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arXiv · 2002.12477

ISR and IFI in Precision AFB Studies with KKMC-hh

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

KKMC-hh is a hadronic event generator for Z boson production and decays, which includes exponentiated multi-photon radiation and first-order electroweak corrections. We have used KKMC-hh to investigate the role of initial sate radiation (ISR) and initial-final interference (IFI) in precision electroweak analyses at the LHC. We compare the effect of this radiation on angular distributions and forward-backward asymmetry, which are particularly important for the measurement of the weak mixing angle. We discuss the relation of the ISR implementation in KKMC-hh to ISR from parton distribution functions with QED corrections.

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S. Yost, S. Jadach, B. F. L. Ward, Z. Was. 2020-02-27. ISR and IFI in Precision AFB Studies with KKMC-hh. https://arxiv.org/abs/2002.12477

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