Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/107735
Title: | Search for Higgs boson decays to beyond-the-Standard-Model light bosons in four-lepton events with the ATLAS detector at √s=13 TeV | Authors: | Santos, S. P. Amor dos Fiolhais, M. C. N. Galhardo, B. Veloso, F. Wolters, H. ATLAS Collaboration |
Keywords: | Beyond Standard Model; Hadron-Hadron scattering (experiments) | Issue Date: | 2018 | Publisher: | Springer Nature | Serial title, monograph or event: | Journal of High Energy Physics | Volume: | 2018 | Issue: | 6 | Abstract: | A search is conducted for a beyond-the-Standard-Model boson using events where a Higgs boson with mass 125 GeV decays to four leptons (ℓ = e or μ). This decay is presumed to occur via an intermediate state which contains one or two on-shell, promptly decaying bosons: H → ZX/XX → 4ℓ, where X is a new vector boson Zd or pseudoscalar a with mass between 1 and 60 GeV. The search uses pp collision data collected with the ATLAS detector at the LHC with an integrated luminosity of 36.1 fb−1 at a centre-of-mass energy s=13 TeV. No significant excess of events above Standard Model background predictions is observed; therefore, upper limits at 95% confidence level are set on modelindependent fiducial cross-sections, and on the Higgs boson decay branching ratios to vector and pseudoscalar bosons in two benchmark models. | URI: | https://hdl.handle.net/10316/107735 | DOI: | 10.1007/JHEP06(2018)166 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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Search-for-Higgs-boson-decays-to-beyondtheStandardModel-light-bosons-in-fourlepton-events-with-the-ATLAS-detector-at-s13-TeVJournal-of-High-Energy-Physics.pdf | 1.11 MB | Adobe PDF | View/Open |
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