Mini-review on Monte Carlo programs for Bhabha scattering

TL;DR

This paper reviews Monte Carlo simulation programs for large-angle Bhabha scattering at electron-positron colliders operating between 1 and 10 GeV, highlighting their current accuracy and relevance for luminosity measurements.

Contribution

It provides a comprehensive overview of the current status and accuracy of Monte Carlo generators used for Bhabha scattering at moderate energies.

Findings

Current programs achieve 0.1% theoretical accuracy.

Accuracy comparable to small-angle Bhabha scattering at LEP.

Supports luminosity monitoring at flavour factories.

Abstract

We review the status of Monte Carlo generators presently used for simulations of the large-angle Bhabha process at electron-positron colliders of moderately high energy (flavour factories), operating at centre-of-mass energies between about 1 GeV and 10 GeV. It is shown how the theoretical accuracy reached by present Bhabha programs for physics at flavour factories is at the level of 0.1% and, therefore, comparable with that reached about a decade ago for luminosity monitoring through small-angle Bhabha scattering at LEP.