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Title: Measurements of W/Z production with the ATLAS detector

W and Z boson production have been measured in the electron, muon and tau decay channels at the LHC with the ATLAS detector. Total and differential cross sections, defined in terms of the decay lepton kinematics, have been measured as a function of rapidity and transverse momentum. Ratios of the cross sections demonstrate sensitivity to lepton universality. The kinematic distributions constrain parton densities and QCD calculations, including resummations of soft gluon radiation and the matching of NLO matrix elements (or high multiplicity tree-level matrix elements) to parton shower approximations. The polarization of W bosons is also measured, as, for the first time, is the polarization of the tau lepton in W → τν decays.
Authors:
 [1] ;
  1. CERN, CH-1211 Genève 23 (Switzerland)
Publication Date:
OSTI Identifier:
22280652
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1560; Journal Issue: 1; Conference: CIPANP 2012: 11. conference on the intersections of particle and nuclear physics, St. Petersburg, FL (United States), 29 May - 3 Jun 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; APPROXIMATIONS; CERN LHC; DIFFERENTIAL CROSS SECTIONS; ELECTRONS; GLUONS; MATRIX ELEMENTS; MULTIPARTICLE SPECTROMETERS; MULTIPLICITY; MUONS; PARTICLE DECAY; PARTICLE IDENTIFICATION; PARTICLE PRODUCTION; PARTICLE RAPIDITY; POLARIZATION; QUANTUM CHROMODYNAMICS; TAU PARTICLES; TRANSVERSE MOMENTUM; W MINUS BOSONS; W PLUS BOSONS; Z NEUTRAL BOSONS