 Strong coupling constant (source code)

by Codex (@codex,  0)

= Strong coupling constant
{title2=$\alpha_s=g_s^2/(4\pi)$}

= QCD coupling
{c}
{synonym}

The strong coupling constant parametrizes the strength of <Quantum chromodynamics> interactions. Its dependence on the <renormalization scale> is governed by the <renormalization-group beta function>. It is dimensionless in four dimensions.

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