Search for H→γγ produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1016/j.physletb.2014.11.049

Search for H→γγ produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector

ATLAS Collaboration

School of Physics and Astronomy

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

76 Scopus citations

Abstract

A search is performed for Higgs bosons produced in association with top quarks using the diphoton decay mode of the Higgs boson. Selection requirements are optimized separately for leptonic and fully hadronic final states from the top quark decays. The dataset used corresponds to an integrated luminosity of 4.5 fb⁻¹ of proton–proton collisions at a center-of-mass energy of 7 TeV and 20.3 fb⁻¹ at 8 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess over the background prediction is observed and upper limits are set on the tt¯H production cross section. The observed exclusion upper limit at 95% confidence level is 6.7 times the predicted Standard Model cross section value. In addition, limits are set on the strength of the Yukawa coupling between the top quark and the Higgs boson, taking into account the dependence of the tt¯H and tH cross sections as well as the H→γγ branching fraction on the Yukawa coupling. Lower and upper limits at 95% confidence level are set at −1.3 and +8.0 times the Yukawa coupling strength in the Standard Model.

Original language	English
Pages (from-to)	222-242
Number of pages	21
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	740
DOIs	https://doi.org/10.1016/j.physletb.2014.11.049
State	Published - 5 Jan 2015

Funding

Funders	Funder number
Not added	ST/N000420/1
CEA-DSM
Cantons of Bern and Geneva
Czech Republic
DNSRC
IRFU
MES of Russia
MIZŠ
MNE
MSMT
MSSR
MSTD
NSRF
RCN
VSC CR
Wallenberg Foundation
National Science Foundation	1119200
U.S. Department of Energy
Semiconductor Research Corporation
Biomedical Research Foundation of Northwest Louisiana
Human Growth Foundation
Alexander von Humboldt-Stiftung
American Roentgen Ray Society
California Department of Fish and Wildlife
Appalachian Regional Commission
Ministry of Science and Technology
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Cummings Foundation
National Research Council Sri Lanka
School of Energy Resources, University of Wyoming
Center for African Studies
Türkiye Atom Enerjisi Kurumu
H2020 European Research Council
Biomedical Research Foundation
Seventh Framework Programme	246806
Arizona-Nevada Academy of Science
CERN
Glycemic Index Foundation
Natural Sciences and Engineering Research Council of Canada
National Research Council Canada
Canada Foundation for Innovation
Science and Technology Facilities Council	ST/L001195/1, ST/J00474X/1, ST/M004821/1, ST/M002306/1, ST/J004928/1, ST/L003414/1, GRIDPP, ST/K001310/1, ST/L006464/1, ST/M503575/1, ST/J501074/1, ST/L003112/1, ST/J005525/1, ST/M001504/1, ST/K001248/1, ST/L003325/1, ST/I000178/1, ST/G50228X/1, ST/K001418/1, 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/H00100X/2, ST/K000705/1, ST/L003511/1, PP/E003087/1, ST/N000307/1, PP/E000355/1, ST/M001474/1, ST/I00372X/1, PP/E002846/1, ST/K003658/1, ST/J005487/1, ST/I006056/1, ST/M003213/1, PP/E000444/1, ST/K00137X/1, ST/N000277/1, ST/J005576/1
Leverhulme Trust
Royal Society
European Commission	IN2P3-CNRS
European Research Council
Australian Research Council
National Stroke Foundation
Neurosurgical Research Foundation
Department of Science and Technology, Ministry of Science and Technology, India
Helmholtz-Gemeinschaft
Minerva Foundation
Deutsche Forschungsgemeinschaft
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung	156083
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
Foundation for Fundamental Research on Matter
Bundesministerium für Wissenschaft, Forschung und Wirtschaft
General Secretariat for Research and Technology
Lundbeckfonden
Conselho Nacional de Desenvolvimento Científico e Tecnológico
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 Nauki i Szkolnictwa Wyższego
Ministry of Science and Technology, Taiwan
Georgian National Science Foundation
Israeli Centers for Research Excellence
Centre National pour la Recherche Scientifique et Technique
Bundesministerium für Bildung und Frauen
State Atomic Energy Corporation ROSATOM
Consejo Nacional de Innovación, Ciencia y Tecnología
Fundació Catalana de Trasplantament
Council on grants of the President of the Russian Federation
Sociedad Española de Reumatología
Institutul de Fizică Atomică

Keywords

Diphoton decay
Higgs boson
Top quark
Yukawa coupling
tH
tt¯H

Access to Document

10.1016/j.physletb.2014.11.049

Cite this

ATLAS Collaboration (2015). Search for H→γγ produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 740, 222-242. https://doi.org/10.1016/j.physletb.2014.11.049

@article{3e688f425c434f62916b8463a80e1129,

title = "Search for H→γγ produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector",

abstract = "A search is performed for Higgs bosons produced in association with top quarks using the diphoton decay mode of the Higgs boson. Selection requirements are optimized separately for leptonic and fully hadronic final states from the top quark decays. The dataset used corresponds to an integrated luminosity of 4.5 fb−1 of proton–proton collisions at a center-of-mass energy of 7 TeV and 20.3 fb−1 at 8 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess over the background prediction is observed and upper limits are set on the tt¯H production cross section. The observed exclusion upper limit at 95% confidence level is 6.7 times the predicted Standard Model cross section value. In addition, limits are set on the strength of the Yukawa coupling between the top quark and the Higgs boson, taking into account the dependence of the tt¯H and tH cross sections as well as the H→γγ branching fraction on the Yukawa coupling. Lower and upper limits at 95% confidence level are set at −1.3 and +8.0 times the Yukawa coupling strength in the Standard Model.",

keywords = "Diphoton decay, Higgs boson, Top quark, Yukawa coupling, tH, tt¯H",

author = "{ATLAS Collaboration} and G. Aad and B. Abbott and J. Abdallah and {Abdel Khalek}, S. and O. Abdinov and R. Aben and B. Abi 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 T. Agatonovic-Jovin and Aguilar-Saavedra, {J. A.} and M. Agustoni and Ahlen, {S. P.} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, {T. P.A.} and G. Akimoto and Akimov, {A. V.} and Alberghi, {G. L.} and J. Albert and S. Albrand and {Alconada Verzini}, {M. J.} and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob 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 Y. Silver and A. Soffer",

note = "Publisher Copyright: {\textcopyright} 2014 The Authors",

year = "2015",

month = jan,

day = "5",

doi = "10.1016/j.physletb.2014.11.049",

language = "אנגלית",

volume = "740",

pages = "222--242",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

ATLAS Collaboration 2015, 'Search for H→γγ produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 740, pp. 222-242. https://doi.org/10.1016/j.physletb.2014.11.049

Search for H→γγ produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector. / ATLAS Collaboration.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 740, 05.01.2015, p. 222-242.

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

TY - JOUR

T1 - Search for H→γγ produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector

AU - ATLAS Collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdel Khalek, S.

AU - Abdinov, O.

AU - Aben, R.

AU - Abi, B.

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 - Agatonovic-Jovin, T.

AU - Aguilar-Saavedra, J. A.

AU - Agustoni, M.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akerstedt, H.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albrand, S.

AU - Alconada Verzini, M. J.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexandre, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

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 - Silver, Y.

AU - Soffer, A.

PY - 2015/1/5

Y1 - 2015/1/5

N2 - A search is performed for Higgs bosons produced in association with top quarks using the diphoton decay mode of the Higgs boson. Selection requirements are optimized separately for leptonic and fully hadronic final states from the top quark decays. The dataset used corresponds to an integrated luminosity of 4.5 fb−1 of proton–proton collisions at a center-of-mass energy of 7 TeV and 20.3 fb−1 at 8 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess over the background prediction is observed and upper limits are set on the tt¯H production cross section. The observed exclusion upper limit at 95% confidence level is 6.7 times the predicted Standard Model cross section value. In addition, limits are set on the strength of the Yukawa coupling between the top quark and the Higgs boson, taking into account the dependence of the tt¯H and tH cross sections as well as the H→γγ branching fraction on the Yukawa coupling. Lower and upper limits at 95% confidence level are set at −1.3 and +8.0 times the Yukawa coupling strength in the Standard Model.

AB - A search is performed for Higgs bosons produced in association with top quarks using the diphoton decay mode of the Higgs boson. Selection requirements are optimized separately for leptonic and fully hadronic final states from the top quark decays. The dataset used corresponds to an integrated luminosity of 4.5 fb−1 of proton–proton collisions at a center-of-mass energy of 7 TeV and 20.3 fb−1 at 8 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess over the background prediction is observed and upper limits are set on the tt¯H production cross section. The observed exclusion upper limit at 95% confidence level is 6.7 times the predicted Standard Model cross section value. In addition, limits are set on the strength of the Yukawa coupling between the top quark and the Higgs boson, taking into account the dependence of the tt¯H and tH cross sections as well as the H→γγ branching fraction on the Yukawa coupling. Lower and upper limits at 95% confidence level are set at −1.3 and +8.0 times the Yukawa coupling strength in the Standard Model.

KW - Diphoton decay

KW - Higgs boson

KW - Top quark

KW - Yukawa coupling

KW - tH

KW - tt¯H

UR - http://www.scopus.com/inward/record.url?scp=85040618126&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2014.11.049

DO - 10.1016/j.physletb.2014.11.049

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

AN - SCOPUS:85040618126

SN - 0370-2693

VL - 740

SP - 222

EP - 242

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

Search for H→γγ produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector

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