Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7929
Title: 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
Authors: Karapınar, Güler
CMS Collaboration
Keywords: Beyond Standard Model
Hadron-Hadron scattering (experiments)
Top physics
Issue Date: 2019
Publisher: Springer Verlag
Abstract: A search for the pair production of heavy fermionic partners of the top quark with charge 5/3 (X 5/3 ) 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 X 5/3 quark is assumed always to decay into a top quark and a W boson. Both the right-handed and left-handed X 5/3 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 X 5/3 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.[Figure not available: see fulltext.] © 2019, The Author(s).
URI: https://doi.org/10.1007/JHEP03(2019)082
https://hdl.handle.net/11147/7929
ISSN: 1029-8479
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

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