Particle production in a hybrid approach for a beam energy scan of Au+Au/Pb+Pb collisions between $\sqrt{s_{\mathrm{NN}}}$ = 4.3 GeV and $\sqrt{s_{\mathrm{NN}}}$ = 200.0 GeV

Abstract

Heavy-ion collisions at varying collision energies provide access to different regions of the QCD phase diagram. In particular collisions at intermediate energies are promising candidates to experimentally identify the postulated first order phase transition and critical end point. While heavy-ion collisions at low and high collision energies are theoretically well described by transport approaches and hydrodynamics+transport hybrid approaches, respectively, intermediate energy collisions remain a challenge. In this work, a modular hybrid approach, the SMASH-vHLLE-hybrid coupling 3+1D viscous hydrodynamics (vHLLE) to hadronic transport (SMASH), is introduced. It is validated and subsequently applied in Au+Au/Pb+Pb collisions between $\sqrt{s_{\mathrm{NN}}}$ = 4.3 GeV and $\sqrt{s_{\mathrm{NN}}}$ = 200.0 GeV to study the rapidity and transverse mass distributions of identified particles as well as excitation functions for $\mathrm{dN}/\mathrm{d}y{|}_{y=0}$ and $⟨p_{\mathrm{T}}⟩$. A good agreement with experimental measurements is obtained, including the baryon stopping dynamics. The transition from a Gaussian rapidity spectrum of protons at lower energies to the double-hump structure at high energies is reproduced. The centrality and energy dependence of charged particle $v_2$ is also described reasonably well. This work serves as a basis for further studies, e.g. systematic investigations of different equations of state or transport coefficients.

References in corpus (54)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• A Brief Introduction to PYTHIA 8.1
• Microscopic Models for Ultrarelativistic Heavy Ion Collisions
• The equation of state in (2+1)-flavor QCD
• Signatures of the Tricritical Point in QCD
• Heavy Ion Collisions: The Big Picture, and the Big Questions
• Bulk Properties of the Medium Produced in Relativistic Heavy-Ion Collisions from the Beam Energy Scan Program
• Energy Dependence of Pion and Kaon Production in Central Pb+Pb Collisions
• Transport-theoretical Description of Nuclear Reactions
• Applying Bayesian parameter estimation to relativistic heavy-ion collisions: simultaneous characterization of the initial state and quark-gluon plasma medium
• Fully integrated transport approach to heavy ion reactions with an intermediate hydrodynamic stage
• Pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV: Evidence for the onset of deconfinement
• The importance of the bulk viscosity of QCD in ultrarelativistic heavy-ion collisions
• Study of relativistic nuclear collisions at AGS energies from p+Be to Au+Au with hadronic cascade model
• Particle production and equilibrium properties within a new hadron transport approach for heavy-ion collisions
• Unified Description of Freeze-Out Parameters in Relativistic Heavy Ion Collisions
• Multi-system Bayesian constraints on the transport coefficients of QCD matter
• Dynamics of Hot Bulk QCD Matter: from the Quark-Gluon Plasma to Hadronic Freeze-Out
• Identified particle production, azimuthal anisotropy, and interferometry measurements in Au+Au collisions at $\sqrt{s_{NN}}$ = 9.2 GeV
• Relativistic Transport Approach for Nucleus-Nucleus Collisions from SIS to SPS Energies
• A 3+1 dimensional viscous hydrodynamic code for relativistic heavy ion collisions
• Particlization in hybrid models
• Transport Coefficients of Bulk Viscous Pressure in the 14-moment approximation
• Inclusive charged hadron elliptic flow in Au + Au collisions at $\sqrt{s_{NN}}$ = 7.7 - 39 GeV
• Estimation of the shear viscosity at finite net-baryon density from A+A collision data at $\sqrt{s_{\mathrm{NN}}}=7.7-200$ GeV
• Dynamical initial state model for relativistic heavy-ion collisions
• Pseudorapidity distribution and decorrelation of anisotropic flow within CLVisc hydrodynamics
• Running the gamut of high energy nuclear collisions
• Charged Pion Production in 2 to 8 AGeV Central Au+Au Collisions
• An Excitation Function of K${}^{-}$ and K${}^{+}$ Production in Au+Au Reactions at the AGS
• An effective chiral Hadron-Quark Equation of State
• Integrated Dynamical Approach to Relativistic Heavy Ion Collisions
• Longitudinal Flow of Protons from 2-8 AGeV Central Au+Au Collisions
• Prelude to Compressed Baryonic Matter
• Centrality dependence of proton and antiproton spectra in Pb+Pb collisions at 40A GeV and 158A GeV measured at the CERN SPS
• Dynamically integrated transport approach for heavy-ion collisions at high baryon density
• Status of Chemical Freeze-Out
• Particle Production via Strings and Baryon Stopping within a Hadronic Transport Approach
• Deviations of the Energy-Momentum Tensor from Equilibrium in the Initial State for Hydrodynamics from Transport Approaches
• "Smashing more than two": Deuteron production in relativistic heavy ion collisions via stochastic multi-particle reactions
• Centrality and Energy Dependence of Proton, Light Fragment and Hyperon Production
• Dilepton production and resonance properties within a new hadronic transport approach in the context of the GSI-HADES experimental data
• Harmonic decomposition of three-particle azimuthal correlations at RHIC
• Review of Recent Results from the RHIC Beam Energy Scan
• Hybrid model with dynamical sources for heavy-ion collisions at BES energies
• A hybrid approach to relativistic heavy-ion collisions at the RHIC BES energies
• Anisotropic flow in transport+hydrodynamics hybrid approaches
• 3-D hydro + cascade model at RHIC
• Benchmarking a Non-Equilibrium Approach to Photon Emission in Relativistic Heavy-Ion Collisions
• Looking for the phase transition - recent NA61/SHINE results
• Forced canonical thermalization in a hadronic transport approach at high density
• Particle Production in AgAg Collisions at $E_{\mathrm{Kin}}=1.58A$ GeV within a Hadronic Transport Approach
• Probing the QCD Critical Point with Relativistic Heavy-Ion Collisions

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• Theoretical and Experimental Constraints for the Equation of State of Dense and Hot Matter
• The QCD phase diagram and Beam Energy Scan physics: a theory overview
• Structure in the speed of sound: from neutron stars to heavy-ion collisions
• Bayesian analysis of (3+1)D relativistic nuclear dynamics with the RHIC beam energy scan data
• Rapidity scan with multistage hydrodynamic and statistical thermal models
• Spin dynamics with realistic hydrodynamic background for relativistic heavy-ion collisions
• Flow and Equation of State of nuclear matter at ${\mathbf{E}}_{\mathrm{kin}}$/A=0.25-1.5 GeV with the SMASH transport approach
• Light Nuclei Femtoscopy and Baryon Interactions in 3 GeV Au+Au Collisions at RHIC
• Bayesian Model Selection and Uncertainty Propagation for Beam Energy Scan Heavy-Ion Collisions
• Spin Polarization of $\Lambda$ hyperons from Dissipative Spin Hydrodynamics
• Elliptic flow of deuterons in ultrarelativistic heavy-ion collisions
• Optimal collision-energy range for realizing macroscopic high-baryon-density matter
• The elliptic flow difference between baryons and anti-baryons in heavy collision with SMASH Model
• Application of the holographic equations of state for modeling experiments on heavy ion collisions
• Exploring hadron-quark phase transition in heavy-ion collisions using particle emission ratios in heavy and light reaction systems
• SMASH as an event generator for heavy-ion collisions
• Transport-based initial conditions for heavy-ion collisions at finite densities
• Collective effects in O-O and Ne-Ne collisions at $\sqrt{s_{\mathrm{NN}}}$=5.36 TeV from a hybrid approach
• Statistical analysis of the fluctuations of an initial-state model with independently distributed hot spots
• Extension of the integrated hydrokinetic model to nuclear collision energies relevant for the RHIC Beam-Energy Scan program and the research program at GSI-FAIR
• Particle spectra in the integrated hydrokinetic model at RHIC Beam-Energy-Scan energies
• Viscous Gubser flow with conserved charges to benchmark fluid simulations
• The $v_3^{1/3}/v_2^{1/2}$ ratio in PbAu collisions at $\sqrt{s_{\mathrm{NN}}}=$ 17.3 GeV: a hint of a hydrodynamic behavior
• An improved formula for Wigner function and spin polarization in a decoupling relativistic fluid at local thermodynamic equilibrium