Modelling of rare top quark processes at √s = 13 TeV in ATLAS

Publikation: Spezielle Publikationen/Beiträge › Hervorgehobener Artikel/Titelblatt › Beigetragen › Begutachtung

Beitragende

  • The ATLAS collaboration - , University of Bucharest, iThemba Laboratory for Accelerator Based Sciences, University of Pretoria, Universität von Südafrika, University of Zululand, Cadi Ayyad University, New York University Abu Dhabi, University of Granada, CERN, University of California at Berkeley, University of Georgia (Tbilisi), Yeditepe University, Mohammed VI Polytechnic University (Autor:in)
  • Frank Siegert - , Professur für Teilchenphysik (Autor:in)
  • University of Valencia
  • University of Glasgow
  • University of Arizona
  • Bergische Univertsität Wuppertal
  • Università degli Studi di Udine
  • Southern Methodist University
  • Università degli Studi di Trieste

Abstract

This note documents modelling studies for some rare processes involving top quarks carried out by the ATLAS Collaboration. Different Monte Carlo event generators for five processes: ttW, ttZ/γ∗, ttH, tttt and tWZ have been compared. Next-to-leading-order multileg merged configurations and rare electroweak production mechanisms have been studied. The impact of the choice of the renormalization and factorization scales on the predicted cross-sections and selected observables is presented and discussed. These studies aim to improve ATLAS Monte Carlo simulations and reduce the systematic theoretical modelling uncertainties, which are already a limiting factor in several experimental LHC results.

Details

OriginalspracheEnglisch
FachzeitschriftATLAS public notes
PublikationsstatusVeröffentlicht - 16 Sept. 2020
Peer-Review-StatusJa
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