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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/128933
Title: 
Search for displaced supersymmetry in events with an electron and a muon with large impact parameters
Author(s): 
Institution: 
  • Yerevan Phys Inst
  • Inst Hochenergiephys OeAW
  • Natl Ctr Particle &High Energy Phys
  • Univ Antwerp
  • Vrije Univ Brussel
  • Univ Libre Bruxelles
  • Univ Ghent
  • Catholic Univ Louvain
  • Univ Mons
  • Ctr Brasileiro Pesquisas Fis
  • Universidade do Estado do Rio de Janeiro (UERJ)
  • Universidade Estadual Paulista (UNESP)
  • Universidade Federal do ABC (UFABC)
  • Inst Nucl Energy Res
  • Univ Sofia
  • Inst High Energy Phys
  • Peking Univ
  • Univ Los Andes
  • Univ Split
  • Rudjer Boskovic Inst
  • Univ Cyprus
  • Charles Univ Prague
  • Acad Sci Res &Technol Arab Republ Egypt
  • NICPB
  • Univ Helsinki
  • Helsinki Inst Phys
  • Lappeenranta Univ Technol
  • CEA Saclay
  • Ecole Polytech
  • Univ Haute Alsace Mulhouse
  • Ctr Calcul Inst Natl Phys Nucl &Particules
  • Univ Lyon 1
  • Tbilisi State Univ
  • RWTH Aachen Univ I
  • RWTH Aachen Univ III
  • DESY
  • Univ Hamburg
  • Inst Expt Kernphys
  • NCSR Demokritos
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  • Univ Ioannina
  • Wigner Res Ctr Phys
  • Inst Nucl Res
  • Univ Debrecen
  • Natl Inst Sci Educ &Res
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  • Saha Inst Nucl Phys
  • Bhabha Atom Res Ctr
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  • Argonne Natl Lab
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  • Yildiz Tekn Univ
ISSN: 
0031-9007
Sponsorship: 
  • BMWFW
  • FWF (Austria)
  • 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)
  • CERN
  • CAS (China)
  • MoST (China)
  • NSFC (China)COLCIENCIAS (Colombia)
Abstract: 
A search for new long-lived particles decaying to leptons is presented using proton-proton collisions produced by the LHC at root s = 8 TeV. Data used for the analysis were collected by the CMS detector and correspond to an integrated luminosity of 19.7 fb(-1). Events are selected with an electron and muon with opposite charges that both have transverse impact parameter values between 0.02 and 2 cm. The search has been designed to be sensitive to a wide range of models with nonprompt e-mu final states. Limits are set on the "displaced supersymmetry" model, with pair production of top squarks decaying into an e-mu final state via R-parity-violating interactions. The results are the most restrictive to date on this model, with the most stringent limit being obtained for a top squark lifetime corresponding to c tau = 2 cm, excluding masses below 790 GeV at 95% confidence level.
Issue Date: 
13-Feb-2015
Citation: 
Physical Review Letters, v. 114, n. 6, p. 1-15, 2015.
Time Duration: 
1-15
Publisher: 
Amer Physical Soc
Source: 
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114.061801
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/128933
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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