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arXiv · 1310.6090

NLO corrections in the initial-state parton shower Monte Carlo

S. Jadach·A. Kusina·W. Placzek·M. Skrzypek
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Abstract

The decade-old technique of combining NLO-corrected hard process with LO-level parton shower Monte Carlo is now mature and used in practice of the QCD calculations in the LHC data analysis. The next step, its extension to an NNLO-corrected hard process combined with the NLO-level parton shower Monte Carlo, will require development of the latter component. It does not exist yet in a complete form. In this note we describe recent progress in developing the NLO parton shower for the initial-state hadron beams. The technique of adding NLO corrections in the fully exclusive form (defined in recent years) is now simplified and tested numerically, albeit for a limited set of NLO diagrams in the evolution kernels.

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S. Jadach, A. Kusina, W. Placzek, M. Skrzypek. 2013-10-23. NLO corrections in the initial-state parton shower Monte Carlo. https://doi.org/10.5506/aphyspolb.44.2179

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