Abstract
The scattering of two off-shell photons is an infrared-safe process in QCD. For photon virtualities $Q$ in the range of a few $\mathrm{GeV}$, accessible at the CERN ${e}^{+}{e}^{\ensuremath{-}}$ collider LEP II, power-behaved contributions in $({\ensuremath{\Lambda}}_{\mathrm{QCD}}/Q{)}^{n}$ to the total cross section may become non-negligible. Based on a dispersion relation for the running coupling, we discuss these contributions and calculate the coefficients of the leading power correction for transversely polarized and longitudinally polarized virtual photons.
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