Search for Dijet Resonances in 7 TeV pp Collisions at CMS

Volker Adler, Stephanie Beauceron, Stijn Blyweert, Jorgen D'Hondt, Olivier Devroede, Alexis Kalogeropoulos, Joris Maes, Michael Maes, Stefaan Tavernier, Walter Van Doninck, Petra Van Mulders, Ilaria Villella

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A search for narrow resonances in the dijet mass spectrum is performed using data corresponding to an integrated luminosity of 2.9 inverse pb collected by the CMS experiment at the LHC. Upper limits at the 95% confidence level (CL) 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% CL: 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.
Original languageEnglish
Article number211801
Number of pages24
JournalPhys.Rev.Lett.
Volume105
Publication statusPublished - 2011

Keywords

  • jet : pair production
  • string : resonance
  • CMS
  • narrow resonance : search for
  • mass spectrum : (2jet)
  • CERN LHC Coll
  • p p : interaction
  • channel cross section : branching ratio
  • upper limit
  • acceptance
  • quark : excited state
  • axigluon
  • coloron
  • diquark : scalar
  • graviton
  • experimental results

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