A search for diphoton events with large missing transverse energy is presented. The data were collected with the ATLAS detector in proton-proton collisions at √s=7TeV at the CERN Large Hadron Collider and correspond to an integrated luminosity of 3.1pb - 1. No excess of such events is observed above the standard model background prediction. In the context of a specific model with one universal extra dimension with compactification radius R and gravity-induced decays, values of 1/R<729GeV are excluded at 95% C. L., providing the most sensitive limit on this model to date. © 2011 CERN, for the ATLAS Collaboration.
Documento: | Artículo |
Título: | Search for diphoton events with large missing transverse energy in 7 TeV proton-proton collisions with the ATLAS detector |
Autor: | Multitudinario:3047 |
Filiación: | University at Albany, 1400 Washington Ave, Albany, NY 12222, United States University of Alberta, Department of Physics, Centre for Particle Physics, Edmonton, AB T6G 2G7, Canada Ankara University, Faculty of Sciences, Department of Physics, TR 061000 Tandogan, Ankara, Turkey Dumlupinar University, Faculty of Arts and Sciences, Department of Physics, Kutahya, Turkey Gazi University, Faculty of Arts and Sciences, Department of Physics, 06500, Teknikokullar, Ankara, Turkey TOBB University of Economics and Technology, Faculty of Arts and Sciences, Division of Physics, 06560, Sogutozu, Ankara, Turkey Turkish Atomic Energy Authority, 06530, Lodumlu, Ankara, Turkey LAPP, Université de Savoie, CNRS/IN2P3, Annecy-le-Vieux, France Argonne National Laboratory, High Energy Physics Division, 9700 S. 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Main Street, Columbia, SC 29208, United States Platanenallee 6, D-15738 Zeuthen, Germany Tbilisi State University, HEP Institute, University St. 9, GE - 380086 Tbilisi, Georgia Dept. Física At. Mol. y Nuclear, Univ. of Valencia, Spain Inst. de Microelectrónica de Barcelona (IMB-CNM-CSIC), 08193 Bellaterra, Spain |
Palabras clave: | ATLAS detectors; Background prediction; Compactification; Diphoton events; Induced decay; Integrated luminosity; Large Hadron Collider; Proton proton collisions; The standard model; Transverse energy; Universal extra dimensions; High energy physics; Protons |
Año: | 2011 |
Volumen: | 106 |
Número: | 12 |
DOI: | http://dx.doi.org/10.1103/PhysRevLett.106.121803 |
Título revista: | Physical Review Letters |
Título revista abreviado: | Phys Rev Lett |
ISSN: | 00319007 |
CODEN: | PRLTA |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v106_n12_p_Multitudinario |