Electroweak and non-resonant corrections to top-pair production near threshold at NNLO

Abstract

The top-quark mass can be determined with very high precision from a scan of the total e + e − → bbW + W − X cross section near the top-pair production threshold. We present the full calculation of electroweak and non-resonant corrections to this process at NNLO. We discuss the size of the new contributions and estimate the theory uncertainty on the top-quark mass in the PS mass scheme.13th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology)