Anomalous coupling, top-mass and parton-shower effects in ${W^+W^-}$ production

التفاصيل البيبلوغرافية
العنوان: Anomalous coupling, top-mass and parton-shower effects in ${W^+W^-}$ production
المؤلفون: Bellm, Johannes, Gieseke, Stefan, Greiner, Nicolas, Heinrich, Gudrun, Platzer, Simon, Reuschle, Christian, von Soden-Fraunhofen, Johann Felix
سنة النشر: 2016
المجموعة: High Energy Physics - Phenomenology
مصطلحات موضوعية: High Energy Physics - Phenomenology
الوصف: We calculate the process $pp\to W^+W^-\to e^+ \nu_e \mu^-\bar{\nu}_\mu$ at NLO QCD, including also effective field theory (EFT) operators mediating the $ggW^+W^-$ interaction, which first occur at dimension eight. We further combine the NLO and EFT matrix elements produced by GoSam with the HERWIG7/MATCHBOX framework, which offers the possibility to study the impact of a parton shower. We assess the effects of the anomalous couplings by comparing them to top-mass effects as well as uncertainties related to variations of the renormalisation, factorisation and hard shower scales.
Comment: 24 pages, 16 figures
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/1602.05141
رقم الأكسشن: edsarx.1602.05141
قاعدة البيانات: arXiv