γ\gamma — Gamma

Lowercase gamma (γ) is the Lorentz factor of special relativity — the factor by which time dilates and lengths contract at high speed. In nuclear physics it also denotes high-energy photons (gamma rays).

Used in

  • Lorentz factor γ = 1/√(1−v²/c²)
  • Time dilation Δt = γΔt₀
  • Gamma-ray photons