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Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at [Formula: see text].
Aad, G; Abbott, B; Abdallah, J; Abdel Khalek, S; Abdinov, O; Aben, R; Abi, B; Abolins, M; AbouZeid, O S; Abramowicz, H; Abreu, H; Abreu, R; Abulaiti, Y; Acharya, B S; Adamczyk, L; Adams, D L; Adelman, J; Adomeit, S; Adye, T; Agatonovic-Jovin, T; Aguilar-Saavedra, J A; Agustoni, M; Ahlen, S P; Ahmadov, F; Aielli, G; Akerstedt, H; Åkesson, T P A; Akimoto, G; Akimov, A V; Alberghi, G L; Albert, J; Albrand, S; Alconada Verzini, M J; Aleksa, M; Aleksandrov, I N; Alexa, C; Alexander, G; Alexandre, G; Alexopoulos, T; Alhroob, M; Alimonti, G; Alio, L; Alison, J; Allbrooke, B M M; Allison, L J; Allport, P P; Almond, J; Aloisio, A; Alonso, A; Alonso, F.
Affiliation
  • Aad G; CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.
  • Abbott B; Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK USA.
  • Abdallah J; Institute of Physics, Academia Sinica, Taipei, Taiwan.
  • Abdel Khalek S; LAL, Université Paris-Sud and CNRS/IN2P3, Orsay, France.
  • Abdinov O; Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan.
  • Aben R; Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, The Netherlands.
  • Abi B; Department of Physics, Oklahoma State University, Stillwater, OK USA.
  • Abolins M; Department of Physics and Astronomy, Michigan State University, East Lansing, MI USA.
  • AbouZeid OS; Department of Physics, University of Toronto, Toronto, ON Canada.
  • Abramowicz H; Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel.
  • Abreu H; Department of Physics, Technion: Israel Institute of Technology, Haifa, Israel.
  • Abreu R; CERN, Geneva, Switzerland.
  • Abulaiti Y; Department of Physics, Stockholm University, Stockholm, Sweden; The Oskar Klein Centre, Stockholm, Sweden.
  • Acharya BS; INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy; ICTP, Trieste, Italy; Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Udine, Italy.
  • Adamczyk L; Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Kraków, Poland; Marian Smoluchowski Institute of Physics, Jagiellonian University, Kraków, Poland.
  • Adams DL; Physics Department, Brookhaven National Laboratory, Upton, NY USA.
  • Adelman J; Department of Physics, Yale University, New Haven, CT USA.
  • Adomeit S; Fakultät für Physik, Ludwig-Maximilians-Universität München, Munich, Germany.
  • Adye T; Particle Physics Department, Rutherford Appleton Laboratory, Didcot, UK.
  • Agatonovic-Jovin T; Institute of Physics, University of Belgrade, Belgrade, Serbia; Vinca Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia.
  • Aguilar-Saavedra JA; Laboratorio de Instrumentacao e Fisica Experimental de Particulas-LIP, Lisbon, Portugal; Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal; Department of Physics, University of Coimbra, Coimbra, Portugal; Centro de Física Nuclear da Universidade de Lisboa, Lisbon, Portugal; Departament
  • Agustoni M; Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland.
  • Ahlen SP; Department of Physics, Boston University, Boston, MA USA.
  • Ahmadov F; Joint Institute for Nuclear Research, JINR Dubna, Dubna, Russia.
  • Aielli G; INFN Sezione di Roma Tor Vergata, Roma, Italy; Dipartimento di Fisica, Università di Roma Tor Vergata, Rome, Italy.
  • Akerstedt H; Department of Physics, Stockholm University, Stockholm, Sweden; The Oskar Klein Centre, Stockholm, Sweden.
  • Åkesson TP; Fysiska institutionen, Lunds universitet, Lund, Sweden.
  • Akimoto G; International Center for Elementary Particle Physics and Department of Physics, The University of Tokyo, Tokyo, Japan.
  • Akimov AV; P.N. Lebedev Institute of Physics, Academy of Sciences, Moscow, Russia.
  • Alberghi GL; INFN Sezione di Bologna, Bologna, Italy; Dipartimento di Fisica e Astronomia, Università di Bologna, Bologna, Italy.
  • Albert J; Department of Physics and Astronomy, University of Victoria, Victoria, BC Canada.
  • Albrand S; Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France.
  • Alconada Verzini MJ; Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina.
  • Aleksa M; CERN, Geneva, Switzerland.
  • Aleksandrov IN; Joint Institute for Nuclear Research, JINR Dubna, Dubna, Russia.
  • Alexa C; National Institute of Physics and Nuclear Engineering, Bucharest, Romania; Physics Department, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj Napoca, Romania; University Politehnica Bucharest, Bucharest, Romania; West University in Timisoara, Timisoara,
  • Alexander G; Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel.
  • Alexandre G; Section de Physique, Université de Genève, Geneva, Switzerland.
  • Alexopoulos T; Physics Department, National Technical University of Athens, Zografou, Greece.
  • Alhroob M; INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy; ICTP, Trieste, Italy; Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Udine, Italy.
  • Alimonti G; INFN Sezione di Milano, Milan, Italy; Dipartimento di Fisica, Università di Milano, Milan, Italy.
  • Alio L; CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.
  • Alison J; Enrico Fermi Institute, University of Chicago, Chicago, IL USA.
  • Allbrooke BM; School of Physics and Astronomy, University of Birmingham, Birmingham, UK.
  • Allison LJ; Physics Department, Lancaster University, Lancaster, UK.
  • Allport PP; Oliver Lodge Laboratory, University of Liverpool, Liverpool, UK.
  • Almond J; School of Physics and Astronomy, University of Manchester, Manchester, UK.
  • Aloisio A; INFN Sezione di Napoli, Naples, Italy; Dipartimento di Fisica, Università di Napoli, Naples, Italy.
  • Alonso A; Niels Bohr Institute, University of Copenhagen, Kobenhavn, Denmark.
  • Alonso F; Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina.
Eur Phys J C Part Fields ; 75(4): 158, 2015.
Article in En | MEDLINE | ID: mdl-26041974
ABSTRACT
The mass of the top quark is measured in a data set corresponding to 4.6 [Formula see text] of proton-proton collisions with centre-of-mass energy [Formula see text] TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic decays of top-antitop quark pairs with at least six jets in the final state are selected. The substantial background from multijet production is modelled with data-driven methods that utilise the number of identified [Formula see text]-quark jets and the transverse momentum of the sixth leading jet, which have minimal correlation. The top-quark mass is obtained from template fits to the ratio of three-jet to dijet mass. The three-jet mass is calculated from the three jets produced in a top-quark decay. Using these three jets the dijet mass is obtained from the two jets produced in the [Formula see text] boson decay. The top-quark mass obtained from this fit is thus less sensitive to the uncertainty in the energy measurement of the jets. A binned likelihood fit yields a top-quark mass of [Formula see text].
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Eur Phys J C Part Fields Year: 2015 Document type: Article Affiliation country: Francia
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Eur Phys J C Part Fields Year: 2015 Document type: Article Affiliation country: Francia