Search for Top-Quark Partners with Charge 5/3 in the Same-Sign Dilepton Final State (CROSBI ID 213441)
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Podaci o odgovornosti
Chatrchyan, S. ; ... ; Godinović, Nikola ; Lelas, Damir ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Luetić, Jelena ; Mekterović, Darko ; Morović, Srećko ; Tikvica, Lucija ; ... ; Swanson, J.
engleski
Search for Top-Quark Partners with Charge 5/3 in the Same-Sign Dilepton Final State
A search for the production of heavy partners of the top quark with charge 5/3 is performed in events with a pair of same-sign leptons. The data sample corresponds to an integrated luminosity of 19.5 fb−1 and was collected at √s=8 TeV by the CMS experiment. No significant excess is observed in the data above the expected background, and the existence of top-quark partners with masses below 800 GeV is excluded at a 95% confidence level, assuming they decay exclusively to tW. This is the first limit on these particles from the LHC, and it is significantly more restrictive than previous limits.
CERN; CMS; New Physics; Charge; Dileptons
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Podaci o izdanju
112
2014.
171801-1-171801-16
objavljeno
0031-9007
10.1103/PhysRevLett.112.171801
