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Abstract <p>Charged-particle correlations in terms of charge balance functions (CBF) are studied within HYDJET++ model for nucleus–nucleus interactions at the energies of the Beam Energy Scan (BES) program at RHIC and NICA collider. It is shown that taking into account event-by-event conservation of the electric net-charge of produced particles together with finite values of isospin, strangeness, and baryon chemical potentials in the model, allows one to reproduce STAR/RHIC data on CBF pseudorapidity widths in Au <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11450_2025_3643_Article_IEq1.gif" Format="GIF" Height="13" Rendition="HTML" Resolution="72" Type="Linedraw" Width="14" /> </InlineMediaObject> <EquationSource Format="TEX">\(+\)</EquationSource> <!--NuclPhys2560112Chernyshov-m1--> </InlineEquation> Au collisions at center-of-mass energy per nucleon pair <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11450_2025_3643_Article_IEq2.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="92" /> </InlineMediaObject> <EquationSource Format="TEX">\(\sqrt{s_{NN}}=7.7\)</EquationSource> <!--NuclPhys2560112Chernyshov-m2--> </InlineEquation> and <InlineEquation ID="IEq3"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11450_2025_3643_Article_IEq3.gif" Format="GIF" Height="14" Rendition="HTML" Resolution="72" Type="Linedraw" Width="30" /> </InlineMediaObject> <EquationSource Format="TEX">\(11.5\)</EquationSource> <!--NuclPhys2560112Chernyshov-m3--> </InlineEquation> GeV. Based on the model results at RHIC energies, a prediction for CBF pseudorapidity widths for Bi <InlineEquation ID="IEq4"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11450_2025_3643_Article_IEq1.gif" Format="GIF" Height="13" Rendition="HTML" Resolution="72" Type="Linedraw" Width="14" /> </InlineMediaObject> <EquationSource Format="TEX">\(+\)</EquationSource> <!--NuclPhys2560112Chernyshov-m4--> </InlineEquation> Bi collisions at planned NICA energy of <InlineEquation ID="IEq5"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11450_2025_3643_Article_IEq5.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="92" /> </InlineMediaObject> <EquationSource Format="TEX">\(\sqrt{s_{NN}}=9.2\)</EquationSource> <!--NuclPhys2560112Chernyshov-m5--> </InlineEquation> GeV is made.</p>

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Modeling Charge Correlations in Nucleus–Nucleus Interactions at NICA and RHIC Energies

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • A. S. Chernyshov,
  • G. Kh. Eyyubova,
  • V. L. Korotkikh,
  • I. P. Lokhtin,
  • S. V. Petrushanko,
  • A. M. Snigirev,
  • E. E. Zabrodin

摘要

Abstract

Charged-particle correlations in terms of charge balance functions (CBF) are studied within HYDJET++ model for nucleus–nucleus interactions at the energies of the Beam Energy Scan (BES) program at RHIC and NICA collider. It is shown that taking into account event-by-event conservation of the electric net-charge of produced particles together with finite values of isospin, strangeness, and baryon chemical potentials in the model, allows one to reproduce STAR/RHIC data on CBF pseudorapidity widths in Au \(+\) Au collisions at center-of-mass energy per nucleon pair \(\sqrt{s_{NN}}=7.7\) and \(11.5\) GeV. Based on the model results at RHIC energies, a prediction for CBF pseudorapidity widths for Bi \(+\) Bi collisions at planned NICA energy of \(\sqrt{s_{NN}}=9.2\) GeV is made.