Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the H → γγ decay channel at √s=8 TeV with the ATLAS detector

ATLAS Collaboration

Research output: Contribution to journalArticlepeer-review


The strength and tensor structure of the Higgs boson's interactions are investigated using an effective Lagrangian, which introduces additional CP-even and CP-odd interactions that lead to changes in the kinematic properties of the Higgs boson and associated jet spectra with respect to the Standard Model. The parameters of the effective Lagrangian are probed using a fit to five differential cross sections previously measured by the ATLAS experiment in the H→γγ decay channel with an integrated luminosity of 20.3 fb−1 at s=8 TeV. In order to perform a simultaneous fit to the five distributions, the statistical correlations between them are determined by re-analysing the H→γγ candidate events in the proton–proton collision data. No significant deviations from the Standard Model predictions are observed and limits on the effective Lagrangian parameters are derived. The statistical correlations are made publicly available to allow for future analysis of theories with non-Standard Model interactions.

Original languageEnglish
Pages (from-to)69-85
Number of pages17
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
StatePublished - 10 Feb 2016


FundersFunder number
Not addedST/N000420/1
AvH Foundation
Benoziyo Center , Israel
Canada Council
Cantons of Bern and Geneva
MES of Russia
Minerva , Israel
Region Auvergne
National Science Foundation1119200, 1410972, 1506173
U.S. Department of Energy
Blowitz-Ridgeway Foundation
Bloom's Syndrome Foundation
Human Growth Foundation
American Roentgen Ray Society
Arkansas Space Grant Consortium
Brookhaven National Laboratory
California Department of Fish and Wildlife
Scientific Education and Research Institute
CRC Health Group
Ministry of Science and Technology
University of Kentucky
Agricultural Research Council
Departamento Administrativo de Ciencia, Tecnología e Innovación
Cummings Foundation
Ontario Innovation Trust
Poultry Industry Council
National Research Council Sri Lanka
Türkiye Atom Enerjisi Kurumu
H2020 European Research Council
H2020 Marie Skłodowska-Curie Actions
Biomedical Research Foundation
Seventh Framework Programme246806
Arizona-Nevada Academy of Science
University of Washington College of Arts and Sciences
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 CouncilPP/E000347/1, ST/L001195/1, ST/J00474X/1, ST/M001407/1, ST/M002039/1, ST/M002306/1, ST/M006980/1, ST/K001361/1, ST/L003414/1, GRIDPP, ST/K001310/1, ST/L006464/1, ST/M001733/1, ST/L00352X/1, PP/D002915/1, ST/H00100X/1, ST/L001144/1, ST/L003112/1, ST/J005525/1, ST/K00073X/1, ST/H00100X/2, ST/K000705/1, ST/L003511/1, ST/M001504/1, ST/K001248/1, ST/M000761/1, ST/I000178/1, ST/G50228X/1, PP/E000355/1, ST/H001093/2, ST/M001431/1, ST/K001418/1, ST/K00140X/1, ST/M001474/1, ST/H001093/1, ST/I00372X/1, PP/E002846/1, ST/J005487/1, ST/I006056/1, ST/K001302/1, PP/E000444/1, ST/K00137X/1, ST/N000463/1, ST/K001329/1, ST/N000277/1, ST/L001179/1
Leverhulme Trust
Royal Society
British Skin Foundation
European Research Council
Australian Research Council
National Stroke Foundation
Singapore Eye Research Institute
Deutsche Forschungsgemeinschaft
Agence Nationale de la Recherche
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung156083
Danmarks Grundforskningsfond
German-Israeli Foundation for Scientific Research and Development
Canada Foundation for Innovation
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Fundação para a Ciência e a Tecnologia
Bundesministerium für Bildung und Forschung
Austrian Science Fund
Comisión Nacional de Investigación Científica y Tecnológica
Agencia Nacional de Promoción Científica y Tecnológica
Fonds Québécois de la Recherche sur la Nature et les Technologies
Ministerstvo Zdravotnictví Ceské Republiky
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
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Ministry of Science and Technology
Joint Institute for Nuclear Research
Israel Science Foundation
Instituto Nazionale di Fisica Nucleare
Narodowe Centrum Nauki
Javna Agencija za Raziskovalno Dejavnost RS
Narodowym Centrum Nauki
Ministerstwo Nauki i Szkolnictwa Wyższego
Georgian National Science Foundation
Seventh Framework Programme
Israeli Centers for Research Excellence
Centre National pour la Recherche Scientifique et Technique
Bundesministerium für Bildung und Frauen
Horizon 2020
British Columbia Knowledge Development Fund
Strategic Research Council
Consejo Nacional de Innovación, Ciencia y Tecnología
Fundació Catalana de Trasplantament
Marianne and Marcus Wallenberg Foundation
Fondation Partager le Savoir
National Research Center "Kurchatov Institute"
Ministry of Health of the Russian Federation


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