Search for heavy ZZ resonances in the l(+) l(-) l(+) l(-) and l(+) l(-) nu(nu)over-bar final states using proton-proton collisions at root s=13 TeV with the ATLAS detector


Type
Article
Change log
Authors
Aaboud, M 
Aad, G 
Abbott, B 
Abdinov, O 
Abeloos, B 
Abstract

A search for heavy resonances decaying into a pair of Z bosons leading to ++ and +νν¯ final states, where stands for either an electron or a muon, is presented. The search uses proton proton collision data at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 36.1 fb−1 collected with the ATLAS detector during 2015 and 2016 at the Large Hadron Collider. Different mass ranges for the hypothetical resonances are considered, depending on the final state and model. The different ranges span between 200 GeV and 2000 GeV. The results are interpreted as upper limits on the production cross section of a spin 0 or spin 2 resonance. The upper limits for the spin 0 resonance are translated to exclusion contours in the context of Type I and Type II two-Higgs-doublet models, while those for the spin 2 resonance are used to constrain the Randall Sundrum model with an extra dimension giving rise to spin 2 graviton excitations.

Description
Keywords
ATLAS Collaboration
Journal Title
European Physical Journal C
Conference Name
Journal ISSN
1434-6044
1434-6052
Volume Title
78
Publisher
Springer
Sponsorship
Science and Technology Facilities Council (ST/I005846/1)
Science and Technology Facilities Council (ST/J00488X/1)
Science and Technology Facilities Council (ST/K003666/1)
Science and Technology Facilities Council (ST/L001144/1)
Science and Technology Facilities Council (ST/L005662/1)
Science and Technology Facilities Council (ST/M006417/1)
Science and Technology Facilities Council (ST/H001093/1)
Science and Technology Facilities Council (ST/H001093/2)
Science and Technology Facilities Council (PP/E000347/1)
Science and Technology Facilities Council (ST/K001361/1)
Science and Technology Facilities Council (ST/N000234/1)
Science and Technology Facilities Council (ST/R504671/1)