Abstract：In the structure function approach,we calculate the threshold behaviours for e++e－→τ++τ－,which including QED radiative corrections from initial correction,vacuum polarization effect,Coulomb effect and final state correction.This theoretical prediction for threshold behaviours of τ-pair production is useful for BES new measurement of lepton τ mass.
W. Marciano and A. Sirlin, Phys. Rev. Lett., 61(1988), 1815.Particle Data Group, Phys. Lett., 238B(|