Abstract
We calculate the effect of pair production on the luminosity process of low-angle Bhabha scattering at the SLAC Linear Collider (SLC) and/or CERN collider LEP. We work in the leading-logarithm approximation to orders and for the nonsinglet and the singlet contributions, respectively. In particular we calculate the size of the singlet contribution to be below 0.007% for the energy cuts , as was estimated by Jadach and co-workers. In this way, we remove the contribution of such pairs from the theoretical uncertainty in the SLC/LEP luminosity calculation of Jadach and co-workers via the Monte Carlo Bhlumi 2.01 at the precision level of 0.01%. Results are illustrated for typical SLC/LEP acceptance cuts.
DOI:https://doi.org/10.1103/PhysRevD.47.3733
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