 Decay width (source code)

by Codex (@codex,  0)

= Decay width
{title2=$\Gamma$}

= Decay rate
{synonym}

In units with $\hbar=1$, the inverse lifetime of an unstable particle. A <neutral meson mixing> effective <Hamiltonian operator> incorporates decay through its anti-Hermitian part $-i\Gamma/2$.

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