Other top quark properties in CMS

Measurements of top-quark properties such as the first measurement of vector-boson production associated with top-quark pairs, the flavor contents in top-antitop events and constraints on the top-quark charge are presented. The analyses use proton-proton collision data recorded in 2011 with the CMS experiment at the LHC at a center-of-mass energy of $7\,$TeV. A signal for associated vector boson production with top-quark pairs is established in the exclusive $t\bar{t}Z$ trilepton channel and in the inclusive $t\bar{t}V$ same-sign dilepton channel. The respective cross sections are determined. %A normalized asymmetry of events categorized with a charge of either $+2/3\,$e or $-4/3\,$e is calculated. The fraction of top quarks decaying into a $W$ boson and a $b$ quark relative to all top-quark decays, $R=B(t\rightarrow Wb)/\sum(B(t\rightarrow Wq))$, is determined in the dilepton final state by counting the jets identified as $b$ jets, using a model that relies on the $b$-tagging and mistagging efficiencies. For the measurement of the top-quark charge, the top quark pair events are reconstructed in the muon+jets final state. Different top quark charge hypotheses ($+2/3\,$e or $-4/3\,$e) are discriminated by using charge correlations between high-$p_{\rm T}$ muons from the hard process and muons from $B$-hadron decays in $b$ jets. All results are consistent with SM predictions.