A search for narrow resonances in the dijet mass spectrum is performed using data corresponding to an integrated luminosity of 2.9 pb(-1) collected by the CMS experiment at the Large Hadron Collider. Upper limits at the 95% confidence level are presented on the product of the resonance cross section, branching fraction into dijets, and acceptance, separately for decays into quark-quark, quark-gluon, or gluon-gluon pairs. The data exclude new particles predicted in the following models at the 95% confidence level: string resonances, with mass less than 2.50 TeV, excited quarks, with mass less than 1.58 TeV, and axigluons, colorons, and E(6) diquarks, in specific mass intervals. This extends previously published limits on these models.

Search for Dijet Resonances in 7 TeV pp Collisions at CMS

BELLAN, PAOLO;BISELLO, DARIO;BRANCA, ANTONIO;CARLIN, ROBERTO;DE MATTIA, MARCO;GASPARINI, FABRIZIO;GIUBILATO, PIERO;MARGONI, MARTINO;MENEGUZZO, ANNA TERESA;NESPOLO, MASSIMO;PERROZZI, LUCA;POZZOBON, NICOLA;RONCHESE, PAOLO;SIMONETTO, FRANCO;TOSI, MIA;A. Triossi;VANINI, SARA;ZOTTO, PIERLUIGI;M. Grassi;ROSSIN, ROBERTO;
2010

Abstract

A search for narrow resonances in the dijet mass spectrum is performed using data corresponding to an integrated luminosity of 2.9 pb(-1) collected by the CMS experiment at the Large Hadron Collider. Upper limits at the 95% confidence level are presented on the product of the resonance cross section, branching fraction into dijets, and acceptance, separately for decays into quark-quark, quark-gluon, or gluon-gluon pairs. The data exclude new particles predicted in the following models at the 95% confidence level: string resonances, with mass less than 2.50 TeV, excited quarks, with mass less than 1.58 TeV, and axigluons, colorons, and E(6) diquarks, in specific mass intervals. This extends previously published limits on these models.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2481863
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