Radiative corrections ine⁺e⁻collisions with the BabaYaga event generator

Abstract

Abstract. The Monte Carlo event generator BabaYaga has been developed in the last decade for high precision simulation of QED processes (e + e − → e + e − , e + e − → μ + μ − and e + e − → γγ) at flavour factories, mainly for luminometry purposes, with an estimated theoretical accuracy at the 0.1% level or better. The relevant QED radiative corrections are included by means of a QED Parton Shower matched with exact next-to-leading order corrections to reach the required accuracy. The main theoretical framework is overviewed and the status of the generator is summarized.

One-loop electroweak radiative corrections to lepton pair production in polarized electron-positron collisions

“…For the first time this was done in [10]. Modern Monte-Carlo tools for the process (1) are MC generators MCGPJ [11] and BabaYaga@NLO [7,[12][13][14]. The recent version of the MC BabaYaga@NLO contains one-loop calculations and also provides an enhancement of leading logarithmic (LL) QED contributions due to multiphoton emission and the impact of photonic and fermion-loop corrections at next-to-next-to-leading order [7].…”