Thermal Freeze-Out Parameters and Pseudoentropy from Charged Hadron Spectra in High-Energy Collisions

We collected the transverse momentum (mass) spectra of charged hadrons ($\pi^{-}$, $\pi^{+}$, $K^{-}$, $K^{+}$, $\overline{p}$, and $p$) produced in collisions over a center-of-mass energy range from 2.70 to 200 GeV (per nucleon pair). The modified Tsallis--Pareto-type function (the TP-like function) with average flow velocity is used describe contribution participant or constituent quarks considered hadron. experimental $\pi^{\mp}$ $K^{\mp}$ (or $\overline{p}$ are fitted by convolution two three) functions due fact that regarded as resources formation From reasonable fits spectra, thermal freeze-out parameters extracted, pseudo-entropy newly defined extracted. Some quickly change less than 7.7 GeV, slowly greater indicating variation collision mechanism at around GeV.