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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/23309
Title: 
Search for neutral, long-lived particles decaying into two muons in p(p)over-bar collisions at root s=1.96 TeV
Author(s): 
Institution: 
  • Univ Buenos Aires
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Universidade do Estado do Rio de Janeiro (UERJ)
  • Universidade Estadual Paulista (UNESP)
  • Univ Alberta
  • Simon Fraser Univ
  • York Univ
  • McGill Univ
  • Inst High Energy Phys
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  • Univ Wuppertal
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  • Radboud Univ Nijmegen
  • Joint Inst Nucl Res
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  • Petersburg Nucl Phys Inst
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  • Royal Inst Technol
  • Uppsala Univ
  • Univ Zurich
  • University of Lancaster
  • Univ London Imperial Coll Sci Technol & Med
  • University of Manchester
  • University of Arizona
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  • Lawrence Berkeley Natl Lab
  • Calif State Univ Fresno
  • University of California, Riverside (UCR)
  • Florida State University
  • Fermilab Natl Accelerator Lab
  • Univ Illinois
  • No Illinois Univ
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ISSN: 
0031-9007
Abstract: 
We present a search for a neutral particle, pair produced in pp collisions at root s=1.96 TeV, which decays into two muons and lives long enough to travel at least 5 cm before decaying. The analysis uses approximate to 380 pb(-1) of data recorded with the D0 detector. The background is estimated to be about one event. No candidates are observed, and limits are set on the pair-production cross section times branching fraction into dimuons + X for such particles. For a mass of 10 GeV and lifetime of 4x10(-11) s, we exclude values greater than 0.14 pb (95% C.L.). These results are used to limit the interpretation of NuTeV's excess of dimuon events.
Issue Date: 
20-Oct-2006
Citation: 
Physical Review Letters. College Pk: Amer Physical Soc, v. 97, n. 16, 7 p., 2006.
Time Duration: 
7
Publisher: 
Amer Physical Soc
Source: 
http://dx.doi.org/10.1103/PhysRevLett.97.161802
URI: 
http://hdl.handle.net/11449/23309
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/23309
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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