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In high energy nucleus-nucleus collisions, it is difficult to measure thecontributions of resonance strong decay and weak decay to the final measuredhadrons as well as the corresponding effects on some physical observables. Toprovide a reference from statistical thermal model, we performed a systematicanalysis for the energy dependence of particle yield and yield ratios in Au +Au collisions. We found that the primary fraction of final hadrons decreaseswith increasing collision energy and somehow saturates around$\sqrt{s_\textrm{NN}}$ = 10 GeV, indicating a limiting temperature in hadronicinteractions. The fraction of strong or weak decay for final hadrons show adifferent energy dependence behavior comparing to the primarily producedhadrons. These energy dependences of various particle yield and yield ratiosfrom strong or weak decay can provide us with baselines for many hadronicobservables in high energy nucleus-nucleus collisions.

Particle decay from statistical thermal model in high energy nucleus-nucleus collision