  A search is performed for a new resonance decaying into a lighter resonance
and a Z boson. Two channels are studied, targeting the decay of the lighter
resonance into either a pair of oppositely charged tau leptons or a b b-bar
pair. The Z boson is identified via its decays to electrons or muons. The
search exploits data collected by the CMS experiment at a centre-of-mass energy
of 8 TeV, corresponding to an integrated luminosity of 19.8 inverse femtobarns.
No significant deviations are observed from the standard model expectation and
limits are set on production cross sections and parameters of two-Higgs-doublet
models.
