Search for Higgs boson decays to beyond-the-Standard-Model light bosons in four-lepton events with the ATLAS detector at √s=13 TeV

The ATLAS collaboration

doi:10.1007/JHEP06(2018)166

Search for Higgs boson decays to beyond-the-Standard-Model light bosons in four-lepton events with the ATLAS detector at √s=13 TeV

The ATLAS collaboration

School of Physics and Astronomy

National University of Science and Technology POLITEHNICA Bucharest
Dep Física and CEFITEC of Faculdade de Ciências e Tecnologia
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National Center for Energy, Nuclear Science and Technology
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Research output: Contribution to journal › Article › peer-review

74 Scopus citations

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 Z_d 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.[Figure not available: see fulltext.].

Original language	English
Article number	166
Journal	Journal of High Energy Physics
Volume	2018
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2018)166
State	Published - 1 Jun 2018

Funding

Funders	Funder number
???publication-publication-funding-organisation-not-added???	ST/J005533/1, ST/K001310/1, ST/L006162/1, ST/N000447/1, ST/J004804/1, ST/M000753/1, ST/N000307/1, ST/K001329/1, ST/N000420/1
AvH Foundation
Benoziyo Center, Israel
CEA-DRF/IRFU
Canada Council
Cantons of Bern and Geneva
DNSRC	IN2P3-CNRS
DST/NRF
EU-ESF
In-vestissements d’Avenir Labex
MES of Russia
MESTD
MNE/IFA
MSMT
MSSR
Marie Sklo dowska-Curie Actions
Minerva, Israel
RGC
Région Auvergne
VSC CR
National Science Foundation	1624739
U.S. Department of Energy
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Ontario Innovation Trust
Canarie
Biomedical Research Foundation
Arizona-Nevada Academy of Science
CERN
Compute Canada
National Research Council
College of Arts and Sciences, University of Nebraska-Lincoln
Glycemic Index Foundation
Natural Sciences and Engineering Research Council of Canada
Science and Technology Facilities Council	ST/L003449/1
Leverhulme Trust
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Canada Foundation for Innovation
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National Natural Science Foundation of China
Fundação para a Ciência e a Tecnologia
Bundesministerium für Bildung und Forschung
Austrian Science Fund
Generalitat de Catalunya
Comisión Nacional de Investigación Científica y Tecnológica
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Ministerstwo Nauki i Szkolnictwa Wyższego
Israeli Centers for Research Excellence
Centre National pour la Recherche Scientifique et Technique
Horizon 2020
British Columbia Knowledge Development Fund
European Regional Development Fund
Marianne and Marcus Wallenberg Foundation
Fondation Partager le Savoir
National Research Center "Kurchatov Institute"
Ministry of Health of the Russian Federation

Keywords

Beyond Standard Model
Hadron-Hadron scattering (experiments)

Access to Document

10.1007/JHEP06(2018)166

Cite this

@article{c897793b40ca447e90c1d2f1751e8e0e,

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",

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.[Figure not available: see fulltext.].",

keywords = "Beyond Standard Model, Hadron-Hadron scattering (experiments)",

author = "\{The ATLAS collaboration\} and M. Aaboud and G. Aad and B. Abbott and O. Abdinov and B. Abeloos and Abidi, \{S. H.\} and AbouZeid, \{O. S.\} and Abraham, \{N. L.\} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and S. Adachi and L. Adamczyk and J. Adelman and M. Adersberger and T. Adye and Affolder, \{A. A.\} and Y. Afik and T. Agatonovic-Jovin and C. Agheorghiesei and Aguilar-Saavedra, \{J. A.\} and Ahlen, \{S. P.\} and F. Ahmadov and G. Aielli and S. Akatsuka and H. Akerstedt and {\AA}kesson, \{T. P.A.\} and E. Akilli and Akimov, \{A. V.\} and Alberghi, \{G. L.\} and J. Albert and P. Albicocco and \{Alconada Verzini\}, \{M. J.\} and Alderweireldt, \{S. C.\} and M. Aleksa and Aleksandrov, \{I. N.\} and G. Alexander and A. Ashkenazi and L. Barak and G. Bella and Y. Benhammou and T. Cao and E. Etzion and O. Kuprash and Lutz, \{M. S.\} and Y. Oren and M. Pitt and A. Soffer",

note = "Publisher Copyright: {\textcopyright} 2018, The Author(s).",

year = "2018",

month = jun,

day = "1",

doi = "10.1007/JHEP06(2018)166",

language = "אנגלית",

volume = "2018",

journal = "Journal of High Energy Physics",

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TY - JOUR

T1 - Search for Higgs boson decays to beyond-the-Standard-Model light bosons in four-lepton events with the ATLAS detector at √s=13 TeV

AU - The ATLAS collaboration

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdinov, O.

AU - Abeloos, B.

AU - Abidi, S. H.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adachi, S.

AU - Adamczyk, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agatonovic-Jovin, T.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akatsuka, S.

AU - Akerstedt, H.

AU - Åkesson, T. P.A.

AU - Akilli, E.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albicocco, P.

AU - Alconada Verzini, M. J.

AU - Alderweireldt, S. C.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexander, G.

AU - Ashkenazi, A.

AU - Barak, L.

AU - Bella, G.

AU - Benhammou, Y.

AU - Cao, T.

AU - Etzion, E.

AU - Kuprash, O.

AU - Lutz, M. S.

AU - Oren, Y.

AU - Pitt, M.

AU - Soffer, A.

PY - 2018/6/1

Y1 - 2018/6/1

N2 - 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.[Figure not available: see fulltext.].

AB - 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.[Figure not available: see fulltext.].

KW - Beyond Standard Model

KW - Hadron-Hadron scattering (experiments)

UR - https://www.scopus.com/pages/publications/85049554080

U2 - 10.1007/JHEP06(2018)166

DO - 10.1007/JHEP06(2018)166

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:85049554080

SN - 1126-6708

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 6

M1 - 166

ER -

Search for Higgs boson decays to beyond-the-Standard-Model light bosons in four-lepton events with the ATLAS detector at √s=13 TeV

Abstract

Funding

Keywords

Access to Document

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