The has a measured mean lifetime

PHYSICS · Subjective · Fermi University Physics · Particle Physics & Quantum Fields · Particles, interactions and experiment · Particles, interactions and experiment

Particle Physics, Ch Decay rates, cross sections and phase space

Problem

The

\pi^+

has a measured mean lifetime

\tau = 2.6033\times10^{-8}\,\mathrm{s}

. Calculate its total decay width

\Gamma

\mathrm{eV}

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