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This research investigates the chemical freeze-out curve in ultra-relativistic nucleus-nucleus collisions, utilizing particle ratios within the van der Waals hadron resonance gas (VDWHRG) framework to achieve a comprehensive understanding. By systematically analyzing experimental data spanning SPS, RHIC, and LHC energy ranges, the freeze-out parameters are meticulously extracted through a best-fit procedure, establishing a detailed correlation between temperature and chemical potential across varying collision energies. The findings are further contrasted with the latest statistical thermal model predictions, offering deeper insights into the intricate mechanisms governing hadron production, as well as the thermodynamic freeze-out conditions that characterize heavy-ion collision systems.

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A Study of Chemical Freeze-Out in Ultra-Relativistic Nucleus-Nucleus Collisions Using the van der Waals Type Model Approach

  • 会议论文

  • 发表日期：

    2025年

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  • Iqbal Mohi Ud Din,
  • Saeed Uddin,
  • Rameez Ahmad Parra,
  • Sameer Ahmad Mir,
  • Nasir Ahmad Rather,
  • Waseem Bashir

摘要

This research investigates the chemical freeze-out curve in ultra-relativistic nucleus-nucleus collisions, utilizing particle ratios within the van der Waals hadron resonance gas (VDWHRG) framework to achieve a comprehensive understanding. By systematically analyzing experimental data spanning SPS, RHIC, and LHC energy ranges, the freeze-out parameters are meticulously extracted through a best-fit procedure, establishing a detailed correlation between temperature and chemical potential across varying collision energies. The findings are further contrasted with the latest statistical thermal model predictions, offering deeper insights into the intricate mechanisms governing hadron production, as well as the thermodynamic freeze-out conditions that characterize heavy-ion collision systems.