Search for top quark partners with charge 5/3 in the same-sign dilepton and single-lepton final states in proton-proton collisions at [radical]s 2019= 13 TeV
Name
Sirunyan2019_Article_SearchForTopQuarkPartnersWithC.pdf
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889.35 KB
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Adobe PDF
Checksum (MD5)
f3ac8b636656d9ee29ff71f219785aa1
Date Issued
March 2019
Journal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
Sirunyan, A.M., Tumasyan, A., Adam, W. et al. Search for top quark partners with charge 5/3 in the same-sign dilepton and single-lepton final states in proton-proton collisions at 𝑠√=13 TeV. J. High Energ. Phys. 2019, 82 (2019). © 2019 CERN,for the bene t of the CMS Collaboration
Version
Final published version
Abstract
A search for the pair production of heavy fermionic partners of the top quark with charge 5/3 (X5/3) is performed in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. The data sample analyzed corresponds to an integrated luminosity of 35.9 fb−1. The X5/3 quark is assumed always to decay into a top quark and a W boson. Both the right-handed and left-handed X5/3 couplings to the W boson are considered. Final states with either a pair of same-sign leptons or a single lepton are studied. No significant excess of events is observed above the expected standard model background. Lower limits at 95% confidence level on the X5/3 quark mass are set at 1.33 and 1.30 TeV respectively for the case of right-handed and left-handed couplings to W bosons in a combination of the same-sign dilepton and single-lepton final states.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.1007/JHEP03(2019)082
