Constraints on standard model effective field theory for a Higgs boson produced in association with W or Z bosons in the H$\\to\\mathrm{b\\bar{b}}$ decay channel in proton-proton collisions at $\\sqrt{s}$ = 13 TeV

A standard model effective field theory (SMEFT) analysis with dimension-six operators probing nonresonant new physics effects is performed in the Higgs-strahlung process, where the Higgs boson is produced in association with a W or Z boson, in proton-proton collisions at a center-of-mass energy of 13 TeV. The final states in which the W or Z boson decays leptonically and the Higgs boson decays to a pair of bottom quarks are considered. The analyzed data were collected by the CMS experiment between 2016 and 2018 and correspond to an integrated luminosity of 138 fb$^{-1}$. An approach designed to simultaneously optimize the sensitivity to Wilson coefficients of multiple SMEFT operators is employed. Likelihood scans as functions of the Wilson coefficients that carry SMEFT sensitivity in this final state are performed for different expansions in SMEFT. The results are consistent with the predictions of the standard model.

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Desy Publications Database (Deutsches Elektronen-Synchrotron DESY)
Published
2024-12-06
Primary Topic
Particle physics theoretical and experimental studies
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article

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article

Constraints on standard model effective field theory for a Higgs boson produced in association with W or Z bosons in the H$\\to\\mathrm{b\\bar{b}}$ decay channel in proton-proton collisions at $\\sqrt{s}$ = 13 TeV

Vladimir Chekhovsky
Desy Publications Database (Deutsches Elektronen-Synchrotron DESY)
Particle physics theoretical and experimental studies
article

Constraints on standard model effective field theory for a Higgs boson produced in association with W or Z bosons in the H$\\to\\mathrm{b\\bar{b}}$ decay channel in proton-proton collisions at $\\sqrt{s}$ = 13 TeV

Vladimir Chekhovsky
article en

Abstract

A standard model effective field theory (SMEFT) analysis with dimension-six operators probing nonresonant new physics effects is performed in the Higgs-strahlung process, where the Higgs boson is produced in association with a W or Z boson, in proton-proton collisions at a center-of-mass energy of 13 TeV. The final states in which the W or Z boson decays leptonically and the Higgs boson decays to a pair of bottom quarks are considered. The analyzed data were collected by the CMS experiment between 2016 and 2018 and correspond to an integrated luminosity of 138 fb$^{-1}$. An approach designed to simultaneously optimize the sensitivity to Wilson coefficients of multiple SMEFT operators is employed. Likelihood scans as functions of the Wilson coefficients that carry SMEFT sensitivity in this final state are performed for different expansions in SMEFT. The results are consistent with the predictions of the standard model.

Desy Publications Database (Deutsches Elektronen-Synchrotron DESY)
A. Alikhanyan National Laboratory (AM)
National Science Foundation, U.S. Department of Energy, Alfred P. Sloan Foundation, Alexander von Humboldt-Stiftung, Nvidia, Weston Havens Foundation, CERN, Türkiye Enerji, Nükleer ve Maden Araştırma Kurumu, European Commission, Department of Science and Technology, Ministry of Science and Technology, India, Science Foundation Ireland, Deutsche Forschungsgemeinschaft, Fundação de Amparo à Pesquisa do Estado de São Paulo, National Natural Science Foundation of China, Ministerstvo Školství, Mládeže a Tělovýchovy, Fonds National de la Recherche Luxembourg, National Science Council, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Bundesministerium für Bildung und Forschung, Austrian Science Fund, Fonds De La Recherche Scientifique - FNRS, Belgian Federal Science Policy Office, Fonds Wetenschappelijk Onderzoek, Consejo Nacional de Ciencia y Tecnología, Bulgarian National Science Fund, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Ministry of Science, ICT and Future Planning, Magyar Tudományos Akadémia, A.G. Leventis Foundation, National Science and Technology Development Agency, Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul, Secretaría de Educación Superior, Ciencia, Tecnología e Innovación, Türkiye Bilimsel ve Teknolojik Araştırma Kurumu, Ministry of Education, India, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, National Academy of Sciences of Ukraine, Shota Rustaveli National Science Foundation, Universidad Autónoma de San Luis Potosí, Latvijas Zinātnes Padome, Benemérita Universidad Autónoma de Puebla, Pakistan Atomic Energy Commission, Ministry of Science,Technology and Research, Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, Hellenic Foundation for Research and Innovation, Ministry of Higher Education, Science, Research and Innovation, Thailand, Qatar National Research Fund, Science and Technology Facilities Council, Fundação para a Ciência e a Tecnologia, Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture, European Regional Development Fund, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Agencia Estatal de Investigación, Fundamental Research Funds for the Central Universities
Particle physics theoretical and experimental studies
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