Electron (e⁻): -emCP center, 0 cages (bare), ~0.511 MeV, stable
Muon (μ⁻): -emCP center, 1 cage (tetrahedral), ~105.7 MeV, unstable
Tau (τ⁻): -emCP center, 3 cages (tetra+icosa+dodeca), ~1777 MeV, very unstable
Mass Ratio: Muon is ~207× heavier than electron due to tetrahedral cage
Decay: μ⁻ → e⁻ + ν̄ₑ + νμ (tetrahedral cage fissions). Lifetime ~2.2×10⁻⁶ s