Model fore−e+Annihilation at High Energy

We have studied $e^{+}{e}^{-}$ annihilation into hadrons in a neutral pseudoscalar theory at high c.m. energy $\surd s$. The results are the continuation of $\mathrm{ep}$ inelastic scattering studied earlier. In particular, all distribution properties can be obtained from our calculation of $\mathrm{ep}$ inelastic scattering through the substitution $q^2\to s$, where $q$ is the lepton momentum transfer. Scale invariance may hold if none of the final hadron momenta is measured. However, it certainly fails if any of the hadron momenta is fixed. As in $\mathrm{ep}$ inelastic scattering, the hadrons in the annihilation process fall naturally into two jets. The longitudinal impact parameter space is realized in each of the jets when hadron momenta are measured.