KKMC-hh: a precision event generator for electroweak radiative corrections in hadron scattering

KKMC-hh is a precision event-generator for Z production and decay in hadronic collisions, which applies amplitude-level exponentiation to both initial and final state photon radiation, including perturbative residuals through order \(\alpha^2 L\), together with electroweak matrix element corrections. We present results showing the effect of multi-photon radiation for cuts motivated by a recent ATLAS W-mass analysis. We also show preliminary untuned comparisons of the electroweak corrections of KKMC-hh to those of HORACE, which includes order \(\alpha\) corrections with exponentiated final-state photon radiation.

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