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Search for Massive Colored Scalars in Four-Jet Final States in sqrt{s}=7 TeV proton-proton collisions with the ATLAS Detector

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Search for Massive Colored Scalars in Four-Jet Final States in sqrt{s}=7 TeV proton-proton collisions with the ATLAS Detector

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ATLAS Collaboration; Mitsou, Vasiliki; Ferrer Soria, Antonio; Cabrera Urbán, Susana; Castillo Giménez, María Victoria; Costa Mezquita, María José; Valls Ferrer, Juan Antonio; Fuster Verdú, Juan A.; Fiorini, Luca; Ros Martínez, Eduardo; García García, Carmen; González de la Hoz, Santiago; Hernández Jiménez, Yesenia; Higón Rodríguez, Emilio; Irles Quiles, Adrián; Kaci, Mohammed; Lacasta Llácer, Carlos; Salt Cairols, José; Martí García, Salvador; Villaplana Pérez, Miguel

Aquest document és un/a article, creat/da en: 2011

Este documento está disponible también en : 10.1140/epjc/s10052-011-1828-6

A search for pair-produced scalar particles decaying to a four-jet final state is presented. The analysis is performed using an integrated luminosity of 34 pb(-1) recorded by the ATLAS detector in 2010. No deviation from the Standard Model is observed. For a scalar mass of 100 GeV (190 GeV) the limit on the scalar gluon pair production cross section at 95% confidence level is 1 nb (0.28 nb). When these results are interpreted as mass limits, scalar-gluons (hyperpions) with masses of 100 to 185 GeV (100 to 155 GeV) are excluded at 95% confidence level with the exception of a mass window of width about 5 GeV (15 GeV) around 140 GeV.

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