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Título

Search for Supersymmetry in pp Collisions at √s=7  TeV in Events with Two Photons and Missing Transverse Energy

AutorChatrchyan, S.; Brochero Cifuentes, J. A. ; Cabrillo, I. J. ; Calderon, Alicia; Chuang, S. H. ; Duarte Campderros, J. ; Felcini, Marta ; Fernández, M. ; Gómez, G. ; González Sánchez, J. ; Jorda, C. ; Lobelle Pardo, P. ; López Virto, A. ; Marco, Jesús ; Marco, Rafael ; Martínez-Rivero, Celso ; Matorras, Francisco ; Muñoz Sánchez, F. J. ; Piedra, Jonatan ; Rodrigo, Teresa ; Rodríguez Marrero, Ana Y. ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Sobron Sañudo, M. ; Vila, Iván ; Vilar, Rocío
Fecha de publicaciónmay-2011
EditorAmerican Physical Society
CitaciónPhysical Review Letters 106(21): 211802 (2011)
ResumenA 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.
Descripción15 páginas, 4 figuras, 1 tabla.-- PACS numbers: 12.60.Jv, 13.85.Rm, 14.80.Ly.-- Creative Commons Attribution 3.0 License.-- CMS Collaboration: et al.
Versión del editorhttp://dx.doi.org/10.1103/PhysRevLett.106.211802
URIhttp://hdl.handle.net/10261/46665
DOI10.1103/PhysRevLett.106.211802
ISSN0031-9007
E-ISSN1079-7114
Aparece en las colecciones: (IFCA) Artículos
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