Search for diboson resonances in hadronic final states in 139 fb<SUP>-1</SUP> of pp collisions at √s=13 TeV with the ATLAS detector



Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abhayasinghe, DK, Abidi, SH, AbouZeid, OS, Abraham, NL, Abramowicz, H, Abreu, H
et al (show 2914 more authors) (2019) Search for diboson resonances in hadronic final states in 139 fb<SUP>-1</SUP> of pp collisions at √s=13 TeV with the ATLAS detector. JOURNAL OF HIGH ENERGY PHYSICS, 09 (9). 091-.

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Abstract

Narrow resonances decaying into $WW$, $WZ$ or $ZZ$ boson pairs are searched for in 139 fb$^{-1}$ of proton-proton collision data at a centre-of-mass energy of $\sqrt{s}=13$ TeV recorded with the ATLAS detector at the Large Hadron Collider from 2015 to 2018. The diboson system is reconstructed using pairs of high transverse momentum, large-radius jets. These jets are built from a combination of calorimeter- and tracker-inputs compatible with the hadronic decay of a boosted $W$ or $Z$ boson, using jet mass and substructure properties. The search is performed for diboson resonances with masses greater than 1.3 TeV. No significant deviations from the background expectations are observed. Exclusion limits at the 95% confidence level are set on the production cross-section times branching ratio into dibosons for resonances in a range of theories beyond the Standard Model, with the highest excluded mass of a new gauge boson at 3.8 TeV in the context of mass-degenerate resonances that couple predominantly to gauge bosons.

Item Type: Article
Additional Information: 41 pages in total, author list starting page 25, 9 figures, 3 tables, published in JHEP. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HDBS-2018-31. This version includes modifications described in the erratum that can be found at https://doi.org/10.1007/JHEP06(2020)042
Uncontrolled Keywords: Hadron-Hadron scattering (experiments)
Depositing User: Symplectic Admin
Date Deposited: 18 Nov 2019 11:29
Last Modified: 10 Oct 2023 09:14
DOI: 10.1007/JHEP09(2019)091
Open Access URL: https://doi.org/10.1007/JHEP09(2019)091
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3062257