EEWW and WWF: Two W event generators

Abstract Two generators are presented to study W pair production in e + e − collisions. EEWW generates onshell W 's including all one-loop and leading log photonic two-loop contributions; it has full polarization and anomalous couplings. WWF is part of the effort towards a full offshell W generator; it describes the hard bremsstrahlung process e + e − → 4 fermions + γ through off-shell W pairs.