CERN Accelerating science

Article
Report number arXiv:1312.1956 ; CERN-PH-EP-2013-172 ; CERN-PH-EP-2013-172
Title Search for a Multi-Higgs Boson Cascade in W+Wbˉb events with the ATLAS detector in pp collisions at √s = 8 TeV
Related titleSearch for a multi-Higgs-boson cascade in WWbb events with the ATLAS detector in pp collisions at sqrt(s) = 8 TeV
Author(s) ATLAS Collaboration  顯示全部 2935 名作者
Publication 2014-02-19
Imprint 06 Dec 2013
Number of pages 23
Note Comment: 11 pages plus author list (25 pages total), 6 figures, 4 tables, submitted to PRD, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2013-04/
11 pages plus author list (25 pages total), 6 figures, 4 tables, submitted to PRD, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2013-04/
In: Phys. Rev. D 89 (2014) 032002
DOI 10.1103/PhysRevD.89.032002
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords Higgs physics ; exotics ; experimental results
Abstract A search is presented for new particles in an extension to the Standard Model that includes a heavy Higgs boson (H0), an intermediate charged Higgs boson (H±), and a light Higgs boson (h0). The analysis searches for events involving the production of a single heavy neutral Higgs boson which decays to the charged Higgs boson and a W boson, where the charged Higgs boson subsequently decays into a W boson and the lightest neutral Higgs boson decaying to a bottom-antibottom-quark pair. Such a cascade results in a W-boson pair and a bottom–antibottom-quark pair in the final state. Events with exactly one lepton, missing transverse momentum, and at least four jets are selected from a data sample corresponding to an integrated luminosity of 20.3 fb1, collected by the ATLAS detector in proton-proton collisions at √s = 8 TeV at the LHC. The data are found to be consistent with Standard Model predictions, and 95% confidence level upper limits are set on the product of cross-section and branching ratio. These limits range from 0.065 pb to 43 pb as a function of H0 and H± masses, with mh0 fixed at 125 GeV.
Copyright/License publication: © 2014-2024 CERN (License: CC-BY-3.0)
preprint: © 2013-2024 CERN (License: CC-BY-3.0)



Corresponding record in: Inspire
Email contact: ATLAS-publication-committee-chair@cern.ch


 記錄創建於2013-12-06,最後更新在2024-03-14


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