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Search for direct top squark pair production in final states with two tau leptons in pp collisions at [Formula: see text] TeV with the ATLAS detector.
Aad, G; Abbott, B; Abdallah, J; Abdinov, O; Aben, R; 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; Affolder, A A; Agatonovic-Jovin, T; Agricola, J; Aguilar-Saavedra, J A; Ahlen, S P; Ahmadov, F; Aielli, G; Akerstedt, H; Åkesson, T P A; Akimov, A V; Alberghi, G L; Albert, J; Albrand, S; Alconada Verzini, M J; Aleksa, M; Aleksandrov, I N; Alexa, C; Alexander, G; Alexopoulos, T; Alhroob, M; Alimonti, G; Alio, L; Alison, J; Alkire, S P; Allbrooke, B M M; Allport, P P; Aloisio, A; Alonso, A; Alonso, F; Alpigiani, C; Altheimer, A; Alvarez Gonzalez, B; Álvarez Piqueras, D.
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.
  • 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.
  • 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; Center for High Energy Physics, University of Oregon, Eugene, OR USA.
  • 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.
  • Adamczyk L; AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland.
  • Adams DL; Physics Department, Brookhaven National Laboratory, Upton, NY USA.
  • Adelman J; Department of Physics, Northern Illinois University, De Kalb, IL USA.
  • Adomeit S; Fakultät für Physik, Ludwig-Maximilians-Universität München, Munich, Germany.
  • Adye T; Particle Physics Department, Rutherford Appleton Laboratory, Didcot, UK.
  • Affolder AA; Oliver Lodge Laboratory, University of Liverpool, Liverpool, UK.
  • Agatonovic-Jovin T; Institute of Physics, University of Belgrade, Belgrade, Serbia.
  • Agricola J; II Physikalisches Institut, Georg-August-Universität, Göttingen, Germany.
  • Aguilar-Saavedra JA; Laboratório de Instrumentação e Física Experimental de Partículas-LIP, Lisbon, Portugal ; Departamento de Fisica Teorica y del Cosmos and CAFPE, Universidad de Granada, Granada, Spain.
  • 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, Rome, 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.
  • 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.
  • Alexander G; Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel.
  • Alexopoulos T; Physics Department, National Technical University of Athens, Zografou, Greece.
  • Alhroob M; Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK USA.
  • Alimonti G; INFN Sezione 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.
  • Alkire SP; Nevis Laboratory, Columbia University, Irvington, NY USA.
  • Allbrooke BM; Department of Physics and Astronomy, University of Sussex, Brighton, UK.
  • Allport PP; Oliver Lodge Laboratory, University of Liverpool, Liverpool, 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, Copenhagen, Denmark.
  • Alonso F; Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina.
  • Alpigiani C; School of Physics and Astronomy, Queen Mary University of London, London, UK.
  • Altheimer A; Nevis Laboratory, Columbia University, Irvington, NY USA.
  • Alvarez Gonzalez B; CERN, Geneva, Switzerland.
  • Álvarez Piqueras D; Instituto de Física Corpuscular (IFIC) and Departamento de Física Atómica, Molecular y Nuclear and Departamento de Ingeniería Electrónica and Instituto de Microelectrónica de Barcelona (IMB-CNM), University of Valencia and CSIC, Valencia, Spain.
Eur Phys J C Part Fields ; 76: 81, 2016.
Article in En | MEDLINE | ID: mdl-27069414
ABSTRACT
A search for direct pair production of the supersymmetric partner of the top quark, decaying via a scalar tau to a nearly massless gravitino, has been performed using 20 fb[Formula see text] of proton-proton collision data at [Formula see text]. The data were collected by the ATLAS experiment at the LHC in 2012. Top squark candidates are searched for in events with either two hadronically decaying tau leptons, one hadronically decaying tau and one light lepton, or two light leptons. No significant excess over the Standard Model expectation is found. Exclusion limits at [Formula see text] confidence level are set as a function of the top squark and scalar tau masses. Depending on the scalar tau mass, ranging from the [Formula see text] LEP limit to the top squark mass, lower limits between 490 and [Formula see text] are placed on the top squark mass within the model considered.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Eur Phys J C Part Fields Year: 2016 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: 2016 Document type: Article Affiliation country: Francia