Measurement of τ polarization in W→ τν decays with the ATLAS detector in pp collisions at [Formula: see text]
Affiliations
- 1 Fakultät für Mathematik und Physik, Albert-Ludwigs-Universität, Freiburg i.Br., Germany.
- 2 Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK United States of America.
- 3 Institut de Física d'Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona and ICREA, Barcelona, Spain.
- 4 LAL, Univ. Paris-Sud and CNRS/IN2P3, Orsay, France.
- 5 Section de Physique, Université de Genève, Geneva, Switzerland.
- 6 Department of Physics, Oxford University, Oxford, United Kingdom.
- 7 Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan.
- 8 Department of Physics, Oklahoma State University, Stillwater, OK United States of America.
- 9 Department of Physics and Astronomy, Michigan State University, East Lansing, MI United States of America.
- 10 Department of Physics, University of Toronto, Toronto, ON Canada.
- 11 Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel.
- 12 DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l'Univers), CEA Saclay (Commissariat a l'Energie Atomique), Gif-sur-Yvette, France.
- 13 INFN Sezione di Milano, Milano, Italy.
- 14 Dipartimento di Fisica, Università di Milano, Milano, Italy.
- 15 INFN Gruppo Collegato di Udine, Udine, Italy.
- 16 ICTP, Trieste, Italy.
- 17 AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland.
- 18 Physics Department, Brookhaven National Laboratory, Upton, NY United States of America.
- 19 Department of Physics, Hampton University, Hampton, VA United States of America.
- 20 Department of Physics, Yale University, New Haven, CT United States of America.
- 21 Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), München, Germany.
- 22 Fakultät für Physik, Ludwig-Maximilians-Universität München, München, Germany.
- 23 School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom.
- 24 Particle Physics Department, Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 25 Department of Physics, Brandeis University, Waltham, MA United States of America.
- 26 Departamento de Fisica Teorica y del Cosmos and CAFPE, Universidad de Granada, Granada, Spain.
- 27 Institut für Physik, Universität Mainz, Mainz, Germany.
- 28 Department of Physics, Boston University, Boston, MA United States of America.
- 29 Departments of Physics & Astronomy and Chemistry, Stony Brook University, Stony Brook, NY United States of America.
- 30 Physics Department, University of Texas at Dallas, Richardson, TX United States of America.
- 31 INFN Sezione di Roma Tor Vergata, Roma, Italy.
- 32 Dipartimento di Fisica, Università di Roma Tor Vergata, Roma, Italy.
- 33 Department of Physics, Bogazici University, Istanbul, Turkey.
- 34 Fysiska institutionen, Lunds universitet, Lund, Sweden.
- 35 International Center for Elementary Particle Physics and Department of Physics, The University of Tokyo, Tokyo, Japan.
- 36 P.N. Lebedev Institute of Physics, Academy of Sciences, Moscow, Russia.
- 37 Graduate School of Science, Kobe University, Kobe, Japan.
- 38 University at Albany, Albany, NY United States of America.
- 39 Department of Physics, Royal Holloway University of London, Surrey, United Kingdom.
- 40 Department of Physics and Astronomy, University of Victoria, Victoria, BC Canada.
- 41 Laboratoire de Physique Subatomique et de Cosmologie, Université Joseph Fourier and CNRS/IN2P3 and Institut National Polytechnique de Grenoble, Grenoble, France.
- 42 CERN, Geneva, Switzerland.
- 43 Joint Institute for Nuclear Research, JINR Dubna, Dubna, Russia.
- 44 National Institute of Physics and Nuclear Engineering, Bucharest, Romania.
- 45 Physics Department, National Technical University of Athens, Zografou, Greece.
- 46 Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Udine, Italy.
- 47 Department of Physics, Humboldt University, Berlin, Germany.
- 48 Department of Physics, University of Pennsylvania, Philadelphia, PA United States of America.
- 49 School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom.
- 50 Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
- 51 SUPA - School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 52 School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
- 53 INFN Sezione di Napoli, Napoli, Italy.
- 54 Dipartimento di Scienze Fisiche, Università di Napoli, Napoli, Italy.
- 55 Department of Particle Physics, The Weizmann Institute of Science, Rehovot, Israel.
- 56 KEK, High Energy Accelerator Research Organization, Tsukuba, Japan.
- 57 State Research Center Institute for High Energy Physics, Protvino, Russia.
- 58 Laboratorio de Instrumentacao e Fisica Experimental de Particulas - LIP, Lisboa, Portugal.
- 59 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.
- 60 Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland.
- 61 Nevis Laboratory, Columbia University, Irvington, NY United States of America.
- 62 Physikalisches Institut, University of Bonn, Bonn, Germany.
- 63 Kirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 64 Enrico Fermi Institute, University of Chicago, Chicago, IL United States of America.
- 65 Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina.
- 66 Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, Russia.
- 67 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 68 Physics Department, University of Athens, Athens, Greece.
- 69 Moscow Engineering and Physics Institute (MEPhI), Moscow, Russia.
- 70 Department of Subnuclear Physics, Institute of Experimental Physics of the Slovak Academy of Sciences, Kosice, Slovak Republic.
- 71 INFN Sezione di Roma I, Roma, Italy.
- 72 CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.
- 73 LAPP, CNRS/IN2P3 and Université de Savoie, Annecy-le-Vieux, France.
- 74 SLAC National Accelerator Laboratory, Stanford, CA United States of America.
- 75 Department of Physics, Duke University, Durham, NC United States of America.
- 76 Physics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley, CA United States of America.
- 77 Department of Physics, The University of Michigan, Ann Arbor, MI United States of America.
- 78 Departamento de Fisica Teorica C-15, Universidad Autonoma de Madrid, Madrid, Spain.
- 79 Institute for Theoretical and Experimental Physics (ITEP), Moscow, Russia.
- 80 Dipartimento di Fisica, Università La Sapienza, Roma, Italy.
- 81 Department of Physics, University of Wisconsin, Madison, WI United States of America.
- 82 Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
- 83 Department of Physics, Stockholm University, Stockholm, Sweden.
- 84 The Oskar Klein Centre, Stockholm, Sweden.
- 85 High Energy Physics Division, Argonne National Laboratory, Argonne, IL United States of America.
- 86 Czech Technical University in Prague, Praha, Czech Republic.
- 87 Department of Physics, University of Johannesburg, Johannesburg, South Africa.
- 88 Department of Physics and Astronomy, University of California Irvine, Irvine, CA United States of America.
- 89 Department of Physics, University of British Columbia, Vancouver, BC Canada.
- 90 II Physikalisches Institut, Georg-August-Universität, Göttingen, Germany.
- 91 Group of Particle Physics, University of Montreal, Montreal, QC Canada.
- 92 INFN Sezione di Roma Tre, Roma, Italy.
- 93 Dipartimento di Fisica, Università Roma Tre, Roma, Italy.
- 94 Department of Physics, University of Alberta, Edmonton, AB Canada.
- 95 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China.
- 96 Department of Physics and Astronomy, University College London, London, United Kingdom.
- 97 The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland.
- 98 School of Physics, University of Sydney, Sydney, Australia.
- 99 School of Physics, University of Melbourne, Victoria, Australia.
- 100 INFN Sezione di Genova, Genova, Italy.
- 101 Dipartimento di Fisica, Università di Genova, Genova, Italy.
- 102 Fachbereich C Physik, Bergische Universität Wuppertal, Wuppertal, Germany.
- 103 Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, MA United States of America.
- 104 Physics Department, Lancaster University, Lancaster, United Kingdom.
- 105 Department of Physics and Astronomy, University of Sussex, Brighton, United Kingdom.
- 106 Faculty of Mathematics, Physics & Informatics, Comenius University, Bratislava, Slovak Republic.
- 107 Laboratoire de Physique Nucléaire et de Hautes Energies, UPMC and Université Paris-Diderot and CNRS/IN2P3, Paris, France.
- 108 Science and Technology Center, Tufts University, Medford, MA United States of America.
- 109 Department of Physics, University of Washington, Seattle, WA United States of America.
- 110 Department of Physics Engineering, Gaziantep University, Gaziantep, Turkey.
- 111 Department of Physics, Technion: Israel Inst. of Technology, Haifa, Israel.
- 112 University of Iowa, Iowa City, IA United States of America.
- 113 Department of Physics, McGill University, Montreal, QC Canada.
- 114 INFN Sezione di Bologna, Bologna, Italy.
- 115 Faculté des Sciences Ain Chock, Réseau Universitaire de Physique des Hautes Energies - Université Hassan II, Casablanca, Morocco.
- 116 Department of Physics, University of Illinois, Urbana, IL United States of America.
- 117 Department of Physics and Astronomy, York University, Toronto, ON Canada.
- 118 Physics Department, University of Regina, Regina, SK Canada.
- 119 Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, Netherlands.
- 120 DESY, Hamburg and Zeuthen, Germany.
- 121 Dipartimento di Fisica, Università di Bologna, Bologna, Italy.
- 122 INFN Sezione di Pisa, Pisa, Italy.
- 123 Dipartimento di Fisica E. Fermi, Università di Pisa, Pisa, Italy.
- 124 SUPA - School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 125 INFN Sezione di Lecce, Lecce, Italy.
- 126 Dipartimento di Matematica e Fisica, Università del Salento, Lecce, Italy.
- 127 Domaine scientifique de la Doua, Centre de Calcul CNRS/IN2P3, Villeurbanne Cedex, France.
- 128 Niels Bohr Institute, University of Copenhagen, Kobenhavn, Denmark.
- 129 B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Republic of Belarus.
- 130 Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic.
- 131 Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom.
- 132 Institute of Physics, University of Belgrade, Belgrade, Serbia.
- 133 Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA United States of America.
- 134 Laboratoire de Physique Corpusculaire, Clermont Université and Université Blaise Pascal and CNRS/IN2P3, Aubiere Cedex, France.
- 135 Vinca Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia.
- 136 Department of Physics, The University of Texas at Arlington, Arlington, TX United States of America.
- 137 Graduate School of Science and Technology, Tokyo Metropolitan University, Tokyo, Japan.
- 138 Department of Physics, University of Massachusetts, Amherst, MA United States of America.
- 139 Center for High Energy Physics, University of Oregon, Eugene, OR United States of America.
- 140 Department of Physics and Astronomy, University of Uppsala, Uppsala, Sweden.
- 141 Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile.
- 142 Department of Physics, Indiana University, Bloomington, IN United States of America.
- 143 Department for Physics and Technology, University of Bergen, Bergen, Norway.
- 144 Fachbereich Physik, Universität Siegen, Siegen, Germany.
- 145 Department of Physics, New York University, New York, NY United States of America.
- 146 Department of Physics, University of Oslo, Oslo, Norway.
- 147 Institut für Experimentelle Physik IV, Technische Universität Dortmund, Dortmund, Germany.
- 148 Department of Physics, Ankara University, Ankara, Turkey.
- 149 Department of Physics, Northern Illinois University, DeKalb, IL United States of America.
- 150 Universidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, Brazil.
- 151 INFN Sezione di Pavia, Pavia, Italy.
- 152 Dipartimento di Fisica, Università di Pavia, Pavia, Italy.
- 153 TRIUMF, Vancouver, BC Canada.
- 154 INFN Gruppo Collegato di Cosenza, Arcavata di Rende, Italy.
- 155 Dipartimento di Fisica, Università della Calabria, Arcavata di Rende, Italy.
- 156 Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, Netherlands.
- 157 Federal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil.
- 158 Division of Physics, Dogus University, Istanbul, Turkey.
- 159 Faculty of Mathematics and Physics, Charles University in Prague, Praha, Czech Republic.
- 160 Department of Physics and Astronomy, Iowa State University, Ames, IA United States of America.
- 161 Department of Physics, Nanjing University, Jiangsu, China.
- 162 Faculté des Sciences, Université Mohammed V- Agdal, Rabat, Morocco.
- 163 Department of Physics, University of Arizona, Tucson, AZ United States of America.
- 164 E.Andronikashvili Institute of Physics, Tbilisi State University, Tbilisi, Georgia.
- 165 Santa Cruz Institute for Particle Physics, University of California Santa Cruz, Santa Cruz, CA United States of America.
- 166 Institute of Physics, Academia Sinica, Taipei, Taiwan.
- 167 Department of Physics, Jožef Stefan Institute and University of Ljubljana, Ljubljana, Slovenia.
- 168 Institut für Kern- und Teilchenphysik, Technical University Dresden, Dresden, Germany.
- 169 University Politehnica Bucharest, Bucharest, Romania.
- 170 Department of Physics, Simon Fraser University, Burnaby, BC Canada.
- 171 Faculté des Sciences, Université Mohamed Premier and LPTPM, Oujda, Morocco.
- 172 Departamento de Fisica, Pontificia Universidad Católica de Chile, Santiago, Chile.
- 173 Physics Department, Southern Methodist University, Dallas, TX United States of America.
- 174 High Energy Physics Institute, Tbilisi State University, Tbilisi, Georgia.
- 175 Federal University of Sao Joao del Rei (UFSJ), Sao Joao del Rei, Brazil.
- 176 Instituto de Fisica, Universidade de Sao Paulo, Sao Paulo, Brazil.
- 177 II Physikalisches Institut, Justus-Liebig-Universität Giessen, Giessen, Germany.
- 178 Faculté des Sciences Semlalia, Université Cadi Ayyad, LPHEA-Marrakech, Morocco.
- 179 Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität, Innsbruck, Austria.
- 180 Petersburg Nuclear Physics Institute, Gatchina, Russia.
- 181 School of Physics, Shandong University, Shandong, China.
- 182 Ohio State University, Columbus, OH United States of America.
- 183 Fakultät für Physik und Astronomie, Julius-Maximilians-Universität, Würzburg, Germany.
- 184 Centre National de l'Energie des Sciences Techniques Nucleaires, Rabat, Morocco.
- 185 National Scientific and Educational Centre for Particle and High Energy Physics, Minsk, Republic of Belarus.
- 186 Department of Physics, Carleton University, Ottawa, ON Canada.
- 187 Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia.
- 188 Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina.
- 189 Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM United States of America.
- 190 Yerevan Physics Institute, Yerevan, Armenia.
- 191 Palacký University, RCPTM, Olomouc, Czech Republic.
- 192 School of Physics, University of the Witwatersrand, Johannesburg, South Africa.
- 193 Department of Modern Physics, University of Science and Technology of China, Anhui, China.
- 194 Graduate School of Science, Osaka University, Osaka, Japan.
- 195 Institute of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571 Japan.
- 196 Graduate School of Science, Nagoya University, Nagoya, Japan.
- 197 Department of Physics, Shinshu University, Nagano, Japan.
- 198 Department of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece.
- 199 Faculty of Science, Kyoto University, Kyoto, Japan.
- 200 Department of Physics, Tokyo Institute of Technology, Tokyo, Japan.
- 201 Physics Department, Royal Institute of Technology, Stockholm, Sweden.
- 202 Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 203 Department of Physics, Kyushu University, Fukuoka, Japan.
- 204 Waseda University, Tokyo, Japan.
- 205 ZITI Institut für technische Informatik, Ruprecht-Karls-Universität Heidelberg, Mannheim, Germany.
- 206 Centro de Investigaciones, Universidad Antonio Narino, Bogota, Colombia.
- 207 Faculty of Applied Information Science, Hiroshima Institute of Technology, Hiroshima, Japan.
- 208 Faculty of Science, Okayama University, Okayama, Japan.
- 209 Nagasaki Institute of Applied Science, Nagasaki, Japan.
- 210 Division of Physics, TOBB University of Economics and Technology, Ankara, Turkey.
- 211 Kyoto University of Education, Kyoto, Japan.
- 212 Ritsumeikan University, Kusatsu, Shiga, Japan.
- 213 Department of Physics, Massachusetts Institute of Technology, Cambridge, MA United States of America.
- 214 Turkish Atomic Energy Authority, Ankara, Turkey.
- 215 Department of Physics, Gazi University, Ankara, Turkey.
- PMID: 25814842
- PMCID: PMC4371045
- DOI: 10.1140/epjc/s10052-012-2062-6
Measurement of τ polarization in W→ τν decays with the ATLAS detector in pp collisions at [Formula: see text]
Authors
Affiliations
- 1 Fakultät für Mathematik und Physik, Albert-Ludwigs-Universität, Freiburg i.Br., Germany.
- 2 Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK United States of America.
- 3 Institut de Física d'Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona and ICREA, Barcelona, Spain.
- 4 LAL, Univ. Paris-Sud and CNRS/IN2P3, Orsay, France.
- 5 Section de Physique, Université de Genève, Geneva, Switzerland.
- 6 Department of Physics, Oxford University, Oxford, United Kingdom.
- 7 Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan.
- 8 Department of Physics, Oklahoma State University, Stillwater, OK United States of America.
- 9 Department of Physics and Astronomy, Michigan State University, East Lansing, MI United States of America.
- 10 Department of Physics, University of Toronto, Toronto, ON Canada.
- 11 Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel.
- 12 DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l'Univers), CEA Saclay (Commissariat a l'Energie Atomique), Gif-sur-Yvette, France.
- 13 INFN Sezione di Milano, Milano, Italy.
- 14 Dipartimento di Fisica, Università di Milano, Milano, Italy.
- 15 INFN Gruppo Collegato di Udine, Udine, Italy.
- 16 ICTP, Trieste, Italy.
- 17 AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland.
- 18 Physics Department, Brookhaven National Laboratory, Upton, NY United States of America.
- 19 Department of Physics, Hampton University, Hampton, VA United States of America.
- 20 Department of Physics, Yale University, New Haven, CT United States of America.
- 21 Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), München, Germany.
- 22 Fakultät für Physik, Ludwig-Maximilians-Universität München, München, Germany.
- 23 School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom.
- 24 Particle Physics Department, Rutherford Appleton Laboratory, Didcot, United Kingdom.
- 25 Department of Physics, Brandeis University, Waltham, MA United States of America.
- 26 Departamento de Fisica Teorica y del Cosmos and CAFPE, Universidad de Granada, Granada, Spain.
- 27 Institut für Physik, Universität Mainz, Mainz, Germany.
- 28 Department of Physics, Boston University, Boston, MA United States of America.
- 29 Departments of Physics & Astronomy and Chemistry, Stony Brook University, Stony Brook, NY United States of America.
- 30 Physics Department, University of Texas at Dallas, Richardson, TX United States of America.
- 31 INFN Sezione di Roma Tor Vergata, Roma, Italy.
- 32 Dipartimento di Fisica, Università di Roma Tor Vergata, Roma, Italy.
- 33 Department of Physics, Bogazici University, Istanbul, Turkey.
- 34 Fysiska institutionen, Lunds universitet, Lund, Sweden.
- 35 International Center for Elementary Particle Physics and Department of Physics, The University of Tokyo, Tokyo, Japan.
- 36 P.N. Lebedev Institute of Physics, Academy of Sciences, Moscow, Russia.
- 37 Graduate School of Science, Kobe University, Kobe, Japan.
- 38 University at Albany, Albany, NY United States of America.
- 39 Department of Physics, Royal Holloway University of London, Surrey, United Kingdom.
- 40 Department of Physics and Astronomy, University of Victoria, Victoria, BC Canada.
- 41 Laboratoire de Physique Subatomique et de Cosmologie, Université Joseph Fourier and CNRS/IN2P3 and Institut National Polytechnique de Grenoble, Grenoble, France.
- 42 CERN, Geneva, Switzerland.
- 43 Joint Institute for Nuclear Research, JINR Dubna, Dubna, Russia.
- 44 National Institute of Physics and Nuclear Engineering, Bucharest, Romania.
- 45 Physics Department, National Technical University of Athens, Zografou, Greece.
- 46 Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Udine, Italy.
- 47 Department of Physics, Humboldt University, Berlin, Germany.
- 48 Department of Physics, University of Pennsylvania, Philadelphia, PA United States of America.
- 49 School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom.
- 50 Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
- 51 SUPA - School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
- 52 School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
- 53 INFN Sezione di Napoli, Napoli, Italy.
- 54 Dipartimento di Scienze Fisiche, Università di Napoli, Napoli, Italy.
- 55 Department of Particle Physics, The Weizmann Institute of Science, Rehovot, Israel.
- 56 KEK, High Energy Accelerator Research Organization, Tsukuba, Japan.
- 57 State Research Center Institute for High Energy Physics, Protvino, Russia.
- 58 Laboratorio de Instrumentacao e Fisica Experimental de Particulas - LIP, Lisboa, Portugal.
- 59 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.
- 60 Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland.
- 61 Nevis Laboratory, Columbia University, Irvington, NY United States of America.
- 62 Physikalisches Institut, University of Bonn, Bonn, Germany.
- 63 Kirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
- 64 Enrico Fermi Institute, University of Chicago, Chicago, IL United States of America.
- 65 Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina.
- 66 Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, Russia.
- 67 INFN Laboratori Nazionali di Frascati, Frascati, Italy.
- 68 Physics Department, University of Athens, Athens, Greece.
- 69 Moscow Engineering and Physics Institute (MEPhI), Moscow, Russia.
- 70 Department of Subnuclear Physics, Institute of Experimental Physics of the Slovak Academy of Sciences, Kosice, Slovak Republic.
- 71 INFN Sezione di Roma I, Roma, Italy.
- 72 CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.
- 73 LAPP, CNRS/IN2P3 and Université de Savoie, Annecy-le-Vieux, France.
- 74 SLAC National Accelerator Laboratory, Stanford, CA United States of America.
- 75 Department of Physics, Duke University, Durham, NC United States of America.
- 76 Physics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley, CA United States of America.
- 77 Department of Physics, The University of Michigan, Ann Arbor, MI United States of America.
- 78 Departamento de Fisica Teorica C-15, Universidad Autonoma de Madrid, Madrid, Spain.
- 79 Institute for Theoretical and Experimental Physics (ITEP), Moscow, Russia.
- 80 Dipartimento di Fisica, Università La Sapienza, Roma, Italy.
- 81 Department of Physics, University of Wisconsin, Madison, WI United States of America.
- 82 Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
- 83 Department of Physics, Stockholm University, Stockholm, Sweden.
- 84 The Oskar Klein Centre, Stockholm, Sweden.
- 85 High Energy Physics Division, Argonne National Laboratory, Argonne, IL United States of America.
- 86 Czech Technical University in Prague, Praha, Czech Republic.
- 87 Department of Physics, University of Johannesburg, Johannesburg, South Africa.
- 88 Department of Physics and Astronomy, University of California Irvine, Irvine, CA United States of America.
- 89 Department of Physics, University of British Columbia, Vancouver, BC Canada.
- 90 II Physikalisches Institut, Georg-August-Universität, Göttingen, Germany.
- 91 Group of Particle Physics, University of Montreal, Montreal, QC Canada.
- 92 INFN Sezione di Roma Tre, Roma, Italy.
- 93 Dipartimento di Fisica, Università Roma Tre, Roma, Italy.
- 94 Department of Physics, University of Alberta, Edmonton, AB Canada.
- 95 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China.
- 96 Department of Physics and Astronomy, University College London, London, United Kingdom.
- 97 The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland.
- 98 School of Physics, University of Sydney, Sydney, Australia.
- 99 School of Physics, University of Melbourne, Victoria, Australia.
- 100 INFN Sezione di Genova, Genova, Italy.
- 101 Dipartimento di Fisica, Università di Genova, Genova, Italy.
- 102 Fachbereich C Physik, Bergische Universität Wuppertal, Wuppertal, Germany.
- 103 Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, MA United States of America.
- 104 Physics Department, Lancaster University, Lancaster, United Kingdom.
- 105 Department of Physics and Astronomy, University of Sussex, Brighton, United Kingdom.
- 106 Faculty of Mathematics, Physics & Informatics, Comenius University, Bratislava, Slovak Republic.
- 107 Laboratoire de Physique Nucléaire et de Hautes Energies, UPMC and Université Paris-Diderot and CNRS/IN2P3, Paris, France.
- 108 Science and Technology Center, Tufts University, Medford, MA United States of America.
- 109 Department of Physics, University of Washington, Seattle, WA United States of America.
- 110 Department of Physics Engineering, Gaziantep University, Gaziantep, Turkey.
- 111 Department of Physics, Technion: Israel Inst. of Technology, Haifa, Israel.
- 112 University of Iowa, Iowa City, IA United States of America.
- 113 Department of Physics, McGill University, Montreal, QC Canada.
- 114 INFN Sezione di Bologna, Bologna, Italy.
- 115 Faculté des Sciences Ain Chock, Réseau Universitaire de Physique des Hautes Energies - Université Hassan II, Casablanca, Morocco.
- 116 Department of Physics, University of Illinois, Urbana, IL United States of America.
- 117 Department of Physics and Astronomy, York University, Toronto, ON Canada.
- 118 Physics Department, University of Regina, Regina, SK Canada.
- 119 Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, Netherlands.
- 120 DESY, Hamburg and Zeuthen, Germany.
- 121 Dipartimento di Fisica, Università di Bologna, Bologna, Italy.
- 122 INFN Sezione di Pisa, Pisa, Italy.
- 123 Dipartimento di Fisica E. Fermi, Università di Pisa, Pisa, Italy.
- 124 SUPA - School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom.
- 125 INFN Sezione di Lecce, Lecce, Italy.
- 126 Dipartimento di Matematica e Fisica, Università del Salento, Lecce, Italy.
- 127 Domaine scientifique de la Doua, Centre de Calcul CNRS/IN2P3, Villeurbanne Cedex, France.
- 128 Niels Bohr Institute, University of Copenhagen, Kobenhavn, Denmark.
- 129 B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Republic of Belarus.
- 130 Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic.
- 131 Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom.
- 132 Institute of Physics, University of Belgrade, Belgrade, Serbia.
- 133 Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA United States of America.
- 134 Laboratoire de Physique Corpusculaire, Clermont Université and Université Blaise Pascal and CNRS/IN2P3, Aubiere Cedex, France.
- 135 Vinca Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia.
- 136 Department of Physics, The University of Texas at Arlington, Arlington, TX United States of America.
- 137 Graduate School of Science and Technology, Tokyo Metropolitan University, Tokyo, Japan.
- 138 Department of Physics, University of Massachusetts, Amherst, MA United States of America.
- 139 Center for High Energy Physics, University of Oregon, Eugene, OR United States of America.
- 140 Department of Physics and Astronomy, University of Uppsala, Uppsala, Sweden.
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- 156 Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, Netherlands.
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- 176 Instituto de Fisica, Universidade de Sao Paulo, Sao Paulo, Brazil.
- 177 II Physikalisches Institut, Justus-Liebig-Universität Giessen, Giessen, Germany.
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- 179 Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität, Innsbruck, Austria.
- 180 Petersburg Nuclear Physics Institute, Gatchina, Russia.
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- 190 Yerevan Physics Institute, Yerevan, Armenia.
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- 192 School of Physics, University of the Witwatersrand, Johannesburg, South Africa.
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- 194 Graduate School of Science, Osaka University, Osaka, Japan.
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- 214 Turkish Atomic Energy Authority, Ankara, Turkey.
- 215 Department of Physics, Gazi University, Ankara, Turkey.
- PMID: 25814842
- PMCID: PMC4371045
- DOI: 10.1140/epjc/s10052-012-2062-6
Abstract
In this paper, a measurement of τ polarization in W→τν decays is presented. It is measured from the energies of the decay products in hadronic τ decays with a single final state charged particle. The data, corresponding to an integrated luminosity of 24 pb-1, were collected by the ATLAS experiment at the Large Hadron Collider in 2010. The measured value of the τ polarization is [Formula: see text], in agreement with the Standard Model prediction, and is consistent with a physically allowed 95 % CL interval [-1,-0.91]. Measurements of τ polarization have not previously been made at hadron colliders.
Figures

Fig. 1
Kinematic distributions for τ candidates.…
Fig. 1
Kinematic distributions for τ candidates. The combined statistical and energy scale systematic uncertainties…

Fig. 2
Event kinematic distributions. The combined…
Fig. 2
Event kinematic distributions. The combined statistical and energy scale systematic uncertainties are overlaid…

Fig. 3
Charged asymmetry distributions. The combined…
Fig. 3
Charged asymmetry distributions. The combined statistical and energy scale systematic uncertainties are overlaid…

Fig. 4
Simulated signal and background templates…
Fig. 4
Simulated signal and background templates for left-handed and right-handed τ decays along with…
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