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Browsing by Author "Di Croce, D."

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    Angular analysis of the decay B⁺ → K*(892)⁺μ⁺ μ⁻ in proton-proton collisions at √s = 8 TeV
    (2021) CMS Collaboration; Buccilli, A.; Charaf, O.; Cooper, S.I.; Di Croce, D.; Gleyzer, S.V.; Henderson, C.; Perez, C.U.; Rumerio, P.; West, C.; University of Alabama Tuscaloosa
    Angular distributions of the decay B\(^{+}\) → K*(892)\(^{+}\) μ\(^{+}\) μ\(^{−}\) are studied using events collected with the CMS detector in \(\sqrt{s}\)=8TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 20.0 fb⁻¹. The forward-backward asymmetry of the muons and the longitudinal polarization of the K*(892)\(^{+}\) meson are determined as a function of the square of the dimuon invariant mass. These are the first results from this exclusive decay mode and are in agreement with a standard model prediction.
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    First measurement of the cross section for top quark pair production with additional charm jets using dileptonic final states in pp collisions at root s=13 TeV
    (Elsevier, 2021) CMS Collaboration; Buccilli, A.; Charaf, O.; Cooper, S.I.; Di Croce, D.; Gleyzer, S.V.; Henderson, C.; Perez, C.U.; Rumerio, P.; West, C.; Yerevan Physics Institute; Belarusian State University; University of Antwerp; Vrije Universiteit Brussel; Universite Libre de Bruxelles; Ghent University; Universite Catholique Louvain; Centro Brasileiro de Pesquisas Fisicas; Universidade do Estado do Rio de Janeiro; Universidade Estadual Paulista; Bulgarian Academy of Sciences; University of Sofia; Beihang University; Tsinghua University; Chinese Academy of Sciences; Institute of High Energy Physics, CAS; Peking University; Sun Yat Sen University; Fudan University; Zhejiang University; Universidad de los Andes (Colombia); Universidad de Antioquia; University of Split; University of Cyprus; Charles University Prague; Escuela Politecnica Nacional Ecuador; Egyptian Academy of Scientific Research & Technology (ASRT); Egyptian Knowledge Bank (EKB); Egyptian Network of High Energy Physics (ENHEP); Fayoum University; National Institute of Chemical Physics & Biophysics (NICPB); University of Helsinki; Helsinki Institute of Physics; Lappeenranta University of Technology; CEA; UDICE-French Research Universities; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute of Nuclear and Particle Physics (IN2P3); Institut Polytechnique de Paris; Universites de Strasbourg Etablissements Associes; Universite de Strasbourg; Universite Claude Bernard Lyon 1; Georgian Technical University; RWTH Aachen University; Helmholtz Association; Deutsches Elektronen-Synchrotron (DESY); University of Hamburg; Karlsruhe Institute of Technology; National Centre of Scientific Research "Demokritos"; National & Kapodistrian University of Athens; National Technical University of Athens; University of Ioannina; Eotvos Lorand University; Eotvos Lorand Research Network; Hungarian Academy of Sciences; Hungarian Wigner Research Centre for Physics; Hungarian Institute for Nuclear Research; University of Debrecen; Eszterhazy Karoly Catholic University; Indian Institute of Science (IISC) - Bangalore; Homi Bhabha National Institute; National Institute of Science Education & Research (NISER); Panjab University; University of Delhi; Saha Institute of Nuclear Physics; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Madras; Bhabha Atomic Research Center (BARC); Tata Institute of Fundamental Research (TIFR); Indian Institute of Science Education & Research (IISER) Pune; Isfahan University of Technology; University College Dublin; Istituto Nazionale di Fisica Nucleare (INFN); Universita degli Studi di Bari Aldo Moro; Politecnico di Bari; University of Bologna; University of Catania; University of Florence; University of Genoa; University of Milano-Bicocca; University of Naples Federico II; University of Basilicata; Guglielmo Marconi University; University of Padua; University of Trento; University of Pavia; University of Perugia; University of Pisa; Scuola Normale Superiore di Pisa; University of Siena; Sapienza University Rome; University of Turin; University of Eastern Piedmont Amedeo Avogadro; University of Trieste; Kyungpook National University; Chonnam National University; Hanyang University; Korea University; Kyung Hee University; Sejong University; Seoul National University (SNU); University of Seoul; Yonsei University; Sungkyunkwan University (SKKU); American University of Middle East; Riga Technical University; Vilnius University; Universiti Malaya; Universidad de Sonora; CINVESTAV - Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional; Universidad Iberoamericana Ciudad de Mexico; Benemerita Universidad Autonoma de Puebla; University of Montenegro; University of Auckland; University of Canterbury; National Centre for Physics - Pakistan; Quaid I Azam University; AGH University of Science & Technology; National Centre for Nuclear Research; University of Warsaw; Laboratorio de Instrumentacao e Fisica Experimental de Particulas; Joint Institute for Nuclear Research - Russia; National Research Centre - Kurchatov Institute; Petersburg Nuclear Physics Institute; Russian Academy of Sciences; Institute for Nuclear Research of the Russian Academy of Sciences; Alikhanov Institute for Theoretical & Experimental Physics; Moscow Institute of Physics & Technology; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Russian Academy of Science Lebedev Physical Institute; Lomonosov Moscow State University; Tomsk Polytechnic University; Tomsk State University; University of Belgrade; Centro de Investigaciones Energeticas, Medioambientales Tecnologicas; Autonomous University of Madrid; University of Oviedo; Consejo Superior de Investigaciones Cientificas (CSIC); Universidad de Cantabria; CSIC - Instituto de Fisica de Cantabria (IFCA); University of Colombo; University Ruhuna; European Organization for Nuclear Research (CERN); Swiss Federal Institutes of Technology Domain; Paul Scherrer Institute; ETH Zurich; University of Zurich; National Central University; National Taiwan University; Chulalongkorn University; Cukurova University; Middle East Technical University; Bogazici University; Istanbul Technical University; Istanbul University; National Academy of Sciences Ukraine; Institute for Scintillation Materials of the National Academy of Sciences of Ukraine; Kharkov Institute of Physics & Technology; University of Bristol; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC); STFC Rutherford Appleton Laboratory; Imperial College London; Brunel University; Baylor University; Catholic University of America; University of Alabama Tuscaloosa; Boston University; Brown University; University of California System; University of California Davis; University of California Los Angeles; University of California Riverside; University of California San Diego; University of California Santa Barbara; California Institute of Technology; Carnegie Mellon University; University of Colorado System; University of Colorado Boulder; Cornell University; United States Department of Energy (DOE); University of Chicago; Fermi National Accelerator Laboratory; State University System of Florida; University of Florida; Florida State University; Florida Institute of Technology; University of Illinois System; University of Illinois Chicago; University of Iowa; Johns Hopkins University; University of Kansas; Kansas State University; Lawrence Livermore National Laboratory; University System of Maryland; University of Maryland College Park; Massachusetts Institute of Technology (MIT); University of Minnesota System; University of Minnesota Twin Cities; University of Mississippi; University of Nebraska System; University of Nebraska Lincoln; State University of New York (SUNY) System; State University of New York (SUNY) Buffalo; Northeastern University; Northwestern University; University of Notre Dame; University System of Ohio; Ohio State University; Princeton University; University of Puerto Rico; University of Puerto Rico Mayaguez; Purdue University System; Purdue University; Purdue University West Lafayette Campus; Rice University; University of Rochester; Rutgers State University New Brunswick; University of Tennessee System; University of Tennessee Knoxville; Texas A&M University System; Texas A&M University College Station; Texas Tech University System; Texas Tech University; Vanderbilt University; University of Virginia; Wayne State University; University of Wisconsin System; University of Wisconsin Madison; Technische Universitat Wien; Arab Academy for Science, Technology & Maritime Transport; Universidade Estadual de Campinas; Universidade Federal do Rio Grande do Sul; Universidade Federal de Mato Grosso do Sul; Nanjing Normal University; University of Chinese Academy of Sciences, CAS; Helwan University; Zewail City of Science & Technology; Ain Shams University; British University in Egypt; Universite de Haute-Alsace (UHA); Erzincan Binali Yildirim University; Brandenburg University of Technology Cottbus; Assiut University; Indian Institute of Technology (IIT) - Bhubaneswar; Institute of Physics Bhubaneswar (IOPB); Shoolini University; University of Hyderabad; Visva Bharati University; Indian Institute of Technology (IIT) - Bombay; Sharif University of Technology; University of Science & Technology of Mazandaran; Italian National Agency New Technical Energy & Sustainable Economics Development; Peter the Great St. Petersburg Polytechnic University; Budker Institute of Nuclear Physics; Eastern University, Sri Lanka; Ecole Polytechnique Federale de Lausanne; Universite de Savoie; Sirnak University; Near East University; Beykent University; Istanbul Aydin University; Mersin University; Piri Reis University; Adiyaman University; Ozyegin University; Izmir Institute of Technology; Necmettin Erbakan University; Bozok University; Marmara University; Kafkas University; Istanbul Bilgi University; Hacettepe University; University of Southampton; Monash University; Karamanoglu Mehmetbey University; Bingol University; Sinop University; Mimar Sinan Guzel Sanatlar University; Erciyes University; Qatar Foundation (QF); Texas A&M University Qatar
    The first measurement of the inclusive cross section for top quark pairs (\(t\stackrel{‾}{t}\)) produced in association with two additional charm jets is presented. The analysis uses the dileptonic final states of \(t\stackrel{‾}{t}\) events produced in proton-proton collisions at a centre-of-mass energy of 13 TeV. The data correspond to an integrated luminosity of \(41.5\phantom{\rule{0.25em}{0ex}}{\text{fb}}^{-1}\), recorded by the CMS experiment at the LHC. A new charm jet identification algorithm provides input to a neural network that is trained to distinguish among \(t\stackrel{‾}{t}\) events with two additional charm (\(t\stackrel{‾}{t}c\stackrel{‾}{c}\)), bottom (\(t\stackrel{‾}{t}b\stackrel{‾}{b}\)), and light-flavour or gluon (\(t\stackrel{‾}{t}\text{LL}\)) jets. By means of a template fitting procedure, the inclusive \(t\stackrel{‾}{t}c\stackrel{‾}{c}\), \(t\stackrel{‾}{t}b\stackrel{‾}{b}\), and \(t\stackrel{‾}{t}\text{LL}\) cross sections are simultaneously measured, together with their ratios to the inclusive \(t\stackrel{‾}{t}\) + two jets cross section. This provides measurements of the \(t\stackrel{‾}{t}c\stackrel{‾}{c}\) and \(t\stackrel{‾}{t}b\stackrel{‾}{b}\) cross sections of \(10.1±1.2\phantom{\rule{0.25em}{0ex}}\text{(stat)}±1.4\phantom{\rule{0.25em}{0ex}}\text{(syst)}\phantom{\rule{0.2em}{0ex}}\text{pb}\) and \(4.54±0.35\phantom{\rule{0.25em}{0ex}}\text{(stat)}±0.56\phantom{\rule{0.25em}{0ex}}\text{(syst)}\phantom{\rule{0.2em}{0ex}}\text{pb}\), respectively, in the full phase space. The results are compared and found to be consistent with predictions from two different matrix element generators with next-to-leading order accuracy in quantum chromodynamics, interfaced with a parton shower simulation.
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    Measurement of single-diffractive dijet production in proton-proton collisions at root s = 8 TeV with the CMS and TOTEM experiments (vol 80, 1164, 2020)
    (Springer, 2021) CMS Collaboration; TOTEM Collaboration; Buccilli, A.; Cooper, S.I.; Di Croce, D.; Henderson, C.; Rumerio, P.; West, C.; Yerevan Physics Institute; Belarusian State University; University of Antwerp; Vrije Universiteit Brussel; Universite Libre de Bruxelles; Ghent University; Universite Catholique Louvain; Centro Brasileiro de Pesquisas Fisicas; Universidade do Estado do Rio de Janeiro; Universidade Estadual Paulista; Universidade Federal do ABC (UFABC); Bulgarian Academy of Sciences; University of Sofia; Beihang University; Tsinghua University; Chinese Academy of Sciences; Institute of High Energy Physics, CAS; Peking University; Universidad de los Andes (Colombia); University of Split; Rudjer Boskovic Institute; University of Cyprus; Charles University Prague; Escuela Politecnica Nacional Ecuador; Egyptian Academy of Scientific Research & Technology (ASRT); Egyptian Knowledge Bank (EKB); Egyptian Network of High Energy Physics (ENHEP); National Institute of Chemical Physics & Biophysics (NICPB); University of Helsinki; Helsinki Institute of Physics; Lappeenranta University of Technology; CEA; UDICE-French Research Universities; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute of Nuclear and Particle Physics (IN2P3); Universites de Strasbourg Etablissements Associes; Universite de Strasbourg; Universite Claude Bernard Lyon 1; Georgian Technical University; Ivane Javakhishvili Tbilisi State University; RWTH Aachen University; Helmholtz Association; Deutsches Elektronen-Synchrotron (DESY); University of Hamburg; Karlsruhe Institute of Technology; National Centre of Scientific Research "Demokritos"; National & Kapodistrian University of Athens; National Technical University of Athens; University of Ioannina; Eotvos Lorand University; Eotvos Lorand Research Network; Hungarian Academy of Sciences; Hungarian Wigner Research Centre for Physics; Hungarian Institute for Nuclear Research; University of Debrecen; Indian Institute of Science (IISC) - Bangalore; Homi Bhabha National Institute; National Institute of Science Education & Research (NISER); Panjab University; University of Delhi; Saha Institute of Nuclear Physics; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Madras; Bhabha Atomic Research Center (BARC); Tata Institute of Fundamental Research (TIFR); Indian Institute of Science Education & Research (IISER) Pune; University College Dublin; Istituto Nazionale di Fisica Nucleare (INFN); Universita degli Studi di Bari Aldo Moro; Politecnico di Bari; University of Bologna; University of Catania; University of Florence; University of Genoa; University of Milano-Bicocca; University of Naples Federico II; University of Basilicata; University of Padua; University of Trento; University of Pavia; University of Perugia; University of Pisa; Scuola Normale Superiore di Pisa; Sapienza University Rome; University of Turin; University of Eastern Piedmont Amedeo Avogadro; University of Trieste; Kyungpook National University; Chonnam National University; Hanyang University; Korea University; Sejong University; Seoul National University (SNU); University of Seoul; Sungkyunkwan University (SKKU); Riga Technical University; Vilnius University; Universiti Malaya; Universidad de Sonora; CINVESTAV - Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional; Instituto Politecnico Nacional - Mexico; Universidad Iberoamericana Ciudad de Mexico; Benemerita Universidad Autonoma de Puebla; Universidad Autonoma de San Luis Potosi; University of Auckland; University of Canterbury; National Centre for Physics - Pakistan; Quaid I Azam University; National Centre for Nuclear Research; University of Warsaw; Laboratorio de Instrumentacao e Fisica Experimental de Particulas; Joint Institute for Nuclear Research - Russia; National Research Centre - Kurchatov Institute; Petersburg Nuclear Physics Institute; Russian Academy of Sciences; Institute for Nuclear Research of the Russian Academy of Sciences; Alikhanov Institute for Theoretical & Experimental Physics; Moscow Institute of Physics & Technology; Russian Academy of Science Lebedev Physical Institute; Lomonosov Moscow State University; Institute of High Energy Physics - IHEP; Tomsk Polytechnic University; University of Belgrade; Centro de Investigaciones Energeticas, Medioambientales Tecnologicas; Autonomous University of Madrid; University of Oviedo; Consejo Superior de Investigaciones Cientificas (CSIC); Universidad de Cantabria; CSIC - Instituto de Fisica de Cantabria (IFCA); University Ruhuna; European Organization for Nuclear Research (CERN); Swiss Federal Institutes of Technology Domain; Paul Scherrer Institute; ETH Zurich; University of Zurich; National Central University; National Taiwan University; Chulalongkorn University; Cukurova University; Middle East Technical University; Bogazici University; Istanbul Technical University; National Academy of Sciences Ukraine; Institute for Scintillation Materials of the National Academy of Sciences of Ukraine; Kharkov Institute of Physics & Technology; University of Bristol; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC); STFC Rutherford Appleton Laboratory; Imperial College London; Brunel University; Baylor University; Catholic University of America; University of Alabama Tuscaloosa; Boston University; Brown University; University of California System; University of California Davis; University of California Los Angeles; University of California Riverside; University of California San Diego; University of California Santa Barbara; California Institute of Technology; Carnegie Mellon University; University of Colorado System; University of Colorado Boulder; Cornell University; United States Department of Energy (DOE); University of Chicago; Fermi National Accelerator Laboratory; State University System of Florida; University of Florida; Florida International University; Florida State University; Florida Institute of Technology; University of Illinois System; University of Illinois Chicago; University of Iowa; Johns Hopkins University; University of Kansas; Kansas State University; Lawrence Livermore National Laboratory; University System of Maryland; University of Maryland College Park; Massachusetts Institute of Technology (MIT); University of Minnesota System; University of Minnesota Twin Cities; University of Mississippi; University of Nebraska System; University of Nebraska Lincoln; State University of New York (SUNY) System; State University of New York (SUNY) Buffalo; Northeastern University; Northwestern University; University of Notre Dame; University System of Ohio; Ohio State University; Princeton University; University of Puerto Rico; University of Puerto Rico Mayaguez; Purdue University System; Purdue University; Purdue University West Lafayette Campus; Rice University; University of Rochester; Rockefeller University; Rutgers State University New Brunswick; University of Tennessee System; University of Tennessee Knoxville; Texas A&M University System; Texas A&M University College Station; Texas Tech University System; Texas Tech University; Vanderbilt University; University of Virginia; Wayne State University; University of Wisconsin System; University of Wisconsin Madison; Technische Universitat Wien; Universidade Estadual de Campinas; Universidade Federal do Rio Grande do Sul; University of Chinese Academy of Sciences, CAS; Cairo University; Fayoum University; British University in Egypt; Ain Shams University; King Abdulaziz University; Universite de Haute-Alsace (UHA); Brandenburg University of Technology Cottbus; Indian Institute of Technology (IIT) - Bhubaneswar; Institute of Physics Bhubaneswar (IOPB); Shoolini University; Visva Bharati University; Isfahan University of Technology; Islamic Azad University; Italian National Agency New Technical Energy & Sustainable Economics Development; University of Siena; Kyung Hee University; International Islamic University Malaysia; Agensi Nuklear Malaysia; Warsaw University of Technology; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Peter the Great St. Petersburg Polytechnic University; Budker Institute of Nuclear Physics; Adiyaman University; Istanbul Aydin University; Mersin University; Piri Reis University; Ozyegin University; Izmir Institute of Technology; Marmara University; Kafkas University; Istanbul University; Istanbul Bilgi University; Hacettepe University; University of Southampton; Monash University; Karamanoglu Mehmetbey University; Beykent University; Bingol University; Sinop University; Mimar Sinan Guzel Sanatlar University; Qatar Foundation (QF); Texas A&M University Qatar; University of Hyderabad; University of West Bohemia Pilsen; Czech Academy of Sciences; Institute of Physics of the Czech Academy of Sciences; Czech Technical University Prague; AGH University of Science & Technology; Tomsk State University; Case Western Reserve University; St. Petersburg Scientific Centre of the Russian Academy of Sciences; Ioffe Physical Technical Institute; Stanford University; SLAC National Accelerator Laboratory
    A Correction to this paper has been published: https://doi.org/10.1140/epjc/s10052-020-08562-y
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    Measurement of the W gamma Production Cross Section in Proton-Proton Collisions at root s=13 TeV and Constraints on Effective Field Theory Coefficients
    (American Physical Society, 2021) CMS Collaboration; Buccilli, A.; Charaf, O.; Cooper, S.I.; Di Croce, D.; Gleyzer, S.V.; Henderson, C.; Perez, C.U.; Rumerio, P.; West, C.; Yerevan Physics Institute; Belarusian State University; University of Antwerp; Vrije Universiteit Brussel; Universite Libre de Bruxelles; Ghent University; Universite Catholique Louvain; Centro Brasileiro de Pesquisas Fisicas; Universidade do Estado do Rio de Janeiro; Universidade Estadual Paulista; Universidade Federal do ABC (UFABC); Bulgarian Academy of Sciences; University of Sofia; Beihang University; Tsinghua University; Chinese Academy of Sciences; Institute of High Energy Physics, CAS; Peking University; Sun Yat Sen University; Fudan University; Zhejiang University; Universidad de los Andes (Colombia); Universidad de Antioquia; University of Split; Rudjer Boskovic Institute; University of Cyprus; Charles University Prague; Escuela Politecnica Nacional Ecuador; Egyptian Academy of Scientific Research & Technology (ASRT); Egyptian Knowledge Bank (EKB); Egyptian Network of High Energy Physics (ENHEP); Fayoum University; National Institute of Chemical Physics & Biophysics (NICPB); University of Helsinki; Helsinki Institute of Physics; Lappeenranta University of Technology; CEA; UDICE-French Research Universities; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute of Nuclear and Particle Physics (IN2P3); Institut Polytechnique de Paris; Universites de Strasbourg Etablissements Associes; Universite de Strasbourg; Universite Claude Bernard Lyon 1; Georgian Technical University; RWTH Aachen University; Helmholtz Association; Deutsches Elektronen-Synchrotron (DESY); University of Hamburg; Karlsruhe Institute of Technology; National Centre of Scientific Research "Demokritos"; National & Kapodistrian University of Athens; National Technical University of Athens; University of Ioannina; Eotvos Lorand University; Eotvos Lorand Research Network; Hungarian Academy of Sciences; Hungarian Wigner Research Centre for Physics; Hungarian Institute for Nuclear Research; University of Debrecen; Eszterhazy Karoly Catholic University; Indian Institute of Science (IISC) - Bangalore; Homi Bhabha National Institute; National Institute of Science Education & Research (NISER); Panjab University; University of Delhi; Saha Institute of Nuclear Physics; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Madras; Bhabha Atomic Research Center (BARC); Tata Institute of Fundamental Research (TIFR); Indian Institute of Science Education & Research (IISER) Pune; Isfahan University of Technology; University College Dublin; Istituto Nazionale di Fisica Nucleare (INFN); Universita degli Studi di Bari Aldo Moro; Politecnico di Bari; University of Bologna; University of Catania; University of Florence; University of Genoa; University of Milano-Bicocca; University of Naples Federico II; University of Basilicata; Guglielmo Marconi University; University of Padua; University of Trento; University of Pavia; University of Perugia; University of Pisa; Scuola Normale Superiore di Pisa; University of Siena; Sapienza University Rome; University of Turin; University of Eastern Piedmont Amedeo Avogadro; University of Trieste; Kyungpook National University; Chonnam National University; Hanyang University; Korea University; Kyung Hee University; Sejong University; Seoul National University (SNU); University of Seoul; Yonsei University; Sungkyunkwan University (SKKU); American University of Middle East; Riga Technical University; Vilnius University; Universiti Malaya; Universidad de Sonora; CINVESTAV - Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional; Instituto Politecnico Nacional - Mexico; Universidad Iberoamericana Ciudad de Mexico; Benemerita Universidad Autonoma de Puebla; University of Montenegro; University of Auckland; University of Canterbury; National Centre for Physics - Pakistan; Quaid I Azam University; AGH University of Science & Technology; National Centre for Nuclear Research; University of Warsaw; Laboratorio de Instrumentacao e Fisica Experimental de Particulas; Joint Institute for Nuclear Research - Russia; National Research Centre - Kurchatov Institute; Petersburg Nuclear Physics Institute; Russian Academy of Sciences; Institute for Nuclear Research of the Russian Academy of Sciences; Alikhanov Institute for Theoretical & Experimental Physics; Moscow Institute of Physics & Technology; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Russian Academy of Science Lebedev Physical Institute; Lomonosov Moscow State University; Institute of High Energy Physics - IHEP; Tomsk Polytechnic University; Tomsk State University; University of Belgrade; Centro de Investigaciones Energeticas, Medioambientales Tecnologicas; Autonomous University of Madrid; University of Oviedo; Consejo Superior de Investigaciones Cientificas (CSIC); Universidad de Cantabria; CSIC - Instituto de Fisica de Cantabria (IFCA); University of Colombo; University Ruhuna; European Organization for Nuclear Research (CERN); Swiss Federal Institutes of Technology Domain; Paul Scherrer Institute; ETH Zurich; University of Zurich; National Central University; National Taiwan University; Chulalongkorn University; Cukurova University; Middle East Technical University; Bogazici University; Istanbul Technical University; Istanbul University; National Academy of Sciences Ukraine; Institute for Scintillation Materials of the National Academy of Sciences of Ukraine; Kharkov Institute of Physics & Technology; University of Bristol; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC); STFC Rutherford Appleton Laboratory; Imperial College London; Brunel University; Baylor University; Catholic University of America; University of Alabama Tuscaloosa; Boston University; Brown University; University of California System; University of California Davis; University of California Los Angeles; University of California Riverside; University of California San Diego; University of California Santa Barbara; California Institute of Technology; Carnegie Mellon University; University of Colorado System; University of Colorado Boulder; Cornell University; United States Department of Energy (DOE); University of Chicago; Fermi National Accelerator Laboratory; State University System of Florida; University of Florida; Florida State University; Florida Institute of Technology; University of Illinois System; University of Illinois Chicago; University of Iowa; Johns Hopkins University; University of Kansas; Kansas State University; Lawrence Livermore National Laboratory; University System of Maryland; University of Maryland College Park; Massachusetts Institute of Technology (MIT); University of Minnesota System; University of Minnesota Twin Cities; University of Mississippi; University of Nebraska System; University of Nebraska Lincoln; State University of New York (SUNY) System; State University of New York (SUNY) Buffalo; Northeastern University; Northwestern University; University of Notre Dame; University System of Ohio; Ohio State University; Princeton University; University of Puerto Rico; University of Puerto Rico Mayaguez; Purdue University System; Purdue University; Purdue University West Lafayette Campus; Rice University; University of Rochester; Rutgers State University New Brunswick; University of Tennessee System; University of Tennessee Knoxville; Texas A&M University System; Texas A&M University College Station; Texas Tech University System; Texas Tech University; Vanderbilt University; University of Virginia; Wayne State University; University of Wisconsin System; University of Wisconsin Madison; Technische Universitat Wien; Arab Academy for Science, Technology & Maritime Transport; Universidade Estadual de Campinas; University of Chinese Academy of Sciences, CAS; Universidade Federal de Mato Grosso do Sul; Nanjing Normal University; Ain Shams University; Zewail City of Science & Technology; British University in Egypt; Universite de Haute-Alsace (UHA); Erzincan Binali Yildirim University; Brandenburg University of Technology Cottbus; Assiut University; Institute of Physics Bhubaneswar (IOPB); Indian Institute of Technology (IIT) - Bhubaneswar; Shoolini University; University of Hyderabad; Visva Bharati University; Indian Institute of Technology (IIT) - Bombay; Sharif University of Technology; University of Science & Technology of Mazandaran; Italian National Agency New Technical Energy & Sustainable Economics Development; Peter the Great St. Petersburg Polytechnic University; Budker Institute of Nuclear Physics; Eastern University, Sri Lanka; Ecole Polytechnique Federale de Lausanne; Gaziosmanpasa University; Sirnak University; Istanbul University - Cerrahpasa; Mersin University; Piri Reis University; Adiyaman University; Tarsus University; Ozyegin University; Izmir Institute of Technology; Necmettin Erbakan University; Bozok University; Marmara University; Kafkas University; Istanbul Bilgi University; Near East University; Hacettepe University; University of Southampton; Durham University; Monash University; Bingol University; Sinop University; Mimar Sinan Guzel Sanatlar University; Erciyes University; Qatar Foundation (QF); Texas A&M University Qatar
    A fiducial cross section for \(W\gamma \) production in proton-proton collisions is measured at a center-of-mass energy of 13 TeV in \(137\text{}\text{}{\mathrm{fb}}^{-1}\) of data collected using the CMS detector at the LHC. The \(W\to e\nu \) and \(\mu \nu \) decay modes are used in a maximum-likelihood fit to the lepton-photon invariant mass distribution to extract the combined cross section. The measured cross section is compared with theoretical expectations at next-to-leading order in quantum chromodynamics. In addition, 95% confidence level intervals are reported for anomalous triple-gauge couplings within the framework of effective field theory.
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    Measurement of the Z boson differential production cross section using its invisible decay mode (Z → vv̅) in proton-proton collisions at √s = 13 TeV
    (2021) CMS Collaboration; Buccilli, A.; Charaf, O.; Cooper, S.I.; Di Croce, D.; Gleyzer, S.V.; Henderson, C.; Perez, C.U.; Rumerio, P.; West, C.; University of Alabama Tuscaloosa
    Measurements of the total and differential fiducial cross sections for the Z boson decaying into two neutrinos are presented at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV. The data were collected by the CMS detector in 2016 and correspond to an integrated luminosity of 35.9 fb⁻¹. In these measurements, events are selected containing an imbalance in transverse momentum and one or more energetic jets. The fiducial differential cross section is measured as a function of the Z boson transverse momentum. The results are combined with a previous measurement of charged-lepton decays of the Z boson. The measured total fiducial cross section for events with Z boson transverse momentum greater than 200 GeV is \({3000}_{-170}^{+180}\) fb.
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    Measurements of Higgs boson production cross sections and couplings in the diphoton decay channel at √s = 13 TeV
    (2021) CMS Collaboration; Buccilli, A.; Cooper, S.I.; Di Croce, D.; Gleyzer, S.V.; Henderson, C.; Perez, C.U.; Rumerio, P.; West, C.; University of Alabama Tuscaloosa
    Measurements of Higgs boson production cross sections and couplings in events where the Higgs boson decays into a pair of photons are reported. Events are selected from a sample of proton-proton collisions at \(\sqrt{s}\) = 13 TeV collected by the CMS detector at the LHC from 2016 to 2018, corresponding to an integrated luminosity of 137 fb⁻¹. Analysis categories enriched in Higgs boson events produced via gluon fusion, vector boson fusion, vector boson associated production, and production associated with top quarks are constructed. The total Higgs boson signal strength, relative to the standard model (SM) prediction, is measured to be 1.12±0.09. Other properties of the Higgs boson are measured, including SM signal strength modifiers, production cross sections, and its couplings to other particles. These include the most precise measurements of gluon fusion and vector boson fusion Higgs boson production in several different kinematic regions, the first measurement of Higgs boson production in association with a top quark pair in five regions of the Higgs boson transverse momentum, and an upper limit on the rate of Higgs boson production in association with a single top quark. All results are found to be in agreement with the SM expectations.
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    Measurements of production cross sections of the Higgs boson in the four-lepton final state in proton-proton collisions at root s=13 TeV
    (Springer, 2021) CMS Collaboration; Buccilli, A.; Charaf, O.; Cooper, S.I.; Di Croce, D.; Gleyzer, S.V.; Henderson, C.; Perez, C.U.; Rumerio, P.; West, C.; Yerevan Physics Institute; Belarusian State University; University of Antwerp; Vrije Universiteit Brussel; Universite Libre de Bruxelles; Ghent University; Universite Catholique Louvain; Centro Brasileiro de Pesquisas Fisicas; Universidade do Estado do Rio de Janeiro; Universidade Estadual Paulista; Universidade Federal do ABC (UFABC); Bulgarian Academy of Sciences; University of Sofia; Beihang University; Tsinghua University; Chinese Academy of Sciences; Institute of High Energy Physics, CAS; Peking University; Sun Yat Sen University; Fudan University; Zhejiang University; Universidad de los Andes (Colombia); Universidad de Antioquia; University of Split; Rudjer Boskovic Institute; University of Cyprus; Charles University Prague; Escuela Politecnica Nacional Ecuador; Egyptian Academy of Scientific Research & Technology (ASRT); Egyptian Knowledge Bank (EKB); Egyptian Network of High Energy Physics (ENHEP); Fayoum University; National Institute of Chemical Physics & Biophysics (NICPB); University of Helsinki; Helsinki Institute of Physics; Lappeenranta University of Technology; CEA; UDICE-French Research Universities; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute of Nuclear and Particle Physics (IN2P3); Institut Polytechnique de Paris; Universites de Strasbourg Etablissements Associes; Universite de Strasbourg; Georgian Technical University; RWTH Aachen University; Helmholtz Association; Deutsches Elektronen-Synchrotron (DESY); University of Hamburg; Karlsruhe Institute of Technology; National Centre of Scientific Research "Demokritos"; National & Kapodistrian University of Athens; National Technical University of Athens; University of Ioannina; Eotvos Lorand University; Eotvos Lorand Research Network; Hungarian Academy of Sciences; Hungarian Wigner Research Centre for Physics; Hungarian Institute for Nuclear Research; University of Debrecen; Eszterhazy Karoly Catholic University; Indian Institute of Science (IISC) - Bangalore; Homi Bhabha National Institute; National Institute of Science Education & Research (NISER); Panjab University; University of Delhi; Saha Institute of Nuclear Physics; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Madras; Bhabha Atomic Research Center (BARC); Tata Institute of Fundamental Research (TIFR); Indian Institute of Science Education & Research (IISER) Pune; Isfahan University of Technology; University College Dublin; Istituto Nazionale di Fisica Nucleare (INFN); Universita degli Studi di Bari Aldo Moro; Politecnico di Bari; University of Bologna; University of Catania; University of Florence; University of Genoa; University of Milano-Bicocca; University of Naples Federico II; University of Basilicata; Guglielmo Marconi University; University of Padua; University of Trento; University of Pavia; University of Perugia; University of Pisa; Scuola Normale Superiore di Pisa; University of Siena; Sapienza University Rome; University of Turin; University of Eastern Piedmont Amedeo Avogadro; University of Trieste; Kyungpook National University; Chonnam National University; Hanyang University; Korea University; Kyung Hee University; Sejong University; Seoul National University (SNU); University of Seoul; Yonsei University; Sungkyunkwan University (SKKU); American University of Middle East; Riga Technical University; Vilnius University; Universiti Malaya; Universidad de Sonora; CINVESTAV - Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional; Instituto Politecnico Nacional - Mexico; Universidad Iberoamericana Ciudad de Mexico; Benemerita Universidad Autonoma de Puebla; University of Montenegro; University of Auckland; University of Canterbury; National Centre for Physics - Pakistan; Quaid I Azam University; AGH University of Science & Technology; National Centre for Nuclear Research; University of Warsaw; Laboratorio de Instrumentacao e Fisica Experimental de Particulas; Joint Institute for Nuclear Research - Russia; National Research Centre - Kurchatov Institute; Petersburg Nuclear Physics Institute; Russian Academy of Sciences; Institute for Nuclear Research of the Russian Academy of Sciences; Alikhanov Institute for Theoretical & Experimental Physics; Moscow Institute of Physics & Technology; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Russian Academy of Science Lebedev Physical Institute; Lomonosov Moscow State University; Institute of High Energy Physics - IHEP; Tomsk Polytechnic University; Tomsk State University; University of Belgrade; Centro de Investigaciones Energeticas, Medioambientales Tecnologicas; Autonomous University of Madrid; University of Oviedo; Consejo Superior de Investigaciones Cientificas (CSIC); Universidad de Cantabria; CSIC - Instituto de Fisica de Cantabria (IFCA); University of Colombo; University Ruhuna; European Organization for Nuclear Research (CERN); Swiss Federal Institutes of Technology Domain; Paul Scherrer Institute; ETH Zurich; University of Zurich; National Central University; National Taiwan University; Chulalongkorn University; Cukurova University; Middle East Technical University; Bogazici University; Istanbul Technical University; Istanbul University; National Academy of Sciences Ukraine; Institute for Scintillation Materials of the National Academy of Sciences of Ukraine; Kharkov Institute of Physics & Technology; University of Bristol; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC); STFC Rutherford Appleton Laboratory; Imperial College London; Brunel University; Baylor University; Catholic University of America; University of Alabama Tuscaloosa; Boston University; Brown University; University of California System; University of California Davis; University of California Los Angeles; University of California Riverside; University of California San Diego; University of California Santa Barbara; California Institute of Technology; Carnegie Mellon University; University of Colorado System; University of Colorado Boulder; Cornell University; United States Department of Energy (DOE); University of Chicago; Fermi National Accelerator Laboratory; State University System of Florida; University of Florida; Florida State University; Florida Institute of Technology; University of Illinois System; University of Illinois Chicago; University of Iowa; Johns Hopkins University; University of Kansas; Kansas State University; Lawrence Livermore National Laboratory; University System of Maryland; University of Maryland College Park; Massachusetts Institute of Technology (MIT); University of Minnesota System; University of Minnesota Twin Cities; University of Mississippi; University of Nebraska System; University of Nebraska Lincoln; State University of New York (SUNY) System; State University of New York (SUNY) Buffalo; Northeastern University; Northwestern University; University of Notre Dame; University System of Ohio; Ohio State University; Princeton University; University of Puerto Rico; University of Puerto Rico Mayaguez; Purdue University System; Purdue University; Purdue University West Lafayette Campus; Rice University; University of Rochester; Rutgers State University New Brunswick; University of Tennessee System; University of Tennessee Knoxville; Texas A&M University System; Texas A&M University College Station; Texas Tech University System; Texas Tech University; Vanderbilt University; University of Virginia; Wayne State University; University of Wisconsin System; University of Wisconsin Madison; Technische Universitat Wien; Arab Academy for Science, Technology & Maritime Transport; Universidade Estadual de Campinas; Universidade Federal do Rio Grande do Sul; Universidade Federal de Mato Grosso do Sul; University of Chinese Academy of Sciences, CAS; Ain Shams University; Zewail City of Science & Technology; British University in Egypt; Universite de Haute-Alsace (UHA); Erzincan Binali Yildirim University; Brandenburg University of Technology Cottbus; Assiut University; Indian Institute of Technology (IIT) - Bhubaneswar; Institute of Physics Bhubaneswar (IOPB); Shoolini University; University of Hyderabad; Visva Bharati University; Indian Institute of Technology (IIT) - Bombay; University of Science & Technology of Mazandaran; Italian National Agency New Technical Energy & Sustainable Economics Development; Peter the Great St. Petersburg Polytechnic University; Budker Institute of Nuclear Physics; Eastern University, Sri Lanka; Sirnak University; Near East University; Istanbul University - Cerrahpasa; Mersin University; Piri Reis University; Adiyaman University; Ozyegin University; Izmir Institute of Technology; Necmettin Erbakan University; Bozok University; Marmara University; Kafkas University; Istanbul Bilgi University; Hacettepe University; University of Southampton; Monash University; Karamanoglu Mehmetbey University; Bingol University; Sinop University; Mimar Sinan Guzel Sanatlar University; Erciyes University; Qatar Foundation (QF); Texas A&M University Qatar
    Production cross sections of the Higgs boson are measured in the \(H\to ZZ\to 4\ell \) ( \(\ell =e,{\mu }_{}^{}\) ) decay channel. A data sample of proton–proton collisions at a center-of-mass energy of 13 \(\phantom{\rule{0.166667em}{0ex}}\text{TeV}\), collected by the CMS detector at the LHC and corresponding to an integrated luminosity of 137 \(\phantom{\rule{0.166667em}{0ex}}{\text{fb}}^{-1}\) is used. The signal strength modifier \(\mu \), defined as the ratio of the Higgs boson production rate in the \(4\ell \) channel to the standard model (SM) expectation, is measured to be \(\mu =0.94±0.07\phantom{\rule{0.166667em}{0ex}}{\text{(stat)}}_{-0.08}^{+0.09}\phantom{\rule{0.166667em}{0ex}}\text{(syst)}\) at a fixed value of \({m}_{H}=125.38\phantom{\rule{0.166667em}{0ex}}\text{GeV}\). The signal strength modifiers for the individual Higgs boson production modes are also reported. The inclusive fiducial cross section for the \(H\to 4\ell \) process is measured to be \(2.{84}_{-0.22}^{+0.23}\phantom{\rule{0.166667em}{0ex}}{\text{(stat)}}_{-0.21}^{+0.26}\phantom{\rule{0.166667em}{0ex}}\text{(syst)}\phantom{\rule{0.166667em}{0ex}}\text{fb}\), which is compatible with the SM prediction of \(2.84±0.15\phantom{\rule{0.166667em}{0ex}}\text{fb}\) for the same fiducial region. Differential cross sections as a function of the transverse momentum and rapidity of the Higgs boson, the number of associated jets, and the transverse momentum of the leading associated jet are measured. A new set of cross section measurements in mutually exclusive categories targeted to identify production mechanisms and kinematical features of the events is presented. The results are in agreement with the SM predictions.
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    Observation of a New Excited Beauty Strange Baryon Decaying to Xi(-)(b)pi(+)pi(-)
    (American Physical Society, 2021) CMS Collaboration; Buccilli, A.; Charaf, O.; Cooper, S.I.; Di Croce, D.; Gleyzer, S.V.; Henderson, C.; Perez, C.U.; Rumerio, P.; West, C.; Yerevan Physics Institute; Belarusian State University; University of Antwerp; Vrije Universiteit Brussel; Universite Libre de Bruxelles; Ghent University; Universite Catholique Louvain; Centro Brasileiro de Pesquisas Fisicas; Universidade do Estado do Rio de Janeiro; Universidade Estadual Paulista; Universidade Federal do ABC (UFABC); Bulgarian Academy of Sciences; University of Sofia; Beihang University; Tsinghua University; Chinese Academy of Sciences; Institute of High Energy Physics, CAS; Peking University; Sun Yat Sen University; Fudan University; Zhejiang University; Universidad de los Andes (Colombia); Universidad de Antioquia; University of Split; Rudjer Boskovic Institute; University of Cyprus; Charles University Prague; Escuela Politecnica Nacional Ecuador; Egyptian Academy of Scientific Research & Technology (ASRT); Egyptian Knowledge Bank (EKB); Egyptian Network of High Energy Physics (ENHEP); Fayoum University; National Institute of Chemical Physics & Biophysics (NICPB); University of Helsinki; Helsinki Institute of Physics; Lappeenranta University of Technology; CEA; UDICE-French Research Universities; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute of Nuclear and Particle Physics (IN2P3); Institut Polytechnique de Paris; Universites de Strasbourg Etablissements Associes; Universite de Strasbourg; Universite Claude Bernard Lyon 1; Georgian Technical University; RWTH Aachen University; Helmholtz Association; Deutsches Elektronen-Synchrotron (DESY); University of Hamburg; Karlsruhe Institute of Technology; National Centre of Scientific Research "Demokritos"; National & Kapodistrian University of Athens; National Technical University of Athens; University of Ioannina; Eotvos Lorand University; Eotvos Lorand Research Network; Hungarian Academy of Sciences; Hungarian Wigner Research Centre for Physics; Hungarian Institute for Nuclear Research; University of Debrecen; Eszterhazy Karoly Catholic University; Indian Institute of Science (IISC) - Bangalore; Homi Bhabha National Institute; National Institute of Science Education & Research (NISER); Panjab University; University of Delhi; Saha Institute of Nuclear Physics; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Madras; Bhabha Atomic Research Center (BARC); Tata Institute of Fundamental Research (TIFR); Indian Institute of Science Education & Research (IISER) Pune; Isfahan University of Technology; University College Dublin; Istituto Nazionale di Fisica Nucleare (INFN); Universita degli Studi di Bari Aldo Moro; Politecnico di Bari; University of Bologna; University of Catania; University of Florence; University of Genoa; University of Milano-Bicocca; University of Naples Federico II; University of Basilicata; Guglielmo Marconi University; University of Padua; University of Trento; University of Pavia; University of Perugia; University of Pisa; Scuola Normale Superiore di Pisa; University of Siena; Sapienza University Rome; University of Turin; University of Eastern Piedmont Amedeo Avogadro; University of Trieste; Kyungpook National University; Chonnam National University; Hanyang University; Korea University; Kyung Hee University; Sejong University; Seoul National University (SNU); University of Seoul; Yonsei University; Sungkyunkwan University (SKKU); American University of Middle East; Riga Technical University; Vilnius University; Universiti Malaya; Universidad de Sonora; CINVESTAV - Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional; Instituto Politecnico Nacional - Mexico; Universidad Iberoamericana Ciudad de Mexico; Benemerita Universidad Autonoma de Puebla; University of Montenegro; University of Auckland; University of Canterbury; National Centre for Physics - Pakistan; Quaid I Azam University; AGH University of Science & Technology; National Centre for Nuclear Research; University of Warsaw; Laboratorio de Instrumentacao e Fisica Experimental de Particulas; Joint Institute for Nuclear Research - Russia; National Research Centre - Kurchatov Institute; Petersburg Nuclear Physics Institute; Russian Academy of Sciences; Institute for Nuclear Research of the Russian Academy of Sciences; Alikhanov Institute for Theoretical & Experimental Physics; Moscow Institute of Physics & Technology; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Russian Academy of Science Lebedev Physical Institute; Lomonosov Moscow State University; Institute of High Energy Physics - IHEP; Tomsk Polytechnic University; Tomsk State University; University of Belgrade; Centro de Investigaciones Energeticas, Medioambientales Tecnologicas; Autonomous University of Madrid; University of Oviedo; Consejo Superior de Investigaciones Cientificas (CSIC); Universidad de Cantabria; CSIC - Instituto de Fisica de Cantabria (IFCA); University of Colombo; University Ruhuna; European Organization for Nuclear Research (CERN); Swiss Federal Institutes of Technology Domain; Paul Scherrer Institute; ETH Zurich; University of Zurich; National Central University; National Taiwan University; Chulalongkorn University; Cukurova University; Middle East Technical University; Bogazici University; Istanbul Technical University; Istanbul University; National Academy of Sciences Ukraine; Institute for Scintillation Materials of the National Academy of Sciences of Ukraine; Kharkov Institute of Physics & Technology; University of Bristol; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC); STFC Rutherford Appleton Laboratory; Imperial College London; Brunel University; Baylor University; Catholic University of America; University of Alabama Tuscaloosa; Boston University; Brown University; University of California System; University of California Davis; University of California Los Angeles; University of California Riverside; University of California San Diego; University of California Santa Barbara; California Institute of Technology; Carnegie Mellon University; University of Colorado System; University of Colorado Boulder; Cornell University; United States Department of Energy (DOE); University of Chicago; Fermi National Accelerator Laboratory; State University System of Florida; University of Florida; Florida State University; Florida Institute of Technology; University of Illinois System; University of Illinois Chicago; University of Iowa; Johns Hopkins University; University of Kansas; Kansas State University; Lawrence Livermore National Laboratory; University System of Maryland; University of Maryland College Park; Massachusetts Institute of Technology (MIT); University of Minnesota System; University of Minnesota Twin Cities; University of Mississippi; University of Nebraska System; University of Nebraska Lincoln; State University of New York (SUNY) System; State University of New York (SUNY) Buffalo; Northeastern University; Northwestern University; University of Notre Dame; University System of Ohio; Ohio State University; Princeton University; University of Puerto Rico; University of Puerto Rico Mayaguez; Purdue University System; Purdue University; Purdue University West Lafayette Campus; Rice University; University of Rochester; Rutgers State University New Brunswick; University of Tennessee System; University of Tennessee Knoxville; Texas A&M University System; Texas A&M University College Station; Texas Tech University System; Texas Tech University; Vanderbilt University; University of Virginia; Wayne State University; University of Wisconsin System; University of Wisconsin Madison; Technische Universitat Wien; Arab Academy for Science, Technology & Maritime Transport; Universidade Estadual de Campinas; University of Chinese Academy of Sciences, CAS; Universidade Federal de Mato Grosso do Sul; Nanjing Normal University; Ain Shams University; Zewail City of Science & Technology; British University in Egypt; Universite de Haute-Alsace (UHA); Ivane Javakhishvili Tbilisi State University; Erzincan Binali Yildirim University; Brandenburg University of Technology Cottbus; Assiut University; Indian Institute of Technology (IIT) - Bhubaneswar; Institute of Physics Bhubaneswar (IOPB); Shoolini University; University of Hyderabad; Visva Bharati University; Indian Institute of Technology (IIT) - Bombay; Sharif University of Technology; University of Science & Technology of Mazandaran; Italian National Agency New Technical Energy & Sustainable Economics Development; Peter the Great St. Petersburg Polytechnic University; Budker Institute of Nuclear Physics; Eastern University, Sri Lanka; Ecole Polytechnique Federale de Lausanne; Sirnak University; Near East University; Konya Technical University; Istanbul University - Cerrahpasa; Mersin University; Piri Reis University; Adiyaman University; Ozyegin University; Izmir Institute of Technology; Necmettin Erbakan University; Bozok University; Marmara University; Kafkas University; Istanbul Bilgi University; Hacettepe University; University of Southampton; Monash University; Bingol University; Sinop University; Mimar Sinan Guzel Sanatlar University; Erciyes University; Qatar Foundation (QF); Texas A&M University Qatar
    The \({\Xi }_{b}^{-}{\pi }^{+}{\pi }^{-}\) invariant mass spectrum is investigated with an event sample of proton-proton collisions at \(\sqrt{s}=13\text{}\text{}\mathrm{TeV}\), collected by the CMS experiment at the LHC in 2016–2018 and corresponding to an integrated luminosity of \(140\text{}\text{}{\mathrm{fb}}^{-1}\). The ground state \({\Xi }_{b}^{-}\) is reconstructed via its decays to \({J/\psi \Xi }^{-}\) and \(J/\psi \Lambda {K}^{-}\). A narrow resonance, labeled \({\Xi }_{b}\left(6100\right)^{-}\), is observed at a \({\Xi }_{b}^{-}{\pi }^{+}{\pi }^{-}\) invariant mass of \(6100.3±0.2\left(\mathrm{stat}\right)±0.1\left(\mathrm{syst}\right)±0.6\left({\Xi }_{b}^{-}\right)\text{}\text{}\mathrm{MeV}\), where the last uncertainty reflects the precision of the \({\Xi }_{b}^{-}\) baryon mass. The upper limit on the \({\Xi }_{b}\left(6100\right)^{-}\)) natural width is determined to be \(1.9\text{}\text{}\mathrm{MeV}\) at 95% confidence level. The low \({\Xi }_{b}\left(6100\right)^{-}\) signal yield observed in data does not allow a measurement of the quantum numbers of the new state. However, following analogies with the established excited \({\Xi }_{c}\) baryon states, the new \({\Xi }_{b}\left(6100\right)^{-}\) resonance and its decay sequence are consistent with the orbitally excited \({\Xi }_{b}^{-}\) baryon, with spin and parity quantum numbers \({J}^{P}=3/{2}^{-}\).
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    Search for new physics in top quark production with additional leptons in proton-proton collisions at √s = 13 TeV using effective field theory
    (2021) CMS Collaboration; Buccilli, A.; Charaf, O.; Cooper, S.I.; Di Croce, D.; Gleyzer, S.V.; Henderson, C.; Perez, C.U.; Rumerio, P.; West, C.; University of Alabama Tuscaloosa
    Events containing one or more top quarks produced with additional prompt leptons are used to search for new physics within the framework of an effective field theory (EFT). The data correspond to an integrated luminosity of 41.5 fb⁻¹ of proton-proton collisions at a center-of-mass energy of 13 TeV at the LHC, collected by the CMS experiment in 2017. The selected events are required to have either two leptons with the same charge or more than two leptons; jets, including identified bottom quark jets, are also required, and the selected events are divided into categories based on the multiplicities of these objects. Sixteen dimension-six operators that can affect processes involving top quarks produced with additional charged leptons are considered in this analysis. Constructed to target EFT effects directly, the analysis applies a novel approach in which the observed yields are parameterized in terms of the Wilson coefficients (WCs) of the EFT operators. A simultaneous fit of the 16 WCs to the data is performed and two standard deviation confidence intervals for the WCs are extracted; the standard model expectations for the WC values are within these intervals for all of the WCs probed.
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    Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at √s = 13 TeV
    (2021) CMS Collaboration; Buccilli, A.; Charaf, O.; Cooper, S.I.; Di Croce, D.; Gleyzer, S.V.; Henderson, C.; Perez, C.U.; Rumerio, P.; West, C.; University of Alabama Tuscaloosa
    A search for nonresonant production of Higgs boson pairs via gluon-gluon and vector boson fusion processes in final states with two bottom quarks and two photons is presented. The search uses data from proton-proton collisions at a center-of-mass energy of \(\sqrt{s}\) = 13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb⁻¹. No significant deviation from the background-only hypothesis is observed. An upper limit at 95% confidence level is set on the product of the Higgs boson pair production cross section and branching fraction into \(\mathrm{\gamma \gamma }b\overline{b}\). The observed (expected) upper limit is determined to be 0.67 (0.45) fb, which corresponds to 7.7 (5.2) times the standard model prediction. This search has the highest sensitivity to Higgs boson pair production to date. Assuming all other Higgs boson couplings are equal to their values in the standard model, the observed coupling modifiers of the trilinear Higgs boson self-coupling \(κ_{λ}\) and the coupling between a pair of Higgs bosons and a pair of vector bosons c 2V are constrained within the ranges −3.3 < \(κ_{λ}\) < 8.5 and −1.3 < \(c_{2V}\) < 3.5 at 95% confidence level. Constraints on \(κ_{λ}\) are also set by combining this analysis with a search for single Higgs bosons decaying to two photons, produced in association with top quark-antiquark pairs, and by performing a simultaneous fit of \(κ_{λ}\) and the top quark Yukawa coupling modifier \(κ_{t}\).
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    Search for resonant and nonresonant new phenomena in high-mass dilepton final states at √s = 13 TeV
    (2021) CMS Collaboration; Buccilli, A.; Charaf, O.; Cooper, S.I.; Di Croce, D.; Gleyzer, S.V.; Henderson, C.; Rumerio, P.; West, C.; University of Alabama Tuscaloosa
    A search is presented for physics beyond the standard model (SM) using electron or muon pairs with high invariant mass. A data set of proton-proton collisions collected by the CMS experiment at the LHC at \(\sqrt{s}\) = 13 TeV from 2016 to 2018 corresponding to a total integrated luminosity of up to 140 fb⁻¹ is analyzed. No significant deviation is observed with respect to the SM background expectations. Upper limits are presented on the ratio of the product of the production cross section and the branching fraction to dileptons of a new narrow resonance to that of the Z boson. These provide the most stringent lower limits to date on the masses for various spin-1 particles, spin-2 gravitons in the Randall-Sundrum model, as well as spin-1 mediators between the SM and dark matter particles. Lower limits on the ultraviolet cutoff parameter are set both for four-fermion contact interactions and for the Arkani-Hamed, Dimopoulos, and Dvali model with large extra dimensions. Lepton flavor universality is tested at the TeV scale for the first time by comparing the dimuon and dielectron mass spectra. No significant deviation from the SM expectation of unity is observed.
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    Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV
    (2021) CMS Collaboration; Buccilli, A.; Charaf, O.; Cooper, S.I.; Di Croce, D.; Gleyzer, S.V.; Henderson, C.; Perez, C.U.; Rumerio, P.; West, C.; University of Alabama Tuscaloosa
    A search for phenomena beyond the standard model in final states with two oppositely charged same-flavor leptons and missing transverse momentum is presented. The search uses a data sample of proton-proton collisions at \(\sqrt{s}\) = 13 TeV, corresponding to an integrated luminosity of 137 fb⁻¹, collected by the CMS experiment at the LHC. Three potential signatures of physics beyond the standard model are explored: an excess of events with a lepton pair, whose invariant mass is consistent with the Z boson mass; a kinematic edge in the invariant mass distribution of the lepton pair; and the nonresonant production of two leptons. The observed event yields are consistent with those expected from standard model backgrounds. The results of the first search allow the exclusion of gluino masses up to 1870 GeV, as well as chargino (neutralino) masses up to 750 (800) GeV, while those of the searches for the other two signatures allow the exclusion of light-flavor (bottom) squark masses up to 1800 (1600) GeV and slepton masses up to 700 GeV, respectively, at 95% confidence level within certain supersymmetry scenarios.
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    Search for W ' bosons decaying to a top and a bottom quark at root s=13 TeV in the hadronic final state
    (Elsevier, 2021) CMS Collaboration; Buccilli, A.; Charaf, O.; Cooper, S.I.; Di Croce, D.; Gleyzer, S.V.; Henderson, C.; Perez, C.U.; Rumerio, P.; West, C.; Yerevan Physics Institute; Belarusian State University; University of Antwerp; Vrije Universiteit Brussel; Universite Libre de Bruxelles; Ghent University; Universite Catholique Louvain; Centro Brasileiro de Pesquisas Fisicas; Universidade do Estado do Rio de Janeiro; Universidade Estadual Paulista; Universidade Federal do ABC (UFABC); Bulgarian Academy of Sciences; University of Sofia; Beihang University; Tsinghua University; Chinese Academy of Sciences; Institute of High Energy Physics, CAS; Peking University; Sun Yat Sen University; Fudan University; Zhejiang University; Universidad de los Andes (Colombia); Universidad de Antioquia; University of Split; Rudjer Boskovic Institute; University of Cyprus; Charles University Prague; Escuela Politecnica Nacional Ecuador; Egyptian Academy of Scientific Research & Technology (ASRT); Egyptian Knowledge Bank (EKB); Egyptian Network of High Energy Physics (ENHEP); Fayoum University; National Institute of Chemical Physics & Biophysics (NICPB); University of Helsinki; Helsinki Institute of Physics; Lappeenranta University of Technology; CEA; UDICE-French Research Universities; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute of Nuclear and Particle Physics (IN2P3); Institut Polytechnique de Paris; Universites de Strasbourg Etablissements Associes; Universite de Strasbourg; Georgian Technical University; RWTH Aachen University; Helmholtz Association; Deutsches Elektronen-Synchrotron (DESY); University of Hamburg; Karlsruhe Institute of Technology; National Centre of Scientific Research "Demokritos"; National & Kapodistrian University of Athens; National Technical University of Athens; University of Ioannina; Eotvos Lorand University; Eotvos Lorand Research Network; Hungarian Academy of Sciences; Hungarian Wigner Research Centre for Physics; Hungarian Institute for Nuclear Research; University of Debrecen; Eszterhazy Karoly Catholic University; Indian Institute of Science (IISC) - Bangalore; Homi Bhabha National Institute; National Institute of Science Education & Research (NISER); Panjab University; University of Delhi; Saha Institute of Nuclear Physics; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Madras; Bhabha Atomic Research Center (BARC); Tata Institute of Fundamental Research (TIFR); Indian Institute of Science Education & Research (IISER) Pune; Isfahan University of Technology; University College Dublin; Istituto Nazionale di Fisica Nucleare (INFN); Universita degli Studi di Bari Aldo Moro; Politecnico di Bari; University of Bologna; University of Catania; University of Florence; University of Genoa; University of Milano-Bicocca; University of Naples Federico II; University of Basilicata; Guglielmo Marconi University; University of Padua; University of Trento; University of Pavia; University of Perugia; University of Pisa; Scuola Normale Superiore di Pisa; Sapienza University Rome; University of Turin; University of Eastern Piedmont Amedeo Avogadro; University of Trieste; Kyungpook National University; Chonnam National University; Hanyang University; Korea University; Kyung Hee University; Sejong University; Seoul National University (SNU); University of Seoul; Yonsei University; Sungkyunkwan University (SKKU); American University of Middle East; Riga Technical University; Vilnius University; Universiti Malaya; Universidad de Sonora; CINVESTAV - Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional; Instituto Politecnico Nacional - Mexico; Universidad Iberoamericana Ciudad de Mexico; Benemerita Universidad Autonoma de Puebla; University of Montenegro; University of Auckland; University of Canterbury; National Centre for Physics - Pakistan; Quaid I Azam University; AGH University of Science & Technology; National Centre for Nuclear Research; University of Warsaw; Laboratorio de Instrumentacao e Fisica Experimental de Particulas; Joint Institute for Nuclear Research - Russia; National Research Centre - Kurchatov Institute; Petersburg Nuclear Physics Institute; Russian Academy of Sciences; Institute for Nuclear Research of the Russian Academy of Sciences; Alikhanov Institute for Theoretical & Experimental Physics; Moscow Institute of Physics & Technology; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Russian Academy of Science Lebedev Physical Institute; Lomonosov Moscow State University; Institute of High Energy Physics - IHEP; Tomsk Polytechnic University; Tomsk State University; University of Belgrade; Centro de Investigaciones Energeticas, Medioambientales Tecnologicas; Autonomous University of Madrid; University of Oviedo; Consejo Superior de Investigaciones Cientificas (CSIC); Universidad de Cantabria; CSIC - Instituto de Fisica de Cantabria (IFCA); University of Colombo; University Ruhuna; European Organization for Nuclear Research (CERN); Swiss Federal Institutes of Technology Domain; Paul Scherrer Institute; ETH Zurich; University of Zurich; National Central University; National Taiwan University; Chulalongkorn University; Cukurova University; Middle East Technical University; Bogazici University; Istanbul Technical University; Istanbul University; National Academy of Sciences Ukraine; Institute for Scintillation Materials of the National Academy of Sciences of Ukraine; Kharkov Institute of Physics & Technology; University of Bristol; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC); STFC Rutherford Appleton Laboratory; Imperial College London; Brunel University; Baylor University; Catholic University of America; University of Alabama Tuscaloosa; Boston University; Brown University; University of California System; University of California Davis; University of California Los Angeles; University of California Riverside; University of California San Diego; 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    A search is performed for \({W}^{\prime }\) bosons decaying to a top and a bottom quark in the all-hadronic final state, in proton-proton collisions at a center-of-mass energy of 13TeV. The analyzed data were collected by the CMS experiment between 2016 and 2018 and correspond to an integrated luminosity of 137\({\text{fb}}^{-1}\). Deep neural network algorithms are used to identify the jet initiated by the bottom quark and the jet containing the decay products of the top quark when the W boson from the top quark decays hadronically. No excess above the estimated standard model background is observed. Upper limits on the production cross sections of \({W}^{\prime }\) bosons decaying to a top and a bottom quark are set. Both left- and right-handed \({W}^{\prime }\) bosons with masses below 3.4TeV are excluded at 95% confidence level, and the most stringent limits to date on \({W}^{\prime }\) bosons decaying to a top and a bottom quark in the all-hadronic final state are obtained.