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Search for top quark partners with charge 5/3 in proton-proton collisions at sqrt(s) = 13 TeV (CROSBI ID 247143)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

(CMS Collaboration) Sirunyan, Albert ; ... ; Mesić, Benjamin ; Godinović, Nikola ; Puljak, Ivica ; Starodumov, Andrey ; Lelas, Damir ; Kovač, Marko ; Đurić, Senka ; Ferenček, Dinko et al. Search for top quark partners with charge 5/3 in proton-proton collisions at sqrt(s) = 13 TeV // The Journal of high energy physics, 08 (2017), 073, 43. doi: 10.1007/JHEP08(2017)073

Podaci o odgovornosti

Sirunyan, Albert ; ... ; Mesić, Benjamin ; Godinović, Nikola ; Puljak, Ivica ; Starodumov, Andrey ; Lelas, Damir ; Kovač, Marko ; Đurić, Senka ; Ferenček, Dinko ; Brigljević, Vuko ; Luetić, Jelena ; Antunović, Željko ; Kadija, Krešo ; Šuša, Tatjana ; ... ; Woods, Nate

CMS Collaboration

engleski

Search for top quark partners with charge 5/3 in proton-proton collisions at sqrt(s) = 13 TeV

A search for the production of heavy partners of the top quark with charge 5/3 (X[5/3]) decaying into a top quark and a W boson is performed with a data sample corresponding to an integrated luminosity of 2.3 inverse femtobarns, 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 X[5/3] 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 X[5/3] mass to date.

High energy physics, Experimental particle physics, LHC, CMS, Standard Model

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Podaci o izdanju

08

2017.

073

43

objavljeno

1029-8479

1029-8479

10.1007/JHEP08(2017)073

Povezanost rada

Fizika

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