  We present a simple model for the dimuon production from the decay of vector
mesons which are hadronized from a baryon-free quark-gluon plasma. Continuous
decay of vector mesons in the medium is known to enhance the dimuon production
and in our model we can estimate the total yield of dimuons decayed from vector
mesons through the rate equations for the number of vector mesons of interest.
Muon pair production critically depends on the time duration of both the mixed
and hadronic phases. Results are discussed in view of possible measurements in
experiments.
