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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24441
Title: 
Search for ZZ and z gamma* production in p(p)over-bar collisions at root s=1.96 TeV and limits on anomalous ZZZ and ZZ gamma* couplings
Author(s): 
Institution: 
  • Joint Inst Nucl Res
  • Univ Buenos Aires
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Univ Estado Rio de Janerio
  • Universidade Federal do ABC (UFABC)
  • Universidade Estadual Paulista (UNESP)
  • Univ Alberta
  • Simon Fraser Univ
  • York Univ
  • McGill Univ
  • Univ Sci & Technol China
  • Universidad de los Andes
  • Charles Univ Prague
  • Czech Tech Univ Prague
  • Acad Sci Czech Republic
  • Univ San Francisco Quito
  • Univ Clermont Ferrand
  • Univ Aix Marseille 2
  • CNRS
  • Univ Paris 11
  • Univ Paris 06
  • Univ Paris 07
  • CEA
  • Univ Strasbourg 1
  • Univ Haute Alsace
  • Univ Lyon 1
  • Univ Lyon
  • RWTH Aachen University
  • Univ Bonn
  • Univ Freiburg
  • Johannes Gutenberg Univ Mainz
  • Univ Munich
  • Univ Wuppertal
  • Panjab Univ
  • University of Delhi
  • Tata Inst Fundamental Res
  • Univ Coll Dublin
  • Korea University
  • Sungkyunkwan Univ
  • CINVESTAV
  • NIKHEF
  • Univ Amsterdam
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Moscow MV Lomonosov State Univ
  • Inst High Energy Phys
  • Petersburg Nucl Phys Inst
  • Lund Univ
  • Royal Inst Technol
  • Stockholm Univ
  • Uppsala Univ
  • Univ Zurich
  • University of Lancaster
  • Imperial Coll
  • University of Manchester
  • University of Arizona
  • Lawrence Berkeley Natl Lab
  • Univ Calif Berkeley
  • Calif State Univ Fresno
  • University of California, Riverside (UCR)
  • Florida State University
  • Fermilab Natl Accelerator Lab
  • Univ Illinois
  • No Illinois Univ
  • Northwestern University (NU)
  • Indiana University
  • Univ Notre Dame
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  • Iowa State Univ
  • University of Kansas (KU)
  • Kansas State University
  • Louisiana Tech University
  • University of Maryland
  • Boston University
  • Northeastern University
  • University of Michigan
  • Michigan State University
  • University of Mississippi
  • Univ Nebraska
  • Princeton University
  • SUNY Buffalo
  • Columbia University
  • University of Rochester
  • SUNY Stony Brook
  • Brookhaven Natl Lab
  • Langston Univ
  • University of Oklahoma
  • Oklahoma State Univ
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  • Univ Texas Arlington
  • So Methodist Univ
  • Rice University
  • University of Virginia (UVA)
  • University of Washington
  • Radboud Univ Nijmegen
ISSN: 
0031-9007
Abstract: 
We present a study of mu mu mu mu, eeee, and mu mu ee events using 1 fb(-1) of data collected with the D0 detector at the Fermilab Tevatron p (p) over bar Collider at root s = 1.96 TeV. Requiring the lepton pair masses to be greater than 30 GeV, we observe one event, consistent with the expected background of 0.13 +/- 0.03 events and with the predicted standard model ZZ and Z gamma(*) production of 1.71 +/- 0.15 events. We set an upper limit on the ZZ and Z gamma(*) cross section of 4.4 pb at the 95% C.L. We also derive limits on anomalous neutral trilinear ZZZ and ZZ gamma(*) gauge couplings. The one-parameter 95% C.L. coupling limits with a form-factor scale Lambda = 1.2 TeV are -0.28 < f(40)(Z)< 0.28, -0.31 < f(50)(Z)< 0.29, -0.26 < f(40)(gamma)< 0.26, and -0.30 < f(50)(gamma)< 0.28.
Issue Date: 
4-Apr-2008
Citation: 
Physical Review Letters. College Pk: Amer Physical Soc, v. 100, n. 13, p. 7, 2008.
Time Duration: 
7
Publisher: 
Amer Physical Soc
Source: 
http://dx.doi.org/10.1103/PhysRevLett.100.131801
URI: 
http://hdl.handle.net/11449/24441
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/24441
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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