Search for resonances in the dijet mass spectrum from 7 TeV pp collisions at CMS

Search for resonances in the dijet mass spectrum from 7 TeV pp collisions at CMS

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% co...

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Bibliographic Details
Main Authors: 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, Goncharov, Maxim, Hahn, Kristian Allan, Harris, Philip Coleman, Klute, Markus, Lee, Yen-Jie, Ma, Teng, Nahn, Steven, Paus, Christoph M. E., Ralph, Duncan Kelley, Rudolph, Matthew Scott, Stephans, George S. F., Stoeckli, Fabian, Sung, Kevin Kai Hong, Velicanu, Dragos Alexandru, Wenger, Edward Allen, Xie, Si, Yang, Mingming, Yilmaz, Yetkin, Zanetti, Marco, Bauer, Gerry P, Kim, Y., Li, W., Loizides, Constantinos, Luckey Jr, P David, Roland, Christof E, Roland, Gunther M, Sumorok, Konstanty C, Wolf, Roger, Yoon, A. S.
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: Elsevier B.V. 2014
Online Access:http://hdl.handle.net/1721.1/92470
https://orcid.org/0000-0002-3831-9071
https://orcid.org/0000-0003-3106-4894
https://orcid.org/0000-0001-6332-5839
https://orcid.org/0000-0001-8983-2169
https://orcid.org/0000-0002-1260-777X
https://orcid.org/0000-0002-6047-4211
https://orcid.org/0000-0003-2593-7767
https://orcid.org/0000-0002-0869-5631
Description
Summary: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.

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