A Precision Event Generator for EW Corrections in Hadron Scattering: $\mathcal{KK}$MC-hh

Abstract

$\mathcal{KK}$MC-hh is a precision event-generator for Z production and decay in hadronic collisions, which applies amplitude-level resummation to both initial and final state photon radiation, including perturbative residuals exact through $\mathcal{O}({\alpha }^{2}L)$, together with exact $\mathcal{O}(\alpha )$ EW matrix element corrections. We present some comparisons to other programs and 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 $\mathcal{KK}$MC-hh to those of HORACE, which includes exact $\mathcal{O}(\alpha )$ corrections with resummed final-state photon radiation.

Comments: 6 pages, 3 figures, presented by B.F.L. Ward at ICHEP2018, Seoul, S. Korea, 7/5/2018