Study of the spin and parity of the Higgs boson in Diboson decays with the ATLAS detector

ATLAS Collaboration

doi:10.1140/epjc/s10052-015-3685-1

Study of the spin and parity of the Higgs boson in Diboson decays with the ATLAS detector

ATLAS Collaboration

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

186 Scopus citations

Abstract

Studies of the spin, parity and tensor couplings of the Higgs boson in the H → ZZ∗ → 4ℓ, H → WW^∗ → eνμν and H → γγ decay processes at the LHC are presented. The investigations are based on 25 fb⁻¹ of pp collision data collected by the ATLAS experiment at √s = 7 TeV and √s = 8 TeV. The Standard Model (SM) Higgs boson hypothesis, corresponding to the quantum numbers J^P = 0⁺, is tested against several alternative spin scenarios, including non-SM spin-0 and spin-2 models with universal and non-universal couplings to fermions and vector bosons. All tested alternative models are excluded in favour of the SM Higgs boson hypothesis at more than 99.9% confidence level. Using the H → ZZ^∗ → 4ℓ and H → WW^∗ → eνμν decays, the tensor structure of the interaction between the spin-0 boson and the SM vector bosons is also investigated. The observed distributions of variables sensitive to the non-SM tensor couplings are compatible with the SM predictions and constraints on the non-SM couplings are derived.

Original language	English
Article number	476
Journal	European Physical Journal C
Volume	75
Issue number	10
DOIs	https://doi.org/10.1140/epjc/s10052-015-3685-1
State	Published - 2015

Funding

Funders	Funder number
Not added	ST/L000326/1, ST/N000420/1
CEA-DSM
Cantons of Bern and Geneva
Czech Republic
DNSRC
IRFU
MES of Russia
MIZŠ
MNE
MSMT
MSSR
MSTD
NSRF
RCN
RGC
VSC CR
Wallenberg Foundation
National Science Foundation	1119200, 1404362, 1410972, 1506173
U.S. Department of Energy
Alexander von Humboldt-Stiftung
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Türkiye Atom Enerjisi Kurumu
Biomedical Research Foundation
Seventh Framework Programme	246806
Arizona-Nevada Academy of Science
CERN
Natural Sciences and Engineering Research Council of Canada
National Research Council Canada
Canada Foundation for Innovation
Science and Technology Facilities Council	PP/E000347/1, ST/L001195/1, ST/J00474X/1, ST/M004821/1, ST/M002306/1, ST/J004928/1, ST/K001361/1, ST/L003414/1, GRIDPP, ST/K001310/1, ST/L00352X/1, ST/M503575/1, ST/J501074/1, ST/L001144/1, ST/L003112/1, ST/J005525/1, ST/M001504/1, ST/K001248/1, ST/L003325/1, ST/M000761/1, ST/I000178/1, ST/G50228X/1, ST/H001093/2, ST/M001431/1, ST/K001418/1, ST/H001093/1, ST/K001302/1, ST/K001388/1, ST/K001329/1, ST/K50208X/1, ST/L001179/1, ST/I005803/1, ST/J004944/1, ST/M001407/1, ST/I006080/1, ST/L006480/1, ST/I000186/1, ST/M006980/1, ST/G502320/1, ST/M001733/1, PP/D002915/1, ST/M000664/1, ST/H00100X/1, ST/L000970/1, ST/K00073X/1, ST/H00100X/2, ST/K000705/1, ST/L003511/1, PP/E003087/1, ST/N000307/1, PP/E000355/1, ST/K00140X/1, ST/M001474/1, ST/I00372X/1, PP/E002846/1, ST/K003658/1, ST/J005487/1, ST/I006056/1, ST/M003213/1, ST/K00137X/1, ST/N000277/1, ST/J005576/1
Leverhulme Trust
Royal Society
European Commission	IN2P3-CNRS
European Research Council
Australian Research Council
Department of Science and Technology, Ministry of Science and Technology, India
Helmholtz-Gemeinschaft
Minerva Foundation
Deutsche Forschungsgemeinschaft
Japan Society for the Promotion of Science	26247038, 26800140
Ministry of Education, Culture, Sports, Science and Technology
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung	156083, 149246
Stichting voor Fundamenteel Onderzoek der Materie
Danmarks Grundforskningsfond
German-Israeli Foundation for Scientific Research and Development
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
National Science Council
Fundação para a Ciência e a Tecnologia
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
Austrian Science Fund
Comisión Nacional de Investigación Científica y Tecnológica
Agencia Nacional de Promoción Científica y Tecnológica
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Ministerio de Economía y Competitividad
Bundesministerium für Wissenschaft, Forschung und Wirtschaft
General Secretariat for Research and Technology
Lundbeckfonden
Conselho Nacional de Desenvolvimento Científico e Tecnológico
National Research Foundation of Korea
Joint Institute for Nuclear Research
Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science
Israel Science Foundation
Instituto Nazionale di Fisica Nucleare
Max-Planck-Gesellschaft
Narodowe Centrum Nauki
Javna Agencija za Raziskovalno Dejavnost RS
Ministerstwo Edukacji i Nauki
Ministry of Science and Technology, Taiwan
Georgian National Science Foundation
Israeli Centers for Research Excellence
Centre National pour la Recherche Scientifique et Technique
Council on grants of the President of the Russian Federation
Sociedad Española de Reumatología
National Research Center "Kurchatov Institute"
Institutul de Fizică Atomică

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10.1140/epjc/s10052-015-3685-1

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@article{0b443dae10724595923656185b9130e0,

title = "Study of the spin and parity of the Higgs boson in Diboson decays with the ATLAS detector",

abstract = "Studies of the spin, parity and tensor couplings of the Higgs boson in the H → ZZ∗ → 4ℓ, H → WW∗ → eνμν and H → γγ decay processes at the LHC are presented. The investigations are based on 25 fb−1 of pp collision data collected by the ATLAS experiment at √s = 7 TeV and √s = 8 TeV. The Standard Model (SM) Higgs boson hypothesis, corresponding to the quantum numbers JP = 0+, is tested against several alternative spin scenarios, including non-SM spin-0 and spin-2 models with universal and non-universal couplings to fermions and vector bosons. All tested alternative models are excluded in favour of the SM Higgs boson hypothesis at more than 99.9% confidence level. Using the H → ZZ∗ → 4ℓ and H → WW∗ → eνμν decays, the tensor structure of the interaction between the spin-0 boson and the SM vector bosons is also investigated. The observed distributions of variables sensitive to the non-SM tensor couplings are compatible with the SM predictions and constraints on the non-SM couplings are derived.",

author = "{ATLAS Collaboration} and G. Aad and B. Abbott and J. Abdallah and O. Abdinov and R. Aben and M. Abolins and Abouzeid, {O. S.} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, {B. S.} and L. Adamczyk and Adams, {D. L.} and J. Adelman and S. Adomeit and T. Adye and Affolder, {A. A.} and T. Agatonovic-Jovin and J. Agricola and Aguilar-Saavedra, {J. A.} and Ahlen, {S. P.} and F. Ahmadov and G. Aielli and H. Akerstedt and {A. {\AA}kesson}, {T. P.} and Akimov, {A. V.} and Alberghi, {G. L.} and J. Albert and S. Albrand and Verzini, {M. J.Alconada} and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and G. Alexander and T. Alexopoulos and M. Alhroob and G. Alimonti and L. Alio and J. Alison and Alkire, {S. P.} and A. Ashkenazi and L. Barak and G. Bella and Y. Benhammou and T. Cao and E. Etzion and Y. Oren and M. Pitt and A. Soffer",

note = "Publisher Copyright: {\textcopyright} CERN for the benefit of the ATLAS collaboration 2015.",

year = "2015",

doi = "10.1140/epjc/s10052-015-3685-1",

language = "אנגלית",

volume = "75",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "10",

}

TY - JOUR

T1 - Study of the spin and parity of the Higgs boson in Diboson decays with the ATLAS detector

AU - ATLAS Collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdinov, O.

AU - Aben, R.

AU - Abolins, M.

AU - Abouzeid, O. S.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adye, T.

AU - Affolder, A. A.

AU - Agatonovic-Jovin, T.

AU - Agricola, J.

AU - Aguilar-Saavedra, J. A.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akerstedt, H.

AU - A. Åkesson, T. P.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albrand, S.

AU - Verzini, M. J.Alconada

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Alimonti, G.

AU - Alio, L.

AU - Alison, J.

AU - Alkire, S. P.

AU - Ashkenazi, A.

AU - Barak, L.

AU - Bella, G.

AU - Benhammou, Y.

AU - Cao, T.

AU - Etzion, E.

AU - Oren, Y.

AU - Pitt, M.

AU - Soffer, A.

PY - 2015

Y1 - 2015

N2 - Studies of the spin, parity and tensor couplings of the Higgs boson in the H → ZZ∗ → 4ℓ, H → WW∗ → eνμν and H → γγ decay processes at the LHC are presented. The investigations are based on 25 fb−1 of pp collision data collected by the ATLAS experiment at √s = 7 TeV and √s = 8 TeV. The Standard Model (SM) Higgs boson hypothesis, corresponding to the quantum numbers JP = 0+, is tested against several alternative spin scenarios, including non-SM spin-0 and spin-2 models with universal and non-universal couplings to fermions and vector bosons. All tested alternative models are excluded in favour of the SM Higgs boson hypothesis at more than 99.9% confidence level. Using the H → ZZ∗ → 4ℓ and H → WW∗ → eνμν decays, the tensor structure of the interaction between the spin-0 boson and the SM vector bosons is also investigated. The observed distributions of variables sensitive to the non-SM tensor couplings are compatible with the SM predictions and constraints on the non-SM couplings are derived.

AB - Studies of the spin, parity and tensor couplings of the Higgs boson in the H → ZZ∗ → 4ℓ, H → WW∗ → eνμν and H → γγ decay processes at the LHC are presented. The investigations are based on 25 fb−1 of pp collision data collected by the ATLAS experiment at √s = 7 TeV and √s = 8 TeV. The Standard Model (SM) Higgs boson hypothesis, corresponding to the quantum numbers JP = 0+, is tested against several alternative spin scenarios, including non-SM spin-0 and spin-2 models with universal and non-universal couplings to fermions and vector bosons. All tested alternative models are excluded in favour of the SM Higgs boson hypothesis at more than 99.9% confidence level. Using the H → ZZ∗ → 4ℓ and H → WW∗ → eνμν decays, the tensor structure of the interaction between the spin-0 boson and the SM vector bosons is also investigated. The observed distributions of variables sensitive to the non-SM tensor couplings are compatible with the SM predictions and constraints on the non-SM couplings are derived.

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AN - SCOPUS:84947594156

SN - 1434-6044

VL - 75

JO - European Physical Journal C

JF - European Physical Journal C

IS - 10

M1 - 476

ER -

Study of the spin and parity of the Higgs boson in Diboson decays with the ATLAS detector

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