Hybrid model with dynamical sources for heavy-ion collisions at BES energies

Du, Lingyan; Heinz, Ulrich; Vujanovic, Gojko

doi:10.1016/j.nuclphysa.2018.09.015

Cited by 44 publications

(61 citation statements)

References 9 publications

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“…is not yet included in the SMASH-vHLLE-hybrid [26,27]. Nevertheless, the qualitative (and almost quantitative) agreement with the proton rapidity distribution over a large range of beam energies is considered an important pre-requisite for further studies of phase transition signals.…”

Section: Resultsmentioning

confidence: 99%

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

Schäfer¹,

Karpenko²,

Wu³

et al. 2021

Preprint

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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 √ s NN = 4.3 GeV and √ s NN = 200.0 GeV to study the rapidity and transverse mass distributions of identified particles as well as excitation functions for dN/dy| y=0 and p 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.

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Section: Resultsmentioning

confidence: 99%

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

Schäfer¹,

Karpenko²,

Wu³

et al. 2021

Preprint

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show abstract

“…The complex 3D collision dynamics can be approximated by parametric energy depositions based on the collision geometry [24][25][26][27]. Non-trivial dynamics could be included by modeling the energy loss in individual nucleon-nucleon collisions based on either string deceleration [23,28] or full transport simulations [22,29,30]. Further theory developments exist to understand the early-stage baryon stopping from the Color Glass Condensate-based approaches in the fragmentation region [31,32] and a holographic approach at intermediate couplings [33].…”

Section: Relativistic Heavy-ion Collisions With Collision Energiesmentioning

confidence: 99%

“…Further theory developments exist to understand the early-stage baryon stopping from the Color Glass Condensate-based approaches in the fragmentation region [31,32] and a holographic approach at intermediate couplings [33]. In the meantime, dynamical initialization schemes have been developed to interweave initial-state and hydrodynamics on a local basis to model the extended interaction region between the two colliding nuclei at low collision energies [23,30,34,35]. These schemes have also been applied to study small systems and jet-medium interactions [36,37].…”

Section: Relativistic Heavy-ion Collisions With Collision Energiesmentioning

confidence: 99%

Dynamic modeling for heavy-ion collisions

Shen

2022

EPJ Web Conf.

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Recent theory progress in (3+1)D dynamical descriptions of relativistic nuclear collisions at finite baryon density are reviewed. Heavy-ion collisions at different collision energies produce strongly coupled nuclear matter to probe the phase structure of Quantum Chromodynamics (QCD). Dynamical frameworks serve as a quantitative tool to study properties of hot QCD matter and map collisions to the QCD phase diagram. Outstanding challenges are highlighted when confronting theoretical models with the current and forthcoming experimental measurements from the RHIC beam energy scan program.

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“…This can be done, for example, using a partonic model (e.g. UrQMD) [33,34] or a phenomenological string model [23]. In the latter, each binary collision of participant nucleons results in a string between the wounded nucleons.…”

Section: Rapidity Fluctuationsmentioning

confidence: 99%

Initial conditions for nuclear collisions: theory overview

Mazeliauskas

2019

Nuclear Physics A

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We overview the current status and recent developments on initial conditions in ultra-relativistic nucleus-nucleus collisions. Specifically, we look at the progress in understanding the role of sub-nucleonic fluctuations in large and small collision systems. Next, we review the current ideas of going beyond boost invariant initial conditions and introducing physically motivated rapidity fluctuations at RHIC and LHC energies. Finally, we discuss the time evolution of initial stages and the matching between different descriptions of the QGP.

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Hybrid model with dynamical sources for heavy-ion collisions at BES energies

Cited by 44 publications

References 9 publications

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

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

Dynamic modeling for heavy-ion collisions

Initial conditions for nuclear collisions: theory overview

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