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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24552
Title: 
Search for Pair Production of First-Generation Scalar Leptoquarks in pp Collisions at root s=7 TeV
Author(s): 
Institution: 
  • Yerevan Phys Inst
  • Inst Hochenergiephys OeAW
  • Natl Ctr Particle & High Energy Phys
  • Univ Antwerp
  • Vrije Univ Brussel
  • Univ Libre Brussels
  • Univ Ghent
  • Catholic Univ Louvain
  • Univ Mons
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Univ Estado Rio de Janeiro
  • Rutgers State Univ
  • Tech Univ Split
  • Univ Tennessee
  • Texas A&M Univ
  • Texas Tech Univ
  • Vanderbilt Univ
  • University of Virginia (UVA)
  • Wayne State Univ
  • Univ Wisconsin
  • Izmir Inst Technol
  • Chonnam Natl Univ
  • Universidade Federal do ABC (UFABC)
  • Suez Canal Univ
  • Fayoum Univ
  • Univ Split
  • Brandenburg Tech Univ Cottbus
  • Rudjer Boskovic Inst
  • Lab Instrumentacao & Fis Expt Particulas
  • Kafkas Univ
  • Suleyman Demirel Univ
  • Ege Univ
  • Korea University
  • Univ Southampton
  • Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH
  • Univ Cyprus
  • Acad Sci Res & Technol Arab Republ Egypt
  • NICPB
  • Univ Helsinki
  • Helsinki Inst Phys
  • Joint Inst Nucl Res
  • Lappeenranta Univ Technol
  • CNRS
  • Univ Seoul
  • CEA Saclay
  • Ecole Polytech
  • Univ Haute Alsace Mulhouse
  • IN2P3
  • Univ Lyon 1
  • Georgian Acad Sci
  • Tbilisi State Univ
  • RWTH Aachen University
  • Petersburg Nucl Phys Inst
  • Sungkyunkwan Univ
  • DESY
  • Univ Hamburg
  • Univ Karlsruhe
  • Inst Nucl Phys Demokritos
  • Univ Athens
  • Univ Ioannina
  • KFKI Res Inst Particle & Nucl Phys
  • Inst Nucl Res ATOMKI
  • Russian Acad Sci
  • Vilnius Univ
  • Univ Debrecen
  • Panjab Univ
  • University of Delhi
  • Bhabha Atom Res Ctr
  • Tata Inst Fundamental Res EHEP
  • Tata Inst Fundamental Res HECR
  • Inst Res & Fundamental Sci IPM
  • Ist Nazl Fis Nucl
  • Univ Bari
  • Politecn Bari
  • IPN
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Univ Bologna
  • Univ Catania
  • Univ Florence
  • Univ Iberoamer
  • Univ Milano Bicocca
  • Moscow MV Lomonosov State Univ
  • Univ Naples Federico II
  • Univ Padua
  • Univ Trent
  • Univ Pavia
  • Benemerita Univ Autonoma Puebla
  • Univ Perugia
  • PN Lebedev Phys Inst
  • Univ Pisa
  • Scuola Normale Super Pisa
  • Univ Roma La Sapienza
  • Univ Turin
  • Univ Piemonte Orientale Novara
  • Univ Autonoma San Luis Potosi
  • Univ Trieste
  • Kangwon Natl Univ
  • State Res Ctr Russian Federat
  • Kyungpook Natl Univ
  • University of Belgrade
  • Eotvos Lorand Univ
  • Univ Auckland
  • Univ Canterbury
  • Quaid I Azam Univ
  • Univ Warsaw
  • Soltan Inst Nucl Studies
  • Vinca Inst Nucl Sci
  • Universidade Estadual Paulista (UNESP)
  • CIEMAT
  • Univ Autonoma Madrid
  • Univ Oviedo
  • Visva Bharati Univ
  • Univ Cantabria
  • CERN
  • Paul Scherrer Inst
  • Swiss Fed Inst Technol
  • Univ Zurich
  • Natl Cent Univ
  • Natl Taiwan Univ
  • Bulgarian Acad Sci
  • Cukurova Univ
  • Middle E Tech Univ
  • Bogazici Univ
  • Natl Sci Ctr
  • Univ Bristol
  • Rutherford Appleton Lab
  • Univ London Imperial Coll Sci Technol & Med
  • Brunel Univ
  • Baylor Univ
  • Boston University
  • Univ Sofia
  • Brown University
  • Univ Basilicata
  • Univ Calif Davis
  • Univ Calif Los Angeles
  • University of California, Riverside (UCR)
  • Univ Calif San Diego
  • Univ Calif Santa Barbara
  • CALTECH
  • Carnegie Mellon Univ
  • Univ Colorado
  • Cornell Univ
  • Inst High Energy Phys
  • Univ Geneva
  • Fairfield Univ
  • Fermilab Natl Accelerator Lab
  • Univ Florida
  • Florida Int Univ
  • Florida State University
  • Florida Inst Technol
  • Univ Illinois
  • Univ Iowa
  • Johns Hopkins Univ
  • University of Kansas (KU)
  • Gaziosmanpasa Univ
  • Peking Univ
  • Kansas State University
  • Lawrence Livermore Natl Lab
  • University of Maryland
  • MIT
  • Univ Minnesota
  • University of Mississippi
  • Univ Nebraska
  • SUNY Buffalo
  • Northeastern University
  • Adiyaman Univ
  • Northwestern University (NU)
  • Universidad de los Andes
  • Univ Notre Dame
  • Ohio State Univ
  • Princeton University
  • Univ Puerto Rico
  • Purdue Univ
  • Purdue University Calumet
  • Rice University
  • University of Rochester
  • Mersin Univ
  • Rockefeller Univ
ISSN: 
0031-9007
Sponsorship: 
  • FMSR (Austria)
  • Fonds de la Recherche Scientifique (FNRS)
  • FWO (Belgium)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
  • Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
  • MES (Bulgaria)
  • Organisation Européenne pour la Recherche Nucléaire (CERN)
  • Chinese Academy of Sciences (CAS)
  • MoST (China)
  • National Natural Science Foundation of China (NSFC)
  • COLCIENCIAS (Colombia)
  • MSES (Croatia)
  • Research Promotion Foundation (RPF)
  • Academy of Sciences (Estonia)
  • National Institute of Chemical Physics and Biophysics (NICPB)
  • Academy of Finland
  • ME (Finland)
  • Helsinki Institute of Physics (HIP)
  • Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
  • Centre national de la recherche scientifique (CNRS)
  • Bundesministerium für Bildung und Forschung (BMBF)
  • Deutsche Forschungsgemeinschaft (DFG)
  • HGF (Germany)
  • General Secretariat for Research and Technology (GSRT)
  • Hungarian Scientific Research Fund (OTKA)
  • NKTH (Hungary)
  • Department of Atomic Energy (DAE) - India
  • Department of Science and Technology (DST) - India
  • Institute for Research in Fundamental Sciences (IPM)
  • Science Foundation Ireland (SFI)
  • Istituto Nazionale di Fisica Nucleare (INFN)
  • National Research Foundation of Korea (NRF)
  • WCU (Korea)
  • LAS (Lithuania)
  • Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)
  • Consejo Nacional de Ciencia y Tecnología (CONACYT)
  • SEP (Mexico)
  • UASLP-FAI (Mexico)
  • Pakistan Atomic Energy Commission (PAEC)
  • SCSR (Poland)
  • Fundação para a Ciência e a Tecnologia (FCT)
  • Joint Institute for Nuclear Research (JINR)
  • MST (Russia)
  • MAE (Russia)
  • Ministry of Science and Technological Development (MSTD) - Serbia
  • MICINN (Spain)
  • Centro Nacional de Física de Partículas, Astropartículas y Nuclear (CPAN)
  • Swiss Funding Agencies (Switzerland)
  • NSC (Taipei)
  • Scientific and Technological Research Council of Turkey (TUBITAK)
  • Türkiye Atom Enerjisi Kurumu (TAEK)
  • Science and Technology Facilities Council (STFC)
  • DOE (USA)
  • National Science Foundation (NSF) - USA
Sponsorship Process Number: 
CNRS (France): IN2P3
Abstract: 
A search for pair production of first-generation scalar leptoquarks is performed in the final state containing two electrons and two jets using proton-proton collision data at root s = 7 TeV. The data sample used corresponds to an integrated luminosity of 33 pb(-1) collected with the CMS detector at the CERN LHC. The number of observed events is in good agreement with the predictions for the standard model background processes, and an upper limit is set on the leptoquark pair production cross section times beta(2) as a function of the leptoquark mass, where beta is the branching fraction of the leptoquark decay to an electron and a quark. A 95% confidence level lower limit is set on the mass of a first-generation scalar leptoquark at 384 GeV for beta = 1, which is the most stringent direct limit to date.
Issue Date: 
17-May-2011
Citation: 
Physical Review Letters. College Pk: Amer Physical Soc, v. 106, n. 20, p. 15, 2011.
Time Duration: 
15
Publisher: 
Amer Physical Soc
Source: 
http://dx.doi.org/10.1103/PhysRevLett.106.201802
URI: 
http://hdl.handle.net/11449/24552
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/24552
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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