  Dynamical fluctuations in global conserved quantities such as baryon number,
strangeness, or charge may be observed near a QCD critical point. Results from
new measurements of dynamical $K/\pi$ and $p/\pi$ ratio fluctuations are
presented. The commencing of a QCD critical point search at RHIC has extended
the reach of possible measurements of dynamical $K/\pi$ and $p/\pi$ ratio
fluctuations from Au+Au collisions to lower energies. The STAR experiment has
performed a comprehensive study of the energy dependence of these dynamical
fluctuations in Au+Au collisions at the energies $\sqrt{s_{NN}}$ = 7.7, 11.5,
and 39 GeV. New results are compared to previous measurements and to
theoretical predictions from several models.

Nuclear Experiment