Artículos de revistas
Search for Supersymmetry in pp Collisions at root s=7 TeV in Events with Two Photons and Missing Transverse Energy
Fecha
2011-05-24Registro en:
Physical Review Letters. College Pk: Amer Physical Soc, v. 106, n. 21, p. 15, 2011.
0031-9007
10.1103/PhysRevLett.106.211802
WOS:000290895300002
WOS000290895300002.pdf
Autor
Yerevan Phys Inst
Inst Hochenergiephys OeAW
Natl Ctr Particle & High Energy Phys
Univ Antwerp
Vrije Univ Brussel
Univ Ghent
Univ Libre Brussels
Catholic Univ Louvain
Univ Mons
Centro Brasileiro de Pesquisas Físicas (CBPF)
Univ Estado Rio de Janeiro
Purdue Univ
Purdue University Calumet
Rice University
University of Rochester
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Tech Univ Split
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Texas Tech Univ
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Universidade Federal do ABC (UFABC)
Suez Canal Univ
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Rudjer Boskovic Inst
Univ Haute Alsace
Joint Inst Nucl Res
Scuola Normale & Sez
Gaziosmanpasa Univ
Adiyaman Univ
Mersin Univ
Izmir Inst Technol
Kafkas Univ
Suleyman Demirel Univ
Ist Nazl Fis Nucl
Ege Univ
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Petersburg Nucl Phys Inst
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Charles Univ Prague
Acad Sci Res & Technol Arab Republ Egypt
NICPB
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Kangwon Natl Univ
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Lappeenranta Univ Technol
CNRS
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Russian Acad Sci
Ecole Polytech
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IN2P3
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Tbilisi State Univ
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DESY
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Institute for Theoretical and Experimental Physics (ITEP)
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Inst Nucl Phys Demokritos
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KFKI Res Inst Particle & Nucl Phys
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Panjab Univ
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Tata Inst Fundamental Res EHEP
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CIEMAT
Lab Instrumentacao & Fis Expt Particulas
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Institución
Resumen
A search for supersymmetry in the context of general gauge-mediated breaking with the lightest neutralino as the next-to-lightest supersymmetric particle and the gravitino as the lightest is presented. The data sample corresponds to an integrated luminosity of 36 pb(-1) recorded by the CMS experiment at the LHC. The search is performed by using events containing two or more isolated photons, at least one hadronic jet, and significant missing transverse energy. No excess of events at high missing transverse energy is observed. Upper limits on the signal cross section for general gauge-mediated supersymmetry between 0.3 and 1.1 pb at the 95% confidence level are determined for a range of squark, gluino, and neutralino masses, excluding supersymmetry parameter space that was inaccessible to previous experiments.