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One of the primary objectives of the Compressed Baryonic Matter (CBM) experiment at the Facility for Antiproton and Ion Research (FAIR) is to unravel the underlying properties of the quark-gluon plasma (QGP) and Quantum Chromodynamics (QCD) phase diagram at high baryonic density. Fluctuations of conserved quantities like net-baryon (B), net-charge (Q), and net-strangeness (S) are key observables in the search for the QCD phase transition and the critical point, as they are directly linked to the ratios of thermodynamic susceptibilities calculated in lattice QCD studies. This work mainly focuses on the fluctuation study of net-kaon which serves as proxies for net-strangeness in Au+Au collisions at \(\sqrt{s_{NN}}\) = 3.5–19.6 GeV using Parton-Hadron-Quantum-Molecular-Dynamics (PHQMD) model generated data. PHQMD model results are compared with previous experimental results, providing insights into the effects probing potential critical behaviors near the critical end point in the CBM energy range.

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Study of Net-Kaon Fluctuations at FAIR Energies Using the PHQMD Model

  • 会议论文

  • 发表日期：

    2025年

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  • Rudrapriya Das,
  • Anjali Sharma,
  • Susanne Glaessel,
  • Supriya Das

摘要

One of the primary objectives of the Compressed Baryonic Matter (CBM) experiment at the Facility for Antiproton and Ion Research (FAIR) is to unravel the underlying properties of the quark-gluon plasma (QGP) and Quantum Chromodynamics (QCD) phase diagram at high baryonic density. Fluctuations of conserved quantities like net-baryon (B), net-charge (Q), and net-strangeness (S) are key observables in the search for the QCD phase transition and the critical point, as they are directly linked to the ratios of thermodynamic susceptibilities calculated in lattice QCD studies. This work mainly focuses on the fluctuation study of net-kaon which serves as proxies for net-strangeness in Au+Au collisions at \(\sqrt{s_{NN}}\) = 3.5–19.6 GeV using Parton-Hadron-Quantum-Molecular-Dynamics (PHQMD) model generated data. PHQMD model results are compared with previous experimental results, providing insights into the effects probing potential critical behaviors near the critical end point in the CBM energy range.