Search for heavy particles in the b-tagged dijet mass distribution with additional b-tagged jets in proton-proton collisions at √s=13 TeV with the ATLAS experiment
Metadatos
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American Physical Society
Fecha
2022-01-07Referencia bibliográfica
ATLAS collaboration. (2022). Search for heavy particles in the b-tagged dijet mass distribution with additional b-tagged jets in proton-proton collisions at √s=13 TeV with the ATLAS experiment. Physical Review D, 105(1), 012001. [https://doi.org/10.1103/PhysRevD.105.012001]
Patrocinador
ANID; BSF-NSF; CEA-DRF; Cantons of Bern and Geneva; Czech Republic; DNSRC IN2P3-CNRS; EU-ESF; GIF, Israel; GenT Programmes Generalitat Valenciana, Spain; IRFU; La Caixa Banking Foundation; MES of Russia; MESTD; MIZŠ; MSMT; MSSR; Norwegian Financial Mechanism; PROMETEO; RGC; VSC CR; Wallenberg Foundation; National Science Foundation; U.S. Department of Energy; Alexander von Humboldt-Stiftung; Canarie; H2020 Marie Skłodowska-Curie Actions; Arizona-Nevada Academy of Science; CERN; Compute Canada; Göran Gustafssons Stiftelser; Natural Sciences and Engineering Research Council of Canada; National Research Council Canada; Canada Foundation for Innovation; Science and Technology Facilities Council; Leverhulme Trust; Royal Society; European Research Council; European Cooperation in Science and Technology; Australian Research Council; Neurosurgical Research Foundation; Singapore Eye Research Institute; Helmholtz-Gemeinschaft; 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 Forschung; Danmarks Grundforskningsfond; 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; Chinese Academy of Sciences; Austrian Science Fund; Generalitat de Catalunya; Agencia Nacional de Promoción Científica y Tecnológica; Nederlandse Organisatie voor Wetenschappelijk Onderzoek; Bundesministerium für Wissenschaft, Forschung und Wirtschaft; 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; Narodowe Centrum Nauki; Javna Agencija za Raziskovalno Dejavnost RS; Ministerstwo Edukacji i Nauki; Ministry of Science and Technology, Taiwan; Ministerio de Ciencia e Innovación; Centre National pour la Recherche Scientifique et Technique; Horizon 2020; British Columbia Knowledge Development Fund; European Regional Development Fund; Defence Science Institute; Council on grants of the President of the Russian Federation; National Research Center "Kurchatov Institute"Resumen
A search optimized for new heavy particles decaying to two b-quarks and produced in association with additional b-quarks is reported. The sensitivity is improved by b-tagging at least one lower-pT jet in addition to the two highest-pT jets. The data used in this search correspond to an integrated luminosity of 103 fb-1 collected with a dedicated trijet trigger during the 2017 and 2018 s=13 TeV proton-proton collision runs with the ATLAS detector at the LHC. The search looks for resonant peaks in the b-tagged dijet invariant mass spectrum over a smoothly falling background. The background is estimated with an innovative data-driven method based on orthonormal functions. The observed b-tagged dijet invariant mass spectrum is compatible with the background-only hypothesis. Upper limits at 95% confidence level on a heavy vector-boson production cross section times branching ratio to a pair of b-quarks are derived.