Search for resonances in the dijet mass spectrum from 7 TeV pp collisions at CMS
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Chatrchyan-2011-Search for resonance.pdf
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Author(s)
CMS Collaboration
Alver, Burak Han
Bendavid, Joshua L.
Busza, Wit
Butz, Erik M.
Cali, Ivan Amos
Chan, M.
Dutta, Valentina
Everaerts, Pieter Bruno Bart
Gomez-Ceballos, Guillelmo
Date Issued
October 2011
Journal
Physics Letters B
Publisher
Elsevier B.V.
Citation
Chatrchyan, S., V. Khachatryan, A.M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Search for Resonances in the Dijet Mass Spectrum from 7 TeV Pp Collisions at CMS.” Physics Letters B 704, no. 3 (October 2011): 123–142.
Version
Final published version
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[superscript −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′W′ bosons with mass less than 1.51 TeV. These results extend previous exclusions from the dijet mass search technique.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1016/j.physletb.2011.09.015
