تقرير
Improving NLO QCD event generators with high-energy EW corrections
| العنوان: | Improving NLO QCD event generators with high-energy EW corrections |
|---|---|
| المؤلفون: | Pagani, Davide, Vitos, Timea, Zaro, Marco |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Experiment High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, High Energy Physics - Experiment |
| الوصف: | In this work we present a new approach for the combination of electroweak (EW) corrections at high energies, the so-called EW Sudakov logarithms (EWSL), and next-to-leading-order QCD predictions matched to parton-shower simulations (NLO+PS). Our approach is based on a reweighting procedure of NLO+PS events. In particular, both events with and without an extra hard emission from matrix elements are consistently reweighted via the inclusion of the corresponding EWSL contribution. We describe the technical details and the implementation in the MadGraph5_aMC@NLO framework. Via a completely automated procedure, events at this new level of accuracy can be obtained for a vast class of hadroproduction processes. As a byproduct we provide results for phenomenologically relevant physical distributions from top-quark pair and Higgs boson associated production ($t\overline{t}H$) and from the associated production of three $Z$ gauge bosons ($ZZZ$). Comment: 45 pages, 10 figures. This version matches the published one |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2309.00452 |
| رقم الأكسشن: | edsarx.2309.00452 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |