Search for heavy resonances decaying into a W or Z boson and a Higgs boson in final states with leptons and b-jets in 36 fb(-1) of √s=13 TeV pp collisions with the ATLAS detector



Aaboud, M, Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abidi, SH, AbouZeid, OS, Abraham, NL, Abramowicz, H, Abreu, H
et al (show 2898 more authors) (2018) Search for heavy resonances decaying into a W or Z boson and a Higgs boson in final states with leptons and b-jets in 36 fb(-1) of √s=13 TeV pp collisions with the ATLAS detector. JOURNAL OF HIGH ENERGY PHYSICS, 174 (3). 174-.

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Abstract

A search is conducted for new resonances decaying into a $W$ or $Z$ boson and a 125 GeV Higgs boson in the $\nu\bar{\nu}b\bar{b}$, $\ell^{\pm}{\nu}b\bar{b}$, and $\ell^+\ell^-b\bar{b}$ final states, where $\ell^{\pm}= e^{\pm}$ or $\mu^{\pm}$, in $pp$ collisions at $\sqrt{s} = 13$ TeV. The data used correspond to a total integrated luminosity of 36.1 fb$^{-1}$ collected with the ATLAS detector at the Large Hadron Collider during the 2015 and 2016 data-taking periods. The search is conducted by examining the reconstructed invariant or transverse mass distributions of $Wh$ and $Zh$ candidates for evidence of a localised excess in the mass range of 220 GeV up to 5 TeV. No significant excess is observed and the results are interpreted in terms of constraints on the production cross-section times branching fraction of heavy $W^\prime$ and $Z^\prime$ resonances in heavy-vector-triplet models and the CP-odd scalar boson $A$ in two-Higgs-doublet models. Upper limits are placed at the 95% confidence level and range between $9.0\times 10^{-4}$ pb and $8.1\times 10^{-1}$ pb depending on the model and mass of the resonance.

Item Type: Article
Additional Information: 52 pages in total, author list starting page 36, 8 figures, 5 tables, published version including Erratum corrections available at https://link.springer.com/article/10.1007%2FJHEP11%282018%29051. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2016-10
Uncontrolled Keywords: Beyond Standard Model, Hadron-Hadron scattering (experiments)
Depositing User: Symplectic Admin
Date Deposited: 30 Jan 2020 14:36
Last Modified: 19 Jan 2023 00:05
DOI: 10.1007/JHEP03(2018)174
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3072696

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