Jul 5 – 12, 2017
Venice, Italy
Europe/Zurich timezone
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Search for vector-like quarks and excited quarks at CMS

Jul 8, 2017, 11:45 AM
Sala Perla (Palazzo del Casinò)

Sala Perla

Palazzo del Casinò

Parallel Talk Higgs and New Physics Higgs and new physics


Giorgia Rauco (Universitaet Zuerich (CH))


We present results of searches for massive top and bottom quark partners using proton-proton collision data collected with the CMS detector at the CERN LHC at a center-of-mass energy of 8 and 13 TeV. These fourth-generation vector-like quarks are postulated to solve the Hierarchy problem and stabilize the Higgs mass, while escaping constraints on the Higgs cross section measurement. The vector-like quark can be produced singly or in pair and their decays result in a variety of final states, containing top and bottom quarks, gauge and Higgs bosons. We search using several categories of reconstructed objects, from multi-leptonic to fully hadronic final states. We set exclusion limits on both the vector-like quark mass and cross sections, for combinations of the vector-like quark branching ratios.

Experimental Collaboration CMS

Primary author

Presentation materials