Asymmetries in Processes of Electron–Positron Annihilation

Abstract

Processes of electron–positron annihilation into a pair of fermions were considered. Forward–backward and left–right asymmetries were studied, taking into account polarization of initial and final particles. Complete 1-loop electroweak radiative corrections were included. A wide energy range including the Z boson peak and higher energies relevant for future e + e − colliders was covered. Sensitivity of observable asymmetries to the electroweak mixing angle and fermion weak coupling was discussed.

Keywords

• high energy physics
• electron–positron annihilation
• forward–backward asymmetry
• left–right asymmetry