Search for neutral color-octet weak-triplet scalar particles in proton-proton collisions at √ s = 8 TeV
Name
Search for neutral.pdf
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1.88 MB
Format
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Checksum (MD5)
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Author(s)
Apyan, Aram
Barbieri, Richard Alexander
Baty, Austin Alan
Bierwagen, Katharina
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
Di Matteo, Leonardo
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Date Issued
September 2015
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag/SISSA
Citation
The CMS collaboration et al. “Search for Neutral Color-Octet Weak-Triplet Scalar Particles in Proton-Proton Collisions at √s = 8 TeV.” Journal of High Energy Physics 2015.9 (2015): n. pag.
Version
Final published version
Abstract
A search for pair production of neutral color-octet weak-triplet scalar particles (Θ[superscript 0]) is performed in processes where one Θ[superscript 0] decays to a pair of b quark jets and the other to a Z boson plus a jet, with the Z boson decaying to a pair of electrons or muons. The search is performed with data collected by the CMS experiment at the CERN LHC corresponding to an integrated luminosity of 19.7 fb[superscript −1] of proton-proton collisions at s√=8 TeV. The number of observed events is found to be in agreement with the standard model predictions. The 95% confidence level upper limit on the product of the cross section and branching fraction is obtained as a function of the Θ[superscrip 0] mass. The 95% confidence level lower bounds on the Θ[superscript 0] mass are found to be 623 and 426 GeV, for two different octo-triplet theoretical scenarios. These are the first direct experimental bounds on particles predicted by the octo-triplet model.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 4.0 International License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/JHEP09(2015)201
