  A search has been made for massive resonances decaying into a quark and a
vector boson, qW or qZ, or a pair of vector bosons, WW, WZ, or ZZ, where each
vector boson decays to hadronic final states. This search is based on a data
sample corresponding to an integrated luminosity of 5.0 inverse femtobarns of
proton-proton collisions collected in the CMS experiment at the LHC in 2011 at
a center-of-mass energy of 7 TeV. For sufficiently heavy resonances the decay
products of each vector boson are merged into a single jet, and the event
effectively has a dijet topology. The background from QCD dijet events is
reduced using recently developed techniques that resolve jet substructure. A
95% CL lower limit is set on the mass of excited quark resonances decaying into
qW (qZ) at 2.38 TeV (2.15 TeV) and upper limits on the cross section for
resonances decaying to qW, qZ, WW, WZ, or ZZ final states.

High Energy Physics - Experiment