Measurement of the Effective Weak Mixing Angle in p p →z /γ∗ →+- Events

Made available in DSpace on 2022-04-28T19:09:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-06-13 We present a measurement of the effective weak mixing angle parameter sin2θeff in pp→Z/γ∗→μ+μ- events at a center-of-mass energy of 1.96 TeV, collected by the D0 detector at the Fermilab Tevatron Collider and corresponding to 8.6 fb-1 of integrated luminosity. The measured value of sin2θeff[μμ]=0.23016±0.00064 is further combined with the result from the D0 measurement in pp→Z/γ∗→e+e- events, resulting in sin2θeff[comb]=0.23095±0.00040. This combined result is the most precise measurement from a single experiment at a hadron collider and is the most precise determination using the coupling of the Z/γ∗ to light quarks. LAFEX Centro Brasileiro de Pesquisas Físicas Rio de Janeiro Universidade Do Estado Do Rio de Janeiro Universidade Federal Do ABC University of Science and Technology of China Universidad de Los Andes Charles University Faculty of Mathematics and Physics Center for Particle Physics Czech Technical University in Prague Institute of Physics Academy of Sciences of the Czech Republic Universidad San Francisco de Quito LPC Université Blaise Pascal CNRS IN2P3 LPSC Université Joseph Fourier Grenoble 1 CNRS IN2P3 Institut National Polytechnique de Grenoble CPPM Aix-Marseille Université CNRS IN2P3 LAL Univ. Paris-Sud CNRS IN2P3 Université Paris-Saclay LPNHE Universités Paris VI and VII CNRS IN2P3 CEA Saclay Irfu SPP IPHC Université de Strasbourg CNRS IN2P3 IPNL Université Lyon 1 CNRS IN2P3 III. Physikalisches Institut A RWTH Aachen University Physikalisches Institut Universität Freiburg II. Physikalisches Institut Georg-August-Universität Göttingen Institut für Physik Universität Mainz Ludwig-Maximilians-Universität München Panjab University Delhi University Tata Institute of Fundamental Research University College Dublin Korea Detector Laboratory Korea University CINVESTAV Nikhef Science Park Radboud University Nijmegen Joint Institute for Nuclear Research Institute for Theoretical and Experimental Physics Moscow State University Institute for High Energy Physics Petersburg Nuclear Physics Institute Institució Catalana de Recerca i Estudis Avançats (ICREA) Institut de Física d'Altes Energies (IFAE) Uppsala University Taras Shevchenko National University of Kyiv Lancaster University Imperial College London University of Manchester University of Arizona University of California Riverside Florida State University Fermi National Accelerator Laboratory University of Illinois at Chicago Northern Illinois University Northwestern University Indiana University Purdue University Calumet University of Notre Dame Iowa State University University of Kansas Louisiana Tech University Northeastern University University of Michigan Michigan State University University of Mississippi University of Nebraska Rutgers University Princeton University State University of New York University of Rochester Brookhaven National Laboratory Langston University University of Oklahoma Oklahoma State University Oregon State University Brown University University of Texas Southern Methodist University Rice University University of Virginia University of Washington Université de Lyon Augustana College Kiev Institute for Nuclear Research (KINR) University of Liverpool American Association for the Advancement of Science Deutshes Elektronen-Synchrotron (DESY), Notkestrasse 85 P. N. Lebedev Physical Institute Russian Academy of Sciences CONACyT University College London Purdue University Centro de Investigacion en Computacion IPN Karlsruher Institut für Technologie (KIT) Steinbuch Centre for Computing (SCC) SLAC Office of Science U.S. Department of Energy Universidade Estadual Paulista European Orgnaization for Nuclear Research (CERN) Institute of Physics Belgrade University of Maryland Universidade Estadual Paulista