Interjet Rapidity Gaps in Perturbative QCD

We discuss a formalism in which high-$p_T$ dijet rapidity gaps are identified by energy flow in the interjet region. When the gap energy, $Q_{\mathrm{g}\mathrm{a}\mathrm{p}}$, is sufficiently large, the cross section may be computed from standard factorization theorems. For $p_T\gg Q_T\gg {\mathrm{\Lambda }}_{\mathrm{Q}\mathrm{C}\mathrm{D}}$, this is a two-scale perturbative problem, in which we may resum logarithms of $Q_{\rm gap}/p_T$\mathrm{.}Thecrosssectioncomputedasafunctionof$Q_{\rm gap}$ reproduces many of the features of the Tevatron dijet gap data. The factorized cross section gives meaning to the color content of the hard scattering.