https://doi.org/10.1140/epjc/s10052-023-12050-4
Regular Article - Experimental Physics
Measurement of the top quark mass using a profile likelihood approach with the lepton + jets final states in proton–proton collisions at 
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Yerevan Physics Institute, Yerevan, Armenia
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Institut für Hochenergiephysik, Vienna, Austria
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Universiteit Antwerpen, Antwerpen, Belgium
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Vrije Universiteit Brussel, Brussels, Belgium
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Université Libre de Bruxelles, Brussels, Belgium
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Ghent University, Ghent, Belgium
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Université Catholique de Louvain, Louvain-la-Neuve, Belgium
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Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil
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Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
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Universidade Estadual Paulista, Universidade Federal do ABC, São Paulo, Brazil
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Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria
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University of Sofia, Sofia, Bulgaria
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Instituto De Alta Investigación, Universidad de Tarapacá, Casilla 7 D, Arica, Chile
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Beihang University, Beijing, China
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Department of Physics, Tsinghua University, Beijing, China
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Institute of High Energy Physics, Beijing, China
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State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China
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Sun Yat-Sen University, Guangzhou, China
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University of Science and Technology of China, Hefei, China
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Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai, China
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Zhejiang University, Hangzhou, Zhejiang, China
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Universidad de Los Andes, Bogotá, Colombia
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Universidad de Antioquia, Medellín, Colombia
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Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Split, Croatia
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Faculty of Science, University of Split, Split, Croatia
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Institute Rudjer Boskovic, Zagreb, Croatia
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University of Cyprus, Nicosia, Cyprus
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Charles University, Prague, Czech Republic
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Escuela Politecnica Nacional, Quito, Ecuador
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Universidad San Francisco de Quito, Quito, Ecuador
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Academy of Scientific Research and Technology of the Arab Republic of Egypt, Egyptian Network of High Energy Physics, Cairo, Egypt
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Center for High Energy Physics (CHEP-FU), Fayoum University, El-Fayoum, Egypt
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National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
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Department of Physics, University of Helsinki, Helsinki, Finland
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Helsinki Institute of Physics, Helsinki, Finland
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Lappeenranta-Lahti University of Technology, Lappeenranta, Finland
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IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette, France
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Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
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Université de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France
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Institut de Physique des 2 Infinis de Lyon (IP2I), Villeurbanne, France
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Georgian Technical University, Tbilisi, Georgia
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I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany
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III. Physikalisches Institut A, RWTH Aachen University, Aachen, Germany
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III. Physikalisches Institut B, RWTH Aachen University, Aachen, Germany
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Deutsches Elektronen-Synchrotron, Hamburg, Germany
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University of Hamburg, Hamburg, Germany
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Karlsruher Institut für Technologie, Karlsruhe, Germany
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Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos, Aghia Paraskevi, Greece
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National and Kapodistrian University of Athens, Athens, Greece
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National Technical University of Athens, Athens, Greece
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University of Ioánnina, Ioannina, Greece
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MTA-ELTE Lendület CMS Particle and Nuclear Physics Group, Eötvös Loránd University, Budapest, Hungary
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Wigner Research Centre for Physics, Budapest, Hungary
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Institute of Nuclear Research ATOMKI, Debrecen, Hungary
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Institute of Physics, University of Debrecen, Debrecen, Hungary
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Karoly Robert Campus, MATE Institute of Technology, Gyongyos, Hungary
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Panjab University, Chandigarh, India
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University of Delhi, Delhi, India
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Saha Institute of Nuclear Physics, HBNI, Kolkata, India
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Indian Institute of Technology Madras, Chennai, India
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Bhabha Atomic Research Centre, Mumbai, India
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Tata Institute of Fundamental Research-A, Mumbai, India
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Tata Institute of Fundamental Research-B, Mumbai, India
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National Institute of Science Education and Research, An OCC of Homi Bhabha National Institute, Bhubaneswar, Odisha, India
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Indian Institute of Science Education and Research (IISER), Pune, India
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Isfahan University of Technology, Isfahan, Iran
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Institute for Research in Fundamental Sciences (IPM), Tehran, Iran
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University College Dublin, Dublin, Ireland
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INFN Sezione di Bari, Università di Bari, Politecnico di Bari, Bari, Italy
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INFN Sezione di Bologna, Università di Bologna, Bologna, Italy
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INFN Sezione di Catania, Università di Catania, Catania, Italy
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INFN Sezione di Firenze, Università di Firenze, Florence, Italy
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INFN Laboratori Nazionali di Frascati, Frascati, Italy
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INFN Sezione di Genova, Università di Genova, Genoa, Italy
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INFN Sezione di Milano-Bicocca, Università di Milano-Bicocca, Milan, Italy
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INFN Sezione di Napoli, Università di Napoli ‘Federico II’, Napoles, Italy; Università della Basilicata, Potenza, Italy; Università G. Marconi, Rome, Italy
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INFN Sezione di Padova, Università di Padova, Padua, Italy; Università di Trento, Trento, Italy
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INFN Sezione di Pavia, Università di Pavia, Pavia, Italy
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INFN Sezione di Perugia, Università di Perugia, Perugia, Italy
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INFN Sezione di Pisa, Università di Pisa, Scuola Normale Superiore di Pisa, Pisa, Italy; Università di Siena, Siena, Italy
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INFN Sezione di Roma, Sapienza Università di Roma, Rome, Italy
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INFN Sezione di Torino, Università di Torino, Turin, Italy; Università del Piemonte Orientale, Novara, Italy
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INFN Sezione di Trieste, Università di Trieste, Trieste, Italy
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Kyungpook National University, Daegu, Korea
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Institute for Universe and Elementary Particles, Chonnam National University, Kwangju, Korea
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Hanyang University, Seoul, Korea
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Korea University, Seoul, Korea
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Department of Physics, Kyung Hee University, Seoul, Korea
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Sejong University, Seoul, Korea
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Seoul National University, Seoul, Korea
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University of Seoul, Seoul, Korea
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Department of Physics, Yonsei University, Seoul, Korea
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Sungkyunkwan University, Suwon, Korea
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College of Engineering and Technology, American University of the Middle East (AUM), Dasman, Kuwait
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Riga Technical University, Riga, Latvia
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Vilnius University, Vilnius, Lithuania
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National Centre for Particle Physics, Universiti Malaya, Kuala Lumpur, Malaysia
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Universidad de Sonora (UNISON), Hermosillo, Mexico
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Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico
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Universidad Iberoamericana, Mexico City, Mexico
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Benemerita Universidad Autonoma de Puebla, Puebla, Mexico
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University of Montenegro, Podgorica, Montenegro
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National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan
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Faculty of Computer Science, Electronics and Telecommunications, AGH University of Krakow, Krakow, Poland
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National Centre for Nuclear Research, Swierk, Poland
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Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland
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Laboratório de Instrumentação e Física Experimental de Partículas, Lisbon, Portugal
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VINCA Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
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Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
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Universidad Autónoma de Madrid, Madrid, Spain
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Instituto Universitario de Ciencias y Tecnologías Espaciales de Asturias (ICTEA), Universidad de Oviedo, Oviedo, Spain
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Instituto de Física de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain
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University of Colombo, Colombo, Sri Lanka
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Department of Physics, University of Ruhuna, Matara, Sri Lanka
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CERN, European Organization for Nuclear Research, Geneva, Switzerland
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Paul Scherrer Institut, Villigen, Switzerland
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ETH Zurich-Institute for Particle Physics and Astrophysics (IPA), Zurich, Switzerland
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Universität Zürich, Zurich, Switzerland
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National Central University, Chung-Li, Taiwan
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National Taiwan University (NTU), Taipei, Taiwan
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Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
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Physics Department, Science and Art Faculty, Çukurova University, Adana, Turkey
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Physics Department, Middle East Technical University, Ankara, Turkey
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Bogazici University, Istanbul, Turkey
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Istanbul Technical University, Istanbul, Turkey
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Istanbul University, Istanbul, Turkey
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Institute for Scintillation Materials of National Academy of Science of Ukraine, Kharkiv, Ukraine
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National Science Centre, Kharkiv Institute of Physics and Technology, Kharkiv, Ukraine
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University of Bristol, Bristol, UK
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Rutherford Appleton Laboratory, Didcot, UK
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Imperial College, London, UK
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Brunel University, Uxbridge, UK
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Baylor University, Waco, TX, USA
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Catholic University of America, Washington, DC, USA
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The University of Alabama, Tuscaloosa, AL, USA
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Boston University, Boston, MA, USA
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Brown University, Providence, RI, USA
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University of California, Davis, Davis, CA, USA
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University of California, Los Angeles, CA, USA
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University of California, Riverside, Riverside, CA, USA
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University of California, San Diego, La Jolla, CA, USA
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Department of Physics, University of California, Santa Barbara, Santa Barbara, CA, USA
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California Institute of Technology, Pasadena, CA, USA
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Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
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University of Colorado Boulder, Boulder, CO, USA
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Cornell University, Ithaca, NY, USA
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Fermi National Accelerator Laboratory, Batavia, IL, USA
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University of Florida, Gainesville, FL, USA
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Florida State University, Tallahassee, FL, USA
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Florida Institute of Technology, Melbourne, FL, USA
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University of Illinois Chicago, Chicago, USA
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The University of Iowa, Iowa City, IA, USA
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Johns Hopkins University, Baltimore, MD, USA
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The University of Kansas, Lawrence, KS, USA
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Kansas State University, Manhattan, KS, USA
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Lawrence Livermore National Laboratory, Livermore, CA, USA
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University of Maryland, College Park, MD, USA
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Massachusetts Institute of Technology, Cambridge, MA, USA
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University of Minnesota, Minneapolis, MN, USA
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University of Mississippi, Oxford, MS, USA
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University of Nebraska-Lincoln, Lincoln, NE, USA
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State University of New York at Buffalo, Buffalo, NY, USA
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Northeastern University, Boston, MA, USA
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Northwestern University, Evanston, IL, USA
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University of Notre Dame, Notre Dame, IN, USA
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The Ohio State University, Columbus, OH, USA
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Princeton University, Princeton, NJ, USA
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University of Puerto Rico, Mayagüez, PR, USA
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Purdue University, West Lafayette, IN, USA
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Purdue University Northwest, Hammond, IN, USA
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Rice University, Houston, TX, USA
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University of Rochester, Rochester, NY, USA
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The Rockefeller University, New York, NY, USA
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Rutgers, The State University of New Jersey, Piscataway, NJ, USA
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University of Tennessee, Knoxville, TN, USA
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Texas A &M University, College Station, TX, USA
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Texas Tech University, Lubbock, TX, USA
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Vanderbilt University, Nashville, TN, USA
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University of Virginia, Charlottesville, VA, USA
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Wayne State University, Detroit, MI, USA
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University of Wisconsin-Madison, Madison, WI, USA
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Authors Affiliated with an Institute or an International Laboratory Covered by a Cooperation Agreement with CERN, Geneva, Switzerland
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Yerevan State University, Yerevan, Armenia
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TU Wien, Vienna, Austria
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Institute of Basic and Applied Sciences, Faculty of Engineering, Arab Academy for Science, Technology and Maritime Transport, Alexandria, Egypt
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Université Libre de Bruxelles, Brussels, Belgium
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Universidade Estadual de Campinas, Campinas, Brazil
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Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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UFMS, Nova Andradina, Brazil
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University of Chinese Academy of Sciences, Beijing, China
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Nanjing Normal University, Nanjing, China
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The University of Iowa, Iowa City, IA, USA
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University of Chinese Academy of Sciences, Beijing, China
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an Institute or an International Laboratory Covered by a Cooperation Agreement with CERN, Geneva, Switzerland
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Cairo University, Cairo, Egypt
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Suez University, Suez, Egypt
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British University in Egypt, Cairo, Egypt
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Purdue University, West Lafayette, IN, USA
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Université de Haute Alsace, Mulhouse, France
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Department of Physics, Tsinghua University, Beijing, China
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The University of the State of Amazonas, Manaus, Brazil
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Erzincan Binali Yildirim University, Erzincan, Turkey
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University of Hamburg, Hamburg, Germany
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III. Physikalisches Institut A, RWTH Aachen University, Aachen, Germany
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Isfahan University of Technology, Isfahan, Iran
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Bergische University Wuppertal (BUW), Wuppertal, Germany
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Brandenburg University of Technology, Cottbus, Germany
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Forschungszentrum Jülich, Jülich, Germany
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CERN, European Organization for Nuclear Research, Geneva, Switzerland
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Physics Department, Faculty of Science, Assiut University, Assiut, Egypt
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Karoly Robert Campus, MATE Institute of Technology, Gyongyos, Hungary
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Wigner Research Centre for Physics, Budapest, Hungary
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Institute of Physics, University of Debrecen, Debrecen, Hungary
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Institute of Nuclear Research ATOMKI, Debrecen, Hungary
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Facultatea de Fizica, Universitatea Babes-Bolyai, Cluj-Napoca, Romania
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Faculty of Informatics, University of Debrecen, Debrecen, Hungary
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Punjab Agricultural University, Ludhiana, India
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UPES-University of Petroleum and Energy Studies, Dehra Dun, India
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University of Visva-Bharati, Santiniketan, India
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University of Hyderabad, Hyderabad, India
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Indian Institute of Science (IISc), Bangalore, India
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Indian Institute of Technology (IIT), Mumbai, India
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IIT Bhubaneswar, Bhubaneswar, India
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Institute of Physics, Bhubaneswar, India
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Deutsches Elektronen-Synchrotron, Hamburg, Germany
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Department of Physics, Isfahan University of Technology, Isfahan, Iran
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Sharif University of Technology, Tehran, Iran
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Department of Physics, University of Science and Technology of Mazandaran, Behshahr, Iran
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Helwan University, Cairo, Egypt
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Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Bologna, Italy
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Centro Siciliano di Fisica Nucleare e di Struttura Della Materia, Catania, Italy
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Università degli Studi Guglielmo Marconi, Rome, Italy
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Scuola Superiore Meridionale, Università di Napoli ‘Federico II’, Naples, Italy
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Fermi National Accelerator Laboratory, Batavia, IL, USA
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Laboratori Nazionali di Legnaro dell’INFN, Legnaro, Italy
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Università di Napoli ‘Federico II’, Naples, Italy
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Ain Shams University, Cairo, Egypt
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Consiglio Nazionale delle Ricerche-Istituto Officina dei Materiali, Perugia, Italy
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Department of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
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Consejo Nacional de Ciencia y Tecnología, Mexico City, Mexico
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IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette, France
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Faculty of Physics, University of Belgrade, Belgrade, Serbia
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Trincomalee Campus, Eastern University, Sri Lanka, Nilaveli, Sri Lanka
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Saegis Campus, Nugegoda, Sri Lanka
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INFN Sezione di Pavia, Università di Pavia, Pavia, Italy
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National and Kapodistrian University of Athens, Athens, Greece
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Ecole Polytechnique Fédérale Lausanne, Lausanne, Switzerland
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Universität Zürich, Zurich, Switzerland
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Stefan Meyer Institute for Subatomic Physics, Vienna, Austria
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Laboratoire d’Annecy-le-Vieux de Physique des Particules, IN2P3-CNRS, Annecy-le-Vieux, France
251
Research Center of Experimental Health Science, Near East University, Mersin, Turkey
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Konya Technical University, Konya, Turkey
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Izmir Bakircay University, Izmir, Turkey
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Adiyaman University, Adiyaman, Turkey
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Istanbul Gedik University, Istanbul, Turkey
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Necmettin Erbakan University, Konya, Turkey
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Bozok Universitetesi Rektörlügü, Yozgat, Turkey
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Marmara University, Istanbul, Turkey
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Milli Savunma University, Istanbul, Turkey
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Kafkas University, Kars, Turkey
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Hacettepe University, Ankara, Turkey
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Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
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Ozyegin University, Istanbul, Turkey
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Vrije Universiteit Brussel, Brussels, Belgium
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School of Physics and Astronomy, University of Southampton, Southampton, UK
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University of Bristol, Bristol, UK
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IPPP Durham University, Durham, UK
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Faculty of Science, Monash University, Clayton, Australia
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Università di Torino, Turin, Italy
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Bethel University, St. Paul, MN, USA
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Karamanoğlu Mehmetbey University, Karaman, Turkey
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California Institute of Technology, Pasadena, CA, USA
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United States Naval Academy, Annapolis, MD, USA
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Bingol University, Bingol, Turkey
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Georgian Technical University, Tbilisi, Georgia
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Sinop University, Sinop, Turkey
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Erciyes University, Kayseri, Turkey
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Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai, China
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Texas A &M University at Qatar, Doha, Qatar
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Kyungpook National University, Daegu, Korea
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Another Institute or International Laboratory Covered by a Cooperation Agreement with CERN, Geneva, Switzerland
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Imperial College, London, UK
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Institute of Nuclear Physics of the Uzbekistan Academy of Sciences, Tashkent, Uzbekistan
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CERN, Geneva, Switzerland
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Received:
3
February
2023
Accepted:
16
September
2023
Published online:
25
October
2023
Abstract
The mass of the top quark is measured in 36.3
of LHC proton–proton collision data collected with the CMS detector at . The measurement uses a sample of top quark pair candidate events containing one isolated electron or muon and at least four jets in the final state. For each event, the mass is reconstructed from a kinematic fit of the decay products to a top quark pair hypothesis. A profile likelihood method is applied using up to four observables per event to extract the top quark mass. The top quark mass is measured to be 
. This approach significantly improves the precision over previous measurements.
N. Tonon, P. Baillon, G. R. Snow: Deceased.
The original online version of this article was revised. The following dedication has been added: “We dedicate this paper to the memory of our friend and colleague Thomas Ferbel, whose innovative work on precision measurements of the top quark mass laid the foundation for this publication.”.
We dedicate this paper to the memory of our friend and colleague Thomas Ferbel, whose innovative work on precision measurements of the top quark mass laid the foundation for this publication.
Copyright comment corrected publication 2023
© The Author(s) 2023. corrected publication 2023
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