Analysis of transverse momentum spectra of protons, deuterons, and tritons in symmetric heavy-ion collisions at ■= 200 GeV at the RHIC

The blast wave model with Tsallis statistics is used to analyze the transverse momentum spectra of protons(p), deuterons(d), and tritons(t) in √sNN= 200 GeV gold-gold(Au-Au) collisions at the RHIC in various centrality bins. In particular transverse momentum ranges, the model results closely match experimental data from the PHENIX(p) and STAR(d and t) collaborations. The data are compared with those of protons obtained in Cu+Cu collisions and deuterons and tritons in Ru+Ru collisions at a center of mass energy of 200 GeV from the STAR collaboration. Particle spectra are used to derive the kinetic freeze-out temperatures, transverse flow velocities, and freeze-out volumes. According to the findings, the kinetic freeze-out temperature increases from the central to peripheral collisions. In this transition, the transverse flow velocity and freeze-out volume both decrease. For the collisions of both collaborations, this study reveals mass-dependent kinetic freeze-out temperature and differential volume possibilities. Overall, the non-extensivity parameter q decreases with increasing centrality of the studied heavy-ion collisions, and heavier mass particles have smaller values of q, which implies higher degrees of thermalization and equilibrium in more central collisions and for heavier particles.