Transverse momentum distributions of strange hadrons produced in nucleus?nucleus collisions at $\sqrt{\mathrm{\it s_{NN}}}=62.4$ and 200 GeV

The transverse momentum distributions of strange particles produced in high-energy collisions are analyzed by the thermalized cylinder model. We present a detailed comparison with the experimental data of Cu+Cu and Au+Au collisions at = 62.4 and 200 GeV. It is found that the calculated results are in agreement with the experimental data. The excitation degree of an emission source on the central axis of the cylinder increases obviously with increasing collision centrality and incident energy. There is no obvious change in the excitation degree of the emission source in the side-surface of the cylinder.