Search for dilepton resonances in pp collisions at √s = 7 TeV with the ATLAS detector
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Search for dilepton resonances in pp collisions at √s = 7 TeV with the ATLAS detector

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Search for dilepton resonances in pp collisions at √s = 7 TeV with the ATLAS detector

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ATLAS Collaboration; Mitsou, Vasiliki; Ferrer Soria, Antonio Perfil; Cabrera Urbán, Susana Perfil; Castillo Giménez, María Victoria Perfil; Valls Ferrer, Juan Antonio; Fuster Verdú, Juan A. Perfil; Ros Martínez, Eduardo; Fiorini, Luca; Hernández Jiménez, Yesenia; García García, Carmen Perfil; González de la Hoz, Santiago Perfil; Lacasta Llácer, Carlos; Higón Rodríguez, Emilio Perfil; Salt Cairols, José Perfil; Villaplana Pérez, Miguel; Martí García, Salvador
Aquest document és un/a article, creat/da en: 2011

Este documento está disponible también en : http://dx.doi.org/10.1103/PhysRevLett.107.272002
This Letter reports on a search for narrow high-mass resonances decaying into dilepton final states. The data were recorded by the ATLAS experiment in pp collisions at sqrt(s) = 7 TeV at the Large Hadron Collider and correspond to a total integrated luminosity of 1.08 (1.21) fb(-1) in the e(+)e(-) (mu(+)mu(-)) channel. No statistically significant excess above the standard model expectation is observed and upper limits are set at the 95% C. L. on the cross section times branching fraction of Z' resonances and Randall-Sundrum gravitons decaying into dileptons as a function of the resonance mass. A lower mass limit of 1.83 TeV on the sequential standard model Z' boson is set. A Randall-Sundrum graviton with coupling k/(M) over bar Pl = 0.1 is excluded at 95% C. L. for masses below 1.63 TeV.

    ATLAS Collaboration Mitsou, Vasiliko Ferrer Soria, Antonio Cabrera Urban, Susana Castillo Giménez, María Victoria Valls Ferrer, Juan Antonio Fuster Verdú, Juan a. Ros Martínez, Eduardo Fiorini, Luca Hernández Jiménez, Yesenia García García, Carmen Gonzalez de la Hoz, Santiago Lacasta Llácer, Carlos Higón Rodríguez, Emilio Salt Cairols, José Villaplana Pérez, Miguel Martí García, Salvador 2011 Search for dilepton resonances in pp collisions at √s = 7 TeV with the ATLAS detector Physical Review Letters 107 27 272002-1 272001-19
http://dx.doi.org/10.1103/PhysRevLett.107.272002
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