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

Authors:Chatrchyan, S.
Brochero Cifuentes, J. A.
Cabrillo, I. J.
Calderón, A.
Chuang, S. H.
Duarte Campderros, J.
Felcini, M.
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
Rodriguez Marrero, Ana Y.
Ruiz Jimeno, Alberto
Scodellaro, Luca
Sobron Sañudo, M.
Vila, Iván
Vilar, Rocío
Issue Date:May-2011
Publisher:American Physical Society
Citation:Physical Review Letters 106(21): 211802 (2011)
Abstract: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.
Description:15 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.
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevLett.106.211802
URI:http://hdl.handle.net/10261/46665
ISSN:0031-9007
E-ISSNmetadata.dc.identifier.doi = DOI:1079-7114
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Appears in Collections:(IFCA) Artículos

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