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Abstract <p>A comparison of the results obtained from event generators EPOS4, UrQMD 3.4 (LHC), and PHQMD is performed using the simulation of <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(pp\)</EquationSource> <!--PhysPart2570144Razmyslov-m1--> </InlineEquation> collisions at ultra-high energies (7 TeV), as well as UrQMD and PHQMD for Xe–W collisions. Violations of energy, baryon, and electric charge conservation laws in EPOS4 are demonstrated. It is shown that, despite the fulfillment of these laws in PHQMD for <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(pp\)</EquationSource> <!--PhysPart2570144Razmyslov-m2--> </InlineEquation> collisions, the energy conservation law is violated for ion-ion collisions within a range of 10% of the collision energy considered. A comparison with experimental data is carried out, and the effect of event filtering based on the fulfillment of conservation laws is studied.</p>

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On Applicability of EPOS4, UrQMD (LHC), and PHQMD Event Generators for Event Analysis in High Energy Physics

  • 期刊论文

  • 发表日期：

    2026年5月25日

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  • K. V. Razmyslov,
  • V. V. Monakhov,
  • F. F. Valiev,
  • M. A. Zharov,
  • K. A. Galaktionov

摘要

Abstract

A comparison of the results obtained from event generators EPOS4, UrQMD 3.4 (LHC), and PHQMD is performed using the simulation of \(pp\) collisions at ultra-high energies (7 TeV), as well as UrQMD and PHQMD for Xe–W collisions. Violations of energy, baryon, and electric charge conservation laws in EPOS4 are demonstrated. It is shown that, despite the fulfillment of these laws in PHQMD for \(pp\) collisions, the energy conservation law is violated for ion-ion collisions within a range of 10% of the collision energy considered. A comparison with experimental data is carried out, and the effect of event filtering based on the fulfillment of conservation laws is studied.