Search for the Higgs boson produced in association with a <i>W</i> boson and decaying to four <i>b</i>-quarks via two spin-zero particles in <i>pp</i> collisions at 13 TeV with the ATLAS detector



Aaboudd, M, Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Abeloos, B, Aben, R, AbouZeid, OS, Abraham, NL, Abramowicz, H
et al (show 2845 more authors) (2016) Search for the Higgs boson produced in association with a <i>W</i> boson and decaying to four <i>b</i>-quarks via two spin-zero particles in <i>pp</i> collisions at 13 TeV with the ATLAS detector. EUROPEAN PHYSICAL JOURNAL C, 76 (11). 605-.

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Abstract

This paper presents a dedicated search for exotic decays of the Higgs boson to a pair of new spin-zero particles, [Formula: see text], where the particle <i>a</i> decays to <i>b</i>-quarks and has a mass in the range of 20-60 GeV. The search is performed in events where the Higgs boson is produced in association with a [Formula: see text] boson, giving rise to a signature of a lepton (electron or muon), missing transverse momentum, and multiple jets from <i>b</i>-quark decays. The analysis is based on the full dataset of <i>pp</i> collisions at [Formula: see text] recorded in 2015 by the ATLAS detector at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 3.2 [Formula: see text]. No significant excess of events above the Standard Model prediction is observed, and a [Formula: see text] confidence-level upper limit is derived for the product of the production cross section for [Formula: see text] times the branching ratio for the decay [Formula: see text]. The upper limit ranges from 6.2 pb for an <i>a</i>-boson mass [Formula: see text] to 1.5 pb for [Formula: see text].

Item Type: Article
Additional Information: 26 pages plus author list (43 pages total), 7 figures, 3 tables, final version published in EPJC, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2016-01/
Uncontrolled Keywords: ATLAS Collaboration, ATLAS Collaboration, ATLAS Collaboration
Depositing User: Symplectic Admin
Date Deposited: 14 Mar 2017 14:41
Last Modified: 12 Oct 2023 09:03
DOI: 10.1140/epjc/s10052-016-4418-9
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3006389