Search for a Heavy Top-like Quark Pairs at CMS in pp Collisions

We present a search for pair-produced top-like quarks, T, in pp collisions at a center-of-mass energy of $7\TeV$ performed by the CMS experiment at the LHC. Events consistent with the flavor changing neutral current decay of a T quark to a top quark and a Z boson are selected requiring two leptons from the Z~decay as well as an additional isolated, charged lepton. With an integrated luminosity of 191 pb$^{-1}$, no signal excess beyond the standard model background prediction is observed. Assuming a branching fraction of 100\% for the decay $\rm T \to tZ$, a T quark with mass less than 417 GeV/$c^2$ is excluded at a 95\% confidence level.