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Search for pair-produced massive coloured scalars in four-jet final states with the ATLAS detector in proton-proton collisions at root s=7 TeV

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Search for pair-produced massive coloured scalars in four-jet final states with the ATLAS detector in proton-proton collisions at root s=7 TeV

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

Aquest document és un/a article, creat/da en: 2013

Este documento está disponible también en : 10.1140/epjc/s10052-012-2263-z

A search for pair-produced massive coloured scalar particles decaying to a four-jet final state is performed by the ATLAS experiment at the LHC in proton-proton collisions at sqrt(s) = 7 TeV. The analysed data sample corresponds to an integrated luminosity of 4.6 /fb. No deviation from the Standard Model is observed in the invariant mass spectrum of the two-jet pairs. A limit on the scalar gluon pair production cross-section of 70 pb (10 pb) is obtained at the 95% confidence level for a scalar gluon mass of 150 GeV (350 GeV). Interpreting these results as mass limits on scalar gluons, masses ranging from 150 GeV to 287 GeV are excluded at the 95% confidence level.

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