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Search for top quark partners with charge 5/3 in proton-proton collisions at s√=13 TeV
Open access
Author
CMS Collaboration
Sirunyan, Albert M.
Bachmair, Felix
Bäni, L.
Bianchini, Lorenzo
Casal, Bruno
Dissertori, Günther
Dittmar, Michael
Donega, Mauro
Grab, Christophorus
Heidegger, Constantin
Hits, Dmitry
Hoss, Jan
Kasieczka, Gregor
Lustermann, Werner
Mangano, Boris
Marionneau, Matthieu
Martinez Ruiz del Arbol, Pablo
Masciovecchio, Mario
Meinhard, Maren T.
Meister, Daniel
Micheli, Francesco
Musella, Pasquale
Nessi-Tedaldi, Francesca
Pandolfi, Francesco
Pata, Joosep
Pauss, Felicitas
Perrin, Gaël
Perrozzi, Luca
Quittnat, Milena
Rossini, Marco
Schönenberger, Myriam
Starodumov, Andrey
Tavolaro, Vittorio R.
Theofilatos, Konstantinos
Wallny, Rainer
et al.
Date
2017-08Type
- Journal Article
Abstract
A search for the production of heavy partners of the top quark with charge 5/3 (X5/3) decaying into a top quark and a W boson is performed with a data sample corresponding to an integrated luminosity of 2.3 fb−1, collected in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. Final states with either a pair of same-sign leptons or a single lepton, along with jets, are considered. No significant excess is observed in the data above the expected standard model background contribution and an X5/3 quark with right-handed (left-handed) couplings is excluded at 95% confidence level for masses below 1020 (990) GeV. These are the first limits based on a combination of the same-sign dilepton and the single-lepton final states, as well as the most stringent limits on the X5/3 mass to date Show more
Permanent link
https://doi.org/10.3929/ethz-b-000191954Publication status
publishedJournal / series
Journal of High Energy PhysicsVolume
Pages
Publisher
SpringerSubject
Beyond Standard Model; Top physics; Exotics; Hadron-Hadron scattering (experiments)Organisational unit
03593 - Dissertori, Günther08803 - Grab, Christoph (Tit.Prof.)
03904 - Wallny, Rainer
03381 - Pauss, Felicitas (emeritus)
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