Sadia Khalil, Kansas State University
"Searches for Vector-Like Quarks at CMS Experiment, at the LHC"

I will 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 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 decays result in a variety of 
final states, containing top and bottom quarks, gauge and Higgs bosons. 
I will present searches using several categories of reconstructed objects, 
from multi-leptonic to fully hadronic final states. At 8 TeV, we set 
exclusion limits on both the vector-like quark mass and pair-production 
cross sections, for combinations of the vector-like quark branching ratios. 
I will also present these searches using 13 TeV collision data.