Plots for Particle Physics Lectures Gideon Bella
Running α QED
Running α S
B d Life Time Distribution
Some particle lifetimes and decay modes ParticleMass (GeV)Lifetime (s)Width (GeV)Decay Modes μˉ ·10¯⁶10¯¹⁹eνν τˉ ·10ˉ¹⁵10¯¹²eνν, μνν, πν, ρν, A₁ν, … Wˉ80.410¯²⁵2.08eν, μν, τν, dū, … Zˉ ¯²⁵2.50e⁺eˉ, μ⁺μˉ, τ⁺τˉ, uū, … t ¯²⁵2.0Wb πˉ ·10¯⁸10ˉ¹⁷μν π° ·10ˉ¹⁷10¯⁸γγ Kˉ ·10¯⁸10ˉ¹⁷μν, πˉπ°, πˉπ°π°, πˉπ⁺πˉ ρ° ¯²⁴0.149π⁺πˉ n ˉ²⁷peν Λ ·10¯¹⁰10ˉ¹⁵pπˉ, nπ° Δ⁺⁺ ¯²⁴0.117pπ⁺