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

B. F. L. Ward; S. Jadach; Z. Was; S. A. Yost

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arXiv · 1811.09509

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

B. F. L. Ward·S. Jadach·Z. Was·S. A. Yost

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Abstract

${\cal KK}$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 ${\cal O}(\alpha^2L)$, together with exact ${\cal O}(\alpha)$ 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 ${\cal KK}$MC-hh to those of HORACE, which includes exact ${\cal O}(\alpha)$ corrections with resummed final-state photon radiation.

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B. F. L. Ward, S. Jadach, Z. Was, S. A. Yost. 2018-11-23. A Precision Event Generator for EW Corrections in Hadron Scattering: ${\cal KK}$MC-hh. https://arxiv.org/abs/1811.09509

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