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Search for Dijet Resonances in 7 TeV pp Collisions at CMS
Journal article   Open access   Peer reviewed

Search for Dijet Resonances in 7 TeV pp Collisions at CMS

CMS Collaboration
Physics letters. B Nuclear, elementary particle and high-energy physics, Vol.704(3), pp.123-142
2011
DOI: 10.1016/j.physletb.2011.09.015
url
https://doi.org/10.1016/j.physletb.2011.09.015View
Published (Version of record) Open Access

Abstract

A search for narrow resonances with a mass of at least 1 TeV in the dijet mass spectrum is performed using pp collisions at √s = 7 TeV corresponding to an integrated luminosity of 1 fb−1, collected by the CMS experiment at the LHC. No resonances are observed. 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, and gluon–gluon pairs. The data exclude new particles predicted in the following models at the 95% confidence level: string resonances with mass less than 4.00 TeV, E6 diquarks with mass less than 3.52 TeV, excited quarks with mass less than 2.49 TeV, axigluons and colorons with mass less than 2.47 TeV, and W bosons with mass less than 1.51 TeV. These results extend previous exclusions from the dijet mass search technique.
Natural Sciences Physical Sciences Subatomic Physics

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