TH Thursday Seminar

Four-fermion production near the W pair production threshold with unstable particle effective field theory

by Prof. Martin Beneke (Aachen)

→ Europe/Zurich
TH AMPHITHEATRE (CERN)

TH AMPHITHEATRE

CERN

Description
Pair production of W bosons near threshold is important for a precise measurement of the W boson mass. Accurate theoretical predictions for e^+ e^- -> four fermions require a systematic treatment of finite-width effects. In this talk I discuss unstable particle effective field theory and perform a dedicated study of the accuracy of the W mass on the basis of a NLO calculation.