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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/74360
Title: 
Search for new physics in events with opposite-sign leptons, jets, and missing transverse energy in pp collisions at s=7 TeV
Author(s): 
Institution: 
  • Yerevan Physics Institute
  • Institut für Hochenergiephysik der OeAW
  • National Centre for Particle and High Energy Physics
  • Universiteit Antwerpen
  • Vrije Universiteit Brussel
  • Université Libre de Bruxelles
  • Ghent University
  • Université Catholique de Louvain
  • Université de Mons
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Universidade do Estado do Rio de Janeiro (UERJ)
  • Universidade Estadual Paulista (UNESP)
  • Institute for Nuclear Research and Nuclear Energy
  • University of Sofia
  • Institute of High Energy Physics
  • Peking University
  • Universidad de los Andes
  • Technical University of Split
  • University of Split
  • Institute Rudjer Boskovic
  • University of Cyprus
  • Charles University
  • Egyptian Network of High Energy Physics
  • National Institute of Chemical Physics and Biophysics
  • University of Helsinki
  • Helsinki Institute of Physics
  • Lappeenranta University of Technology
  • CEA/Saclay
  • IN2P3-CNRS
  • Université de Haute Alsace Mulhouse, CNRS/IN2P3
  • Centre de Calcul de l'Institut National de Physique Nucleaire et de Physique des Particules (IN2P3)
  • Institut de Physique Nucléaire de Lyon
  • Tbilisi State University
  • I. Physikalisches Institut
  • III. Physikalisches Institut A
  • III. Physikalisches Institut B
  • Deutsches Elektronen-Synchrotron
  • University of Hamburg
  • Institut für Experimentelle Kernphysik
  • Institute of Nuclear Physics Demokritos
  • University of Athens
  • University of Ioánnina
  • KFKI Research Institute for Particle and Nuclear Physics
  • Institute of Nuclear Research ATOMKI
  • University of Debrecen
  • Panjab University
  • University of Delhi
  • Saha Institute of Nuclear Physics
  • Bhabha Atomic Research Centre
  • Tata Institute of Fundamental Research - EHEP
  • Tata Institute of Fundamental Research - HECR
  • Institute for Research in Fundamental Sciences (IPM)
  • INFN Sezione di Bari
  • Università di Bari
  • Politecnico di Bari
  • INFN Sezione di Bologna
  • Università di Bologna
  • INFN Sezione di Catania
  • Università di Catania
  • INFN Sezione di Firenze
  • Università di Firenze
  • INFN Laboratori Nazionali di Frascati
  • INFN Sezione di Genova
  • INFN Sezione di Milano-Bicocca
  • Università di Milano-Bicocca
  • INFN Sezione di Napoli
  • Università di Napoli Federico II
  • INFN Sezione di Padova
  • Università di Padova
  • Università di Trento (Trento)
  • INFN Sezione di Pavia
  • Università di Pavia
  • INFN Sezione di Perugia
  • Università di Perugia
  • INFN Sezione di Pisa
  • Università di Pisa
  • Scuola Normale Superiore di Pisa
  • INFN Sezione di Roma
  • Università di Roma La Sapienza
  • INFN Sezione di Torino
  • Università di Torino
  • Università del Piemonte Orientale (Novara)
  • INFN Sezione di Trieste
  • Università di Trieste
  • Kangwon National University
  • Kyungpook National University
  • Institute for Universe and Elementary Particles
  • Konkuk University
  • Korea University
  • University of Seoul
  • Sungkyunkwan University
  • Vilnius University
  • Centro de Investigacion y de Estudios Avanzados del IPN
  • Universidad Iberoamericana
  • Benemerita Universidad Autonoma de Puebla
  • Universidad Autónoma de San Luis Potosí
  • University of Auckland
  • University of Canterbury
  • Quaid-I-Azam University
  • University of Warsaw
  • Soltan Institute for Nuclear Studies
  • Laboratório de Instrumentação e Física Experimental de Partículas (LIP)
  • Joint Institute for Nuclear Research
  • Petersburg Nuclear Physics Institute
  • Institute for Nuclear Research
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Moscow State University
  • P.N. Lebedev Physical Institute
  • Institute for High Energy Physics
  • Faculty of Physics and Vinca Institute of Nuclear Sciences
  • Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)
  • Universidad Autónoma de Madrid
  • Universidad de Oviedo
  • CSIC-Universidad de Cantabria
  • European Organization for Nuclear Research
  • Paul Scherrer Institut
  • ETH Zurich
  • Universität Zürich
  • National Central University
  • National Taiwan University (NTU)
  • Cukurova University
  • Physics Department
  • Bogazici University
  • Istanbul Technical University
  • Kharkov Institute of Physics and Technology
  • University of Bristol
  • Rutherford Appleton Laboratory
  • Imperial College
  • Brunel University
  • Baylor University
  • The University of Alabama
  • Boston University
  • Brown University
  • University of California, Davis
  • University of California, Los Angeles
  • University of California, Riverside (UCR)
  • University of California
  • University of California, Santa Barbara
  • California Institute of Technology
  • Carnegie Mellon University
  • University of Colorado at Boulder
  • Cornell University
  • Fairfield University
  • Fermi National Accelerator Laboratory
  • University of Florida
  • Florida International University
  • Florida State University
  • Florida Institute of Technology
  • University of Illinois at Chicago (UIC)
  • The University of Iowa
  • Johns Hopkins University
  • University of Kansas (KU)
  • Kansas State University
  • Lawrence Livermore National Laboratory
  • University of Maryland
  • Massachusetts Institute of Technology (MIT)
  • University of Minnesota
  • University
  • University of Nebraska-Lincoln
  • State University of New York at Buffalo
  • Northeastern University
  • Northwestern University (NU)
  • University of Notre Dame
  • The Ohio State University
  • Princeton University
  • University of Puerto Rico
  • Purdue University
  • Purdue University Calumet
  • Rice University
  • University of Rochester
  • The Rockefeller University
  • Rutgers, the State University of New Jersey
  • University of Tennessee
  • Texas A and M University
  • Texas Tech University
  • Vanderbilt University
  • University of Virginia (UVA)
  • Wayne State University
  • University of Wisconsin
ISSN: 
0370-2693
Abstract: 
A search is presented for physics beyond the standard model (BSM) in final states with a pair of opposite-sign isolated leptons accompanied by jets and missing transverse energy. The search uses LHC data recorded at a center-of-mass energy s=7 TeV with the CMS detector, corresponding to an integrated luminosity of approximately 5 fb-1. Two complementary search strategies are employed. The first probes models with a specific dilepton production mechanism that leads to a characteristic kinematic edge in the dilepton mass distribution. The second strategy probes models of dilepton production with heavy, colored objects that decay to final states including invisible particles, leading to very large hadronic activity and missing transverse energy. No evidence for an event yield in excess of the standard model expectations is found. Upper limits on the BSM contributions to the signal regions are deduced from the results, which are used to exclude a region of the parameter space of the constrained minimal supersymmetric extension of the standard model. Additional information related to detector efficiencies and response is provided to allow testing specific models of BSM physics not considered in this Letter. © 2012 CERN.
Issue Date: 
8-Jan-2013
Citation: 
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 718, n. 3, p. 815-840, 2013.
Time Duration: 
815-840
Keywords: 
  • CMS
  • Physics
  • Supersymmetry
Source: 
http://dx.doi.org/10.1016/j.physletb.2012.11.036
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/74360
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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