Theoretical improvements for luminosity monitoring at low energies

Abstract

A comparison of theoretical results on NNLO leptonic and hadronic corrections to Bhabha scattering with the Monte Carlo generator BabaYaga@NLO used at meson factories is given. Complete NLO virtual corrections to the $e^{+}{e}^{-}\to {\mu }^{+}{\mu }^{-}\gamma$ process are discussed.

Comments: 8 pages, 4 figs, presented by J.Gluza at Radcor 2011