The QED initial state corrections to the forward-backward asymmetry of e+e- → γ*/Z0* to higher orders

The QED initial state corrections are calculated to the forward-backward asymmetry for e(+)e(-) -> gamma*/Z(0)* in the leading logarithmic approximation to O(alpha L-6(6)), with L = ln(s/m(e)(2)), extending the known corrections up to O(alpha L-2(2)) in analytic form. We use the method of massive on-shell operator matrix elements and present the radiators both in Mellin-N and momentum fraction z-space. Numerical results are presented for various energies around the Z-peak by also including energy cuts. These corrections are of relevance for the precision measurements at the FCC_ee. (C) 2021 Published by Elsevier B.V.