Measurement of Energy Correlators inside Jets and Determination of the Strong Coupling α_s(m_Z)

Energy correlators that describe energy-weighted distances between two or three particles in a hadronic jet are measured using an event sample of √s = 13 TeV proton-proton collisions collected by the CMS experiment and corresponding to an integrated luminosity of 36.3 fb⁻¹. The measured distributions are consistent with the trends in the simulation that reveal two key features of the strong interaction: confinement and asymptotic freedom. By comparing the ratio of the measured three- and two-particle energy correlator distributions with theoretical calculations that resum collinear emissions at approximate next-to-next-to-leading-logarithmic accuracy matched to a next-to-leading-order calculation, the strong coupling is determined at the Z boson mass: α_S(m_Z) = 0.1229₋₀.₀₀₅₀⁺⁰.⁰⁰⁴⁰, the most precise α_S(m_Z) value obtained using jet substructure observables.

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Publication Details

Journal
Repository for Publications and Research Data (ETH Zurich)
Published
2024-08-16
DOI
https://doi.org/10.3929/ethz-b-000691662
Citations
18
Primary Topic
Particle physics theoretical and experimental studies
Type
article
Field-Weighted Citation Impact
11.87

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article

Measurement of Energy Correlators inside Jets and Determination of the Strong Coupling α_s(m_Z)

S. Templ, W. Waltenberger, P. Van Mechelen, M. Sonawane et al.
18 citations
Repository for Publications and Research Data (ETH Zurich)
Particle physics theoretical and experimental studies
11.87
article

Measurement of Energy Correlators inside Jets and Determination of the Strong Coupling α_s(m_Z)

S. Templ, W. Waltenberger, P. Van Mechelen, M. Sonawane, K. Damanakis, D. Vannerom, S. Van Putte, D. Schwarz, A. De Moor, X. Janssen, B. Clerbaux, I. Mikulec, S. Lowette, H. El Faham, J. D’Hondt, W. Adam, M. Jeitler, I. Makarenko, E. S. Bols, M. Dragicevic, J. Schieck, S. Tavernier, M. Delcourt, M. R. Darwish, G. P. Van Onsem, D. Müller, M. Tytgat, M. Dittmar, A. Hayrapetyan, A. Li, C.-E. Wulz, A. R. Sahasransu, J. W. Andrejkovic, T. Bergauer, S. Chatterjee, R. Schöfbeck
article en
18 citations

Abstract

Energy correlators that describe energy-weighted distances between two or three particles in a hadronic jet are measured using an event sample of √s = 13 TeV proton-proton collisions collected by the CMS experiment and corresponding to an integrated luminosity of 36.3 fb⁻¹. The measured distributions are consistent with the trends in the simulation that reveal two key features of the strong interaction: confinement and asymptotic freedom. By comparing the ratio of the measured three- and two-particle energy correlator distributions with theoretical calculations that resum collinear emissions at approximate next-to-next-to-leading-logarithmic accuracy matched to a next-to-leading-order calculation, the strong coupling is determined at the Z boson mass: α_S(m_Z) = 0.1229₋₀.₀₀₅₀⁺⁰.⁰⁰⁴⁰, the most precise α_S(m_Z) value obtained using jet substructure observables.

Repository for Publications and Research Data (ETH Zurich)
Université Libre de Bruxelles (BE), A. Alikhanyan National Laboratory (AM), Vrije Universiteit Brussel (BE), University of Antwerp (BE), Institute of High Energy Physics (AT)
National Science Foundation, U.S. Department of Energy, Purdue University, Vanderbilt University, Massachusetts Institute of Technology, California Institute of Technology, University of Wisconsin-Madison, Baylor University, University of Florida, University of Nebraska-Lincoln, Karlsruhe Institute of Technology, Queen Mary University of London, Secretaría de Educación Pública, Keemilise ja Bioloogilise Füüsika Instituut, CERN, Ministarstvo znanosti i obrazovanja, San Diego Supercomputer Center, National Energy Research Scientific Computing Center, Türkiye Enerji, Nükleer ve Maden Araştırma Kurumu, Imperial College London, University of Oxford, University of Glasgow, University of Bristol, Tata Institute of Fundamental Research, Department of Science and Technology, Ministry of Science and Technology, India, Department of Atomic Energy, Government of India, Science Foundation Ireland, Helmholtz-Gemeinschaft, Deutsche Forschungsgemeinschaft, Fundação de Amparo à Pesquisa do Estado de São Paulo, National Natural Science Foundation of China, Izglītības un zinātnes ministrija, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Academy of Finland, Chinese Academy of Sciences, Austrian Science Fund, Kyungpook National University, Fonds De La Recherche Scientifique - FNRS, Ministry of Science and Technology of the People's Republic of China, Fonds Wetenschappelijk Onderzoek, Consejo Nacional de Ciencia y Tecnología, Ministerio de Economía y Competitividad, Bulgarian National Science Fund, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Ministry of Science, ICT and Future Planning, Korea Institute of Science and Technology Information, National Research Foundation of Korea, Joint Institute for Nuclear Research, Orta Doğu Teknik Üniversitesi, National Science and Technology Development Agency, Quaid-i-Azam University, Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul, Narodowe Centrum Nauki, Secretaría de Educación Superior, Ciencia, Tecnología e Innovación, Universiti Malaya, Türkiye Bilimsel ve Teknolojik Araştırma Kurumu, Hrvatska Zaklada za Znanost, Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Ministry for Business Innovation and Employment, National Academy of Sciences of Ukraine, Centre National de la Recherche Scientifique, Shota Rustaveli National Science Foundation, Ministerio de Ciencia e Innovación, Universidad Autónoma de San Luis Potosí, Ministry of Education and Science, Institute for Research in Fundamental Sciences, Benemérita Universidad Autónoma de Puebla, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Bundesministerium für Bildung und Frauen, Universidade do Estado do Rio de Janeiro, RWTH Aachen University, Brunel University London, Pakistan Atomic Energy Commission, Ministry of Science,Technology and Research, Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, Bundesministerium für Bildung, Wissenschaft und Forschung, Kementerian Pendidikan Malaysia, Ministry of Higher Education, Science, Research and Innovation, Thailand, Instituto de Física de Cantabria, Centro Svizzero di Calcolo Scientifico, University of Ioannina, Laboratorio Nacional de Supercómputo del Sureste de Mexico, University of Colorado Boulder, University of California, San Diego, Science and Technology Facilities Council, European Research Council, Deutsches Elektronen-Synchrotron, Fundação para a Ciência e a Tecnologia, Instituto Nazionale di Fisica Nucleare, Université Catholique de Louvain, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Agencia Estatal de Investigación, Institute of High Energy Physics, Institut National de Physique Nucléaire et de Physique des Particules, Royal Holloway, University of London, Wigner Fizikai Kutatóközpont, Magyar Tudományos Akadémia, Rutherford Appleton Laboratory, Fermilab
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Particle physics theoretical and experimental studies
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