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Applying a quark combination model for the hadronization of Quark GluonPlasma (QGP) and A Relativistic Transport (ART) model for the subsequenthadronic rescattering process, we investigate the production of $K^{*0}$ and$\Sigma^*$ resonances in central Au+Au collisions at $\sqrt{s_{NN}}=$ 200 GeVand 62.4 GeV. The initial $K^{*0}$ produced via hadronization is higher thanthe experimental data in the low $p_T$ region and is close to the data at 2-3GeV/c. We take into account the hadronic rescattering effects which lead to astrong suppression of $K^{*0}$ with low $p_T$, and find that the $p_T$ spectrumof $K^{*0}$ can be well described. According to the suppressed magnitude of$K^{*0}$ yield, the time span of hadronic rescattering stage is estimated to beabout 13 fm/c at 200 GeV and 5 fm/c at 62.4 GeV. The $p_T$ spectrum of$\Sigma^*$ directly obtained by quark combination hadronization in centralAu+Au collisions at 200 GeV is in well agreement with the experimental data,which shows a weak hadronic rescattering effects. The elliptic flow v2 of$\Sigma^*$ in minimum bias Au+Au collisions at 200 GeV and $p_T$ spectrum of$\Sigma^*$ at lower 62.4 GeV are predicted.

$K^{*0}$ and $\Sigma^*$ production in Au+Au collisions at $\sqrt{s_{NN}}=$ 200 GeV and 62.4 GeV

$K^{0}$ and $\Sigma^$ production in Au+Au collisions at $\sqrt{s_{NN}}=$ 200 GeV and 62.4 GeV