Bhabha Scattering at NNLO

Abstract

We review the status of the calculation of next-to-next-to-leading order corrections to large angle Bhabha scattering in pure QED. After discussing the electron-loop and photonic corrections, we focus on the recently calculated two-loop virtual corrections involving a heavy-flavor fermion loop. We conclude by assessing the numerical impact of these corrections on the Bhabha scattering cross section at colliders operating at a center of mass energy of about 1-GeV.

Forward instrumentation for ILC detectors

“…The differential cross section of Bhabha scattering, dσ B dθ , can be calculated precisely from theory [8]. In leading order it reads,…”

Virtual Hadronic Corrections to Massive Bhabha Scattering

“…In addition, heavy-fermion corrections, beyond the m 2 f << s, t limit, have been made available in [17,18,19]; see also [20].…”

“…Hadronic contributions have been recently calculated in [17]. In addition, heavy-fermion corrections, beyond the m 2 f << s, t limit, have been made available in [17,18,19]; see also [20].…”