Monte Carlo programs for small-angle Bhabha scattering

News, 01 July 2024

Chinese Physics C published an article “Monte Carlo programs for small-angle Bhabha scattering” by a team of authors from the Laboratory of Theoretical Physics and the Laboratory of Nuclear Problems at JINR and Dubna State University.

Luminosity monitoring at e+e colliders was investigated using SANC Monte Carlo event generator ReneSANCe and integrator MCSANC for simulation of Bhabha scattering at low angles. Results are presented for centre-of-mass energies of the Z boson resonance and at 240 GeV for the conditions of typical luminosity detectors. It is shown that bremsstrahlung events with extremely low electron scattering angles are relevant to match the precision tags of future electron-positron colliders.

The s and t channels of Bhabha processes at lowest order