L.6 Renormalization scale

scale variation of the extended kernel. With ${Q^{\mu \nu }}_{\mathrm{L},\mu }$ defined by (eq:QLext) with ${\mathfrak{R}}_{\mathrm{L}}$ replaced by ${\mathfrak{R}}_{\mathrm{L},\mu }$,

a local collision distribution of the same type as (eq:L-deltaQ), with contact coefficients $a_{\mu }({q^{\circ }}_{\lambda },\gamma )$ in place of the free $C_{\lambda \gamma }$. The four interpretive categories of Section sec:l5D apply verbatim to these coefficients (they are a particular coherent change, fixed by $\varpi$ and $\mu$ rather than free).