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Search for supersymmetry in hadronic final states with missing transverse energy using the variables αT and b-quark multiplicity in pp collisions at √s = 8 TeV
Submitted by Vitor Silverio Rodrigues ([email protected]) on 2014-05-27T11:30:34Z
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Previous issue date: 2013-09-01
An inclusive search for supersymmetric processes that produce final states with jets and missing transverse energy is performed in pp collisions at a centre-of-mass energy of 8 TeV. The data sample corresponds to an integrated luminosity of 11.7 fb-1 collected by the CMS experiment at the LHC. In this search, a dimensionless kinematic variable, αT, is used to discriminate between events with genuine and misreconstructed missing transverse energy. The search is based on an examination of the number of reconstructed jets per event, the scalar sum of transverse energies of these jets, and the number of these jets identified as originating from bottom quarks. No significant excess of events over the standard model expectation is found. Exclusion limits are set in the parameter space of simplified models, with a special emphasis on both compressed-spectrum scenarios and direct or gluino-induced production of third-generation squarks. For the case of gluino-mediated squark production, gluino masses up to 950-1125 GeV are excluded depending on the assumed model. For the direct pair-production of squarks, masses up to 450 GeV are excluded for a single light first- or second-generation squark, increasing to 600 GeV for bottom squarks. © 2013 CERN for the benefit of the CMS collaboration.
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Institut für Hochenergiephysik der OeAW, Wien
National Centre for Particle and High Energy Physics, Minsk
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Institute of High Energy Physics, Beijing
State Key Laboratory of Nuclear Physics and Technology Peking University, Beijing
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Technical University of Split, Split
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Institute Rudjer Boskovic, Zagreb
University of Cyprus, Nicosia
Charles University, Prague
Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics, Cairo
National Institute of Chemical Physics and Biophysics, Tallinn
Department of Physics University of Helsinki, Helsinki
Helsinki Institute of Physics, Helsinki
Lappeenranta University of Technology, Lappeenranta
DSM/IRFU CEA/Saclay, Gif-sur-Yvette
Laboratoire Leprince-Ringuet, Ecole Polytechnique IN2P3-CNRS, Palaiseau
Institut Pluridisciplinaire Hubert Curien, Universite de Strasbourg, Universite de Haute Alsace Mulh CNRS/IN2P3, Strasbourg
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Institut für Experimentelle Kernphysik, Karlsruhe
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KFKI Research Institute for Particle and Nuclear Physics, Budapest
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Saha Institute of Nuclear Physics, Kolkata
Bhabha Atomic Research Centre, Mumbai
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