A search for the standard model Higgs boson produced in association with a top quark pair is presented, using 19.6 fb−1 of 8 TeV pp collision data collected by the CMS experiment at the LHC. Final states with a Higgs boson that decays to either ZZ∗ ,WW∗, or ττ are required to have a top quark pair that decays either semileptonically or fully leptonically. The following signatures are selected: two isolated same-sign leptons (electrons or muons) plus b-tagged jets, three isolated leptons plus b-tagged jets, or four isolated leptons plus b-tagged jets.
