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Search for same-charge top-quark pair production in pp collisions at √s = 13 TeV with the ATLAS detector

  • ATLAS Collaboration
  • Aix-Marseille Université and CNRS/IN2P3
  • University of Bergen
  • University of Oklahoma
  • New York University Abu Dhabi
  • iThemba Laboratory for Accelerator Based Sciences
  • Indian Institute of Technology Tirupati
  • University of South Africa
  • University of Zululand
  • Cadi Ayyad University
  • Departamento de Física Teórica y del Cosmos
  • University of Granada
  • CERN
  • University of Göttingen
  • TU Dortmund University
  • United States Department of Energy
  • Southern Methodist University
  • Mohammed V University in Rabat
  • Tel Aviv University
  • Technion-Israel Institute of Technology
  • New York University
  • National Institute for Nuclear Physics
  • Abdus Salam International Centre for Theoretical Physics
  • King's College London
  • Heidelberg University 
  • IN2P3
  • AGH University of Krakow
  • SLAC National Accelerator Laboratory
  • University of Manchester
  • Northern Illinois University
  • Istanbul University
  • Rutherford Appleton Laboratory
  • University of California at Santa Cruz
  • The University of Chicago
  • Institute for High Energy Physics
  • Johannes Gutenberg University Mainz
  • Alexandru Ioan Cuza University of Iaşi
  • Azerbaijan National Academy of Sciences
  • Royal Holloway University of London
  • Zhengzhou University
  • University of Rome Tor Vergata
  • University of Valencia
  • University of Hassan II Casablanca
  • Lund University
  • Stony Brook University
  • Waseda University
  • University of Bonn
  • Bogazici University
  • Columbia University
  • University of Victoria BC
  • Université Grenoble Alpes
  • University of Edinburgh
  • Oklahoma State University
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • National Technical University of Athens
  • University of Geneva
  • University of Warwick
  • Czech Technical University in Prague
  • Lancaster University
  • Al-Imam Muhammad Ibn Saud Islamic University
  • California State University Fresno
  • University of Liverpool
  • University of Johannesburg
  • Université Paris-Saclay
  • University of Sussex
  • Universidad Técnica Federico Santa Maria
  • University of Birmingham
  • University of Naples Federico II
  • Universidad Nacional de La Plata
  • University of Washington
  • Universidad Autónoma de Madrid
  • Universidade Federal do Rio de Janeiro
  • McGill University
  • Ludwig Maximilian University of Munich
  • University of Michigan, Ann Arbor
  • University of Freiburg
  • University of Toronto
  • Laboratório de Instrumentação e Física Experimental de Partículas
  • Aristotle University of Thessaloniki
  • High Energy Accelerator Research Organization, Tsukuba
  • University of Oslo
  • University of Sheffield
  • University of Texas at Austin
  • University of Glasgow
  • Stockholm University
  • Oskar Klein Centre
  • University of Milan
  • National and Kapodistrian University of Athens
  • The University of Tokyo
  • German Electron Synchrotron
  • Brandeis University
  • Institute of Nuclear Physics PAN
  • Duke University
  • University of Montreal
  • University of Rome La Sapienza
  • Nagoya University
  • Ochanomizu University
  • Comenius University
  • University of California at Irvine
  • University of Cape Town
  • Mohammed VI Polytechnic University
  • University of Pennsylvania
  • TRIUMF
  • Slovak Academy of Sciences
  • University of Thessaly
  • Carleton University
  • Technische Universität Dresden
  • Humboldt University of Berlin
  • University of Oregon
  • Queen Mary University of London
  • Yale University
  • University of Belgrade
  • University of Texas at Arlington
  • University of Bologna
  • University of Cambridge
  • United Arab Emirates University
  • University of Pittsburgh
  • University of Melbourne
  • University of Genoa
  • University of Amsterdam
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • Joint Laboratory of Optics
  • University of Science and Technology of China
  • University of Oxford
  • University College London
  • CAS - Institute of High Energy Physics
  • An-Najah National University
  • University of British Columbia
  • University of Siegen
  • University of Innsbruck
  • Universidad de Buenos Aires
  • Sorbonne Université
  • Tufts University
  • University of Bern
  • University of Fribourg
  • Istinye University
  • Universidade do Estado do Rio de Janeiro
  • Harvard University
  • Uppsala University
  • Lawrence Berkeley National Laboratory
  • Université Paris Cité
  • Charles University
  • University of Würzburg
  • University of Wuppertal
  • Gaziantep University
  • Weizmann Institute of Science
  • University of Calabria
  • Université Clermont Auvergne
  • Ohio State University
  • University of Massachusetts
  • University of Trento
  • Michigan State University
  • Indiana University Bloomington
  • York University Toronto
  • University of Illinois at Urbana-Champaign
  • Simon Fraser University
  • Boston University
  • Justus Liebig University Giessen
  • Nanjing University
  • University of Chinese Academy of Sciences
  • Ankara University
  • University of Copenhagen
  • Westmont College
  • Radboud University Nijmegen
  • ICREA
  • University of Minho
  • Universidad Nacional de Colombia
  • Universidade Federal de Juiz de Fora
  • Ivane Javakhishvili Tbilisi State University
  • Argonne National Laboratory
  • Shanghai Jiao Tong University
  • Kyoto University
  • Tsinghua University
  • The Collaborative Innovation Center of Quantum Matter (CICQM)
  • University of Wisconsin-Madison
  • Chinese University of Hong Kong
  • University of Arizona
  • National Tsing Hua University
  • Sofia University St. Kliment Ohridski
  • Czech Academy of Sciences
  • University of Ljubljana
  • University of Udine
  • University of Lisbon
  • University of Naples Parthenope
  • Institute of Particle Physics
  • Academia Sinica - Institute of Physics
  • University of Salento
  • Roma Tre University
  • Pontificia Universidad Católica de Chile
  • Millennium Institute for Subatomic physics at high energy frontier (SAPHIR)
  • University of Bucharest
  • Universidade Federal da Bahia
  • Ibn Tofail University
  • The University of Hong Kong
  • Louisiana Tech University
  • Shandong University
  • CSIC - Institute of Microelectronics of Barcelona
  • Adelaide University
  • University of Coimbra
  • City University of New York
  • University of the Philippines
  • University of the Aegean
  • University of Pisa
  • University of Sharjah
  • University of New Mexico
  • Demokritos National Centre for Scientific Research
  • Jagiellonian University in Kraków
  • University of Alberta
  • University of the Witwatersrand
  • University of Georgia
  • West University of Timisoara
  • A. Alikhanian Yerevan Institute of Physics
  • Shinshu University
  • Technical University of Munich
  • The University of Osaka
  • University of Tsukuba
  • National University of Science and Technology POLITEHNICA Bucharest
  • Azerbaijan State University of Economics
  • Universidade de São Paulo
  • University of Pavia
  • Yeditepe University
  • University of Texas at Dallas
  • Georgian Academy of Sciences E. Andronikashvili Institute of Physics
  • Institute of Science Tokyo
  • Center for Interdisciplinary Research and Innovation (CIRI-AUTH)
  • Iowa State University
  • Universidad Andrés Bello
  • Kobe University
  • Hellenic Open University
  • KTH Royal Institute of Technology
  • Peking University
  • Hong Kong University of Science and Technology
  • Sun Yat-Sen University
  • Stellenbosch University
  • University of Iowa
  • CNRS
  • Kyushu University
  • California State University Sacramento
  • Mohamed I University
  • University of Colorado Boulder
  • Universidad Antonio Nariño
  • The University of Sydney
  • University of Hamburg
  • Transilvania University of Brasov
  • National Institute for Research and Development of Isotopic and Molecular Technologies
  • Universidad de Tarapacá
  • Bulgarian Academy of Sciences
  • Washington College
  • University of West Attica
  • Universidad de La Serena
  • TOBB University of Economics and Technology
  • Stanford University
  • University of California at Berkeley

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4 Citas (Scopus)

Resumen

A search for the production of top-quark pairs with the same electric charge (tt or tt¯) is presented. The analysis uses proton-proton collision data at s = 13 TeV, recorded by the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 140 fb−1. Events with two same-charge leptons and at least two b-tagged jets are selected. Neural networks are employed to define two selections sensitive to additional couplings beyond the Standard Model that would enhance the production rate of same-sign top-quark pairs. No significant signal is observed, leading to an upper limit on the total production cross-section of same-sign top-quark pairs of 1.6 fb at 95% confidence level. Corresponding limits on the three Wilson coefficients associated with the Otu1, OQu1, and OQu8 operators in the Standard Model Effective Field Theory framework are derived.

Idioma originalInglés
Número de artículo84
PublicaciónJournal of High Energy Physics
Volumen2025
N.º2
DOI
EstadoPublicada - feb 2025

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