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      Freeze-out Properties of Different Strange Hadrons from {\auau} Collisions at {\sqrtsNN}~= 54.4 GeV

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          Abstract

          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 (\(T_0\)) and transverse flow velocity (\(\beta_T\)) 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 \(T\), \(\beta_T\) and mean {\ppt} (\(\langle p_T \rangle\)) shows decreasing trend as we go from central collisions to peripheral collisions. The entropy parameter \(q\) increases from central to peripheral collisions.

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          Author and article information

          Journal
          28 August 2022
          Article
          2208.13274
          2c83ce6b-6e1d-48ce-9578-d3ab03600297

          http://creativecommons.org/licenses/by-nc-sa/4.0/

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          Custom metadata
          10 pages, 5 figures, 3 tables
          hep-ph

          High energy & Particle physics
          High energy & Particle physics

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