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The kinetic freeze-out temperatures, $T_0$, in nucleus-nucleus collisions atthe Relativistic Heavy Ion Collider (RHIC) and Large Hadron Collider (LHC)energies are extracted by four methods: i) the Blast-Wave model withBoltzmann-Gibbs statistics (the BGBW model), ii) the Blast-Wave model withTsallis statistics (the TBW model), iii) the Tsallis distribution with floweffect (the improved Tsallis distribution), and iv) the intercept in$T=T_0+am_0$ (the alternative method), where $m_0$ denotes the rest mass and$T$ denotes the effective temperature which can be obtained by differentdistribution functions. It is found that the relative sizes of $T_0$ in centraland peripheral collisions obtained by the conventional BGBW model which uses azero or nearly zero transverse flow velocity, $\beta_T$, are contradictory intendency with other methods. With a re-examination for $\beta_T$ in the firstmethod in which $\beta_T$ is taken to be $\sim(0.40\pm0.07)c$, a recalculationpresents a consistent result with others. Finally, our results show that thekinetic freeze-out temperature in central collisions is larger than that inperipheral collisions.

Kinetic freeze-out temperatures in central and peripheral collisions: Which one is larger?