Artigo
Search for supersymmetry in di-photon final states at root s=1.96 TeV
Fecha
2008-02-07Registro en:
Physics Letters B. Amsterdam: Elsevier B.V., v. 659, n. 5, p. 856-863, 2008.
0370-2693
10.1016/j.physletb.2007.12.006
WOS:000253305900004
Autor
Florida State University
Univ Buenos Aires
Centro Brasileiro de Pesquisas Físicas (CBPF)
Universidade do Estado do Rio de Janeiro (UERJ)
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 Grenoble 1
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
FOM Inst NIKHEF
Univ Amsterdam
Radboud Univ Nijmegen
Joint Inst Nucl Res
Institute for Theoretical and Experimental Physics (ITEP)
Moscow MV Lomonosov State Univ
Inst High Energy Phys
Petersburg Nucl Phys Inst
Uppsala Univ
Lund Univ
Royal Inst Technol
Stockholm Univ
Univ Zurich
University of Lancaster
Univ London Imperial Coll Sci Technol & Med
University of Manchester
University of Arizona
Univ Calif Berkeley
Calif State Univ Fresno
University of California, Riverside (UCR)
Fermilab Natl Accelerator Lab
Univ Illinois
No Illinois Univ
Northwestern University (NU)
Univ Notre Dame
Purdue University Calumet
Iowa State Univ
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Brookhaven Natl Lab
Langston Univ
University of Oklahoma
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Brown University
Univ Texas Arlington
So Methodist Univ
Rice University
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Resumen
We report results of a search for supersymmetry (SUSY) with gauge-mediated symmetry breaking in di-photon events collected by the do experiment at the Fermilab Tevatron Collider in 2002-2006. In 1.1 fb(-1) of data, we find no significant excess beyond the background expected from the standard model and set the most stringent lower limits to date for a standard benchmark model on the lightest neutralino and chargino masses of 125 GeV and 229 GeV, respectively, at 95% confidence. (C) 2007 Elsevier B.V. All rights reserved.