Coupling parameters in R-parity-violating supersymmetry and the mass of a flavor diagonal bileptonic gauge boson can be significantly restricted. A Z₈ model with radiative mass generation through heavy lepton seed and the minimal version of 331 models are disfavored.
No takes yet. Share an insight, caveat, or question.
Willmann et al. (1999) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: