  Within the framework of intermittency analysis, a search for critical
fluctuations is ongoing to locate the possible critical point in the quantum
chromodynamics phase diagram. In this study, self-similar critical fluctuations
from a critical Monte Carlo (CMC) model have been incorporated into the cascade
ultrarelativistic quantum molecular dynamics (UrQMD) model. This hybrid
UrQMD+CMC model exhibits a clear power-law behavior of scaled factorial moment
for charged particles in Au+Au collisions at $\sqrt{s_\mathrm{NN}}$ = 7.7-200
GeV. By comparing the UrQMD+CMC model results with those from the STAR
experiment, it is found that the value of a calculated scaling exponent falls
in the range of the experimental measurement when 1-2 \% signal of
intermittency fluctuations is added into the UrQMD sample.
