  In this paper, we use the Gaussian distribution to analyze transverse
momentum spectra of K_0^S and K^(*0) at midrapidity in d +Au, Cu+Cu and p+p
Collisions at 200 GeV. The two-component Gaussian distribution can
approximately agree with the experimental data and the three-component
distribution can perfectly agree with the data in the given range. Moreover,
there is a significantly positive correlation between the temperature and the
collision centrality.
