2022/08/28 by Ashraf, M. U., Tariq, Junaid, Ikram, Sumaira +1
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)
paper · doi:10.48550/arxiv.2208.13274
We analyzed the transverse momentum \ppt spectra of different particle species containing strange quark \ks, \lam (\alam) and \xim (\axi) in different centrality intervals at mid-rapidity (y) from \auau collisions at \sqrtsNN= 54.4 GeV. The \ppt spectra of these strange hadrons are investigated by Tsallis-like distribution. The Tsallis-like distribution satisfactorily fits the experimental data. The effective temperature, entropy based parameter q and mean \ppt extracted from the Tsallis-like distribution function while the kinetic freeze-out temperature (T0) and transverse flow velocity (βT) are extracted by an alternative method. The effective temperature, entropy based parameter q and mean \ppt are found to be strongly dependent on centrality. The effective temperature of multi-strange particle (\xim (\axi)) is larger as compared to singly-strange particles \lam (\alam) and \ks. Furthermore, the extracted parameters from alternative approach decreases from central collisions to peripheral collisions, except the parameter q which shows an opposite behaviour. A mass dependent kinetic freeze-out scenario is observed as the effective flow is larger for massive particles than the lighter one. Furthermore, the T, βT and mean \ppt (⟨ pT ⟩) shows decreasing trend as we go from central collisions to peripheral collisions. The entropy parameter q increases from central to peripheral collisions.