Particle Production in AgAg Collisions at $E_{\mathrm{Kin}}=1.58A$ GeV within a Hadronic Transport Approach

Abstract

Heavy-ion collisions at low beam energies explore the high density regime of strongly-interacting matter. The dynamical evolution of these collisions can be successfully described by hadronic transport approaches. In March 2019, the HADES collaboration has taken data for AgAg collisions at $E_{\mathrm{Kin}}=1.58A$ GeV and in this work, we provide predictions for particle production and spectra within the Simulating Many Accelerated Strongly-interacting Hadrons (SMASH) approach. The multiplicities and spectra of strange and non-strange particles follow the expected trends as a function of system size. In particular, in AuAu collisions, much higher yields of double-strange baryons were observed experimentally than expected from a thermal model. Therefore, we incorporate a previously suggested mechanism to produce $\Xi$ baryons via rare decays of high mass $N^{\ast }$ resonances and predict the multiplicities. In addition, we predict the invariant mass spectrum for dilepton emission and explore the most important sources of dileptons above 1 GeV, that are expected to indicate the temperature of the medium. Interestingly, the overall dilepton emission is very similar to the one in AuAu collisions at $1.23A$ GeV, a hint that the smaller system at a higher energy behaves very similar to the larger system at lower beam energy.

arXiv comment13 pages, 13 figures, text files with the data to reproduce the figures provided in source; replaced with published version, only minor changes and 1 figure removed

References in corpus (30)

• Microscopic Models for Ultrarelativistic Heavy Ion Collisions
• Hadron production in central nucleus-nucleus collisions at chemical freeze-out
• Comparison of Chemical Freeze-Out Criteria in Heavy-Ion Collisions
• Transport-theoretical Description of Nuclear Reactions
• Particle production and equilibrium properties within a new hadron transport approach for heavy-ion collisions
• The High-Acceptance Dielectron Spectrometer HADES
• THERMUS -- A Thermal Model Package for ROOT
• Low-Mass Dileptons at the CERN-SpS: Evidence for Chiral Restoration?
• Strangeness Production close to Threshold in Proton-Nucleus and Heavy-Ion Collisions
• Signatures of Thermal Dilepton Radiation at RHIC
• Understanding transport simulations of heavy-ion collisions at 100 and 400 AMeV: Comparison of heavy ion transport codes under controlled conditions
• Hyperon production in Ar+KCl collisions at 1.76A GeV
• Comprehensive Interpretation of Thermal Dileptons at the SPS
• Deep sub-threshold ${\Xi }^{-}$ production in Ar+KCl reactions at 1.76A GeV
• Dilepton production and off-shell transport dynamics at SIS energies
• Dilepton production and reaction dynamics in heavy-ion collisions at SIS energies from coarse-grained transport simulations
• Dilepton production in proton-induced reactions at SIS energies with the GiBUU transport model
• Sub-threshold $\varphi$ and ${\Xi }^{-}$ production by high mass resonances with UrQMD
• Centrality determination of Au+Au collisions at 1.23A GeV with HADES
• Contributions of hyperon-hyperon scattering to subthreshold cascade production in heavy ion collisions
• Dilepton production and resonance properties within a new hadronic transport approach in the context of the GSI-HADES experimental data
• System Size and Energy Dependence of Dilepton Production in Heavy-Ion Collisions at SIS Energies
• Production and evolution path of dileptons at HADES energies
• A coarse-graining approach for dilepton production at SPS energies
• Sub-threshold production of K^{0}_{s} mesons and Λ hyperons in Au(1.23A GeV)+Au
• Subthreshold Xi- Production in Collisions of p(3.5 GeV)+Nb
• Benchmarking a Non-Equilibrium Approach to Photon Emission in Relativistic Heavy-Ion Collisions
• Analysis of Dilepton Invariant Mass Spectrum in C+C at 2 and 1 AGeV
• Strangeness production via resonances in heavy-ion collisions at SIS energies
• Influence of anisotropic $\Lambda /\Sigma$ creation on the ${\Xi }^{-}$ mutiplicity in subthreshold proton-nucleus collisions

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