Dark matter annihilation in the FCC vacuum

Two K=6 octahedral voids of the FCC lattice (each a dark matter particle χ) share one octahedron edge. On merger they form a single tetrahedral residual — the dark proton χ′ — in a tet void hinged on that edge, plus a photon.

FCC lattice atom (K=12)

oct void A — χ

oct void B — χ

shared edge (interface)

cuboctahedral coordination shell

tet void — χ′ residual

photon (1.59 GeV)

Stage: two χ defects at rest show lattice spin speed

χ + χ → γ + χ′ | E_γ = 1.591 GeV m_χ′ = 0.938 GeV (0.27σ from Kang)