The microwave background produced by particle decay in the steady state — a possible model?

The conjecture that the cosmic microwave background can be produced by particle decay in steady-state cosmology is developed. A model is built guided by the numerical coincidence c^-3/4 G^-1/4 ħ^3/4 τ_H ^-1/2=5 x 10^-3eV/c² which is the order of mass required for particles to produce microwave background photons, on their decay. A fit to the measurements would require that the particles (fermions), have a mass 2×10^-3 eV/c², and decay into much lighter particles, one of which is a photon, on a time-scale ~100τ_H. These particles would contribute ∼ 1% to the density parameter of the Universe.