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Related papers: 3+1 dimensional viscous hydrodynamics at high bary…

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Equilibration of highly excited baryon-rich matter is studied within the microscopic model calculations in A+A collisions at energies of BES, FAIR and NICA. It is shown that the system evolution from the very beginning of the collision can…

Nuclear Theory · Physics 2021-02-03 E. Zabrodin , L. Bravina , M. Teslyk , O. Vitiuk

Using the (2+1)-dimensional viscous hydrodynamic code VISH2+1, we present systematic studies of the dependence of pion and proton transverse momentum spectra and their elliptic flow in 200 A GeV Au+Au collisions on the parameters of the…

Nuclear Theory · Physics 2010-12-02 Chun Shen , Ulrich W. Heinz , Pasi Huovinen , Huichao Song

The results on the main bulk observables obtained in the simulations within the integrated hydrokinetic model (iHKM) of Au+Au collisions at the RHIC energy $\sqrt{s_{NN}}=200$ GeV are presented along with the corresponding experimental data…

High Energy Physics - Phenomenology · Physics 2019-06-26 M. D. Adzhymambetov , V. M. Shapoval , Yu. M. Sinyukov

We investigate the collision energy dependence of shear viscosity over the entropy density ratio $\eta/s$ in Au+Au collisions at $\sqrt{s_{NN}}=19.6, 39$, and $62.4$ GeV, using Bayesian statistical analysis and Gaussian process emulators to…

Nuclear Theory · Physics 2016-10-04 Jussi Auvinen , Jonah E. Bernhard , Steffen A. Bass

We have developed a next-generation hybrid event-by-event three-fluid hydrodynamic model, suitable for simulations of heavy-ion collisions in the energy range from few up to tens of GeV per colliding NN pair. At such energies the…

Nuclear Theory · Physics 2024-10-10 Jakub Cimerman , Iurii Karpenko , Boris Tomasik , Pasi Huovinen

The expansion of the fireball created in relativistic heavy ion collisions is described using the 3+1D hydrodynamical model. Experimentally observed transverse momentum spectra at different rapdities, elliptic flow and HBT correlations of…

Nuclear Theory · Physics 2014-11-20 Piotr Bozek , Iwona Wyskiel

Combining the hydrodynamic model (Hydro code) and the transport model (PACIAE model), we present the Hydro-PACIAE hybrid model. We use the Hydro-PACIAE hybrid model to calculate Au+Au collisions at $\sqrt{s_{NN}}$=130 GeV and Pb+Pb…

Nuclear Theory · Physics 2015-06-03 Yu-Liang Yan , Yun Cheng , Dai-Mei Zhou , Bao-Guo Dong , Xu Cai , Ben-Hao Sa , Laszlo P. Csernai

Time evolution of shear viscosity $\eta$, entropy density $s$, and their ratio $\eta / s$ in the central area of central gold-gold collisions at NICA energy range is studied within the UrQMD transport model. The extracted values of energy…

Nuclear Theory · Physics 2020-01-15 M. Teslyk , L. Bravina , O. Panova , O. Vitiuk , E. Zabrodin

Using the newly developed hybrid model VISHNU which connects viscous hydrodynamics with a hadron cascade model, we study the differential and integrated elliptic flow v_2 at different centrality bins for 200 A GeV Au+Au collisions and 2.76…

Nuclear Theory · Physics 2015-03-19 Huichao Song , Steffen A. Bass , Ulrich W. Heinz

We study the different nucleus-nucleus collisions, O+Au, S+S, S+Ag, S+Au and Pb+Pb, at the CERN-SPS energy in a one-fluid hydrodynamical approach using a parametrization based on baryon stopping in terms of the thickness of colliding…

Nuclear Theory · Physics 2011-09-13 J. Sollfrank , P. Huovinen , P. V. Ruuskanen

Baryon and energy densities, which are reached in central Au+Au collisions at collision energy of $\sqrt{s_{NN}}= 39$ GeV, are estimated within the model of three-fluid dynamics. It is shown that the initial thermalized mean proper baryon…

Nuclear Theory · Physics 2018-02-21 Yu. B. Ivanov , A. A. Soldatov

We make phenomenological predictions for particle spectra and elliptic flow in heavy-ion collisions using 3+1d anisotropic hydrodynamics (aHydro) including the effects of both shear and bulk viscosities. The dynamical equations necessary…

Nuclear Theory · Physics 2017-05-24 Mohammad Nopoush , Michael Strickland , Radoslaw Ryblewski

Through model-to-data comparisons from heavy-ion collisions, it has been shown that the Quark Gluon Plasma has an extremely small shear viscosity at vanishing densities. At large baryon densities, significantly less is known about the…

High Energy Physics - Phenomenology · Physics 2025-06-12 Isabella Danhoni , Jordi Salinas San Martin , Jacquelyn Noronha-Hostler

We evaluate the effects of preequilibrium dynamics on observables in ultrarelativistic heavy-ion collisions. We simulate the initial nonequilibrium phase within A MultiPhase Transport (AMPT) model, while the subsequent near-equilibrium…

We demonstrate by explicit calculations in 3+1 dimensional viscous relativistic fluid dynamics how two-particle pseudorapidity correlation functions in heavy ion collisions at the LHC and RHIC depend on the number of particle producing…

Nuclear Theory · Physics 2015-12-02 Akihiko Monnai , Bjoern Schenke

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…

High Energy Physics - Phenomenology · Physics 2023-01-24 Anna Schäfer , Iurii Karpenko , Xiang-Yu Wu , Jan Hammelmann , Hannah Elfner

We report the first predictions of elliptic flow ($v_2$) of identified hadrons at mid-rapidity ($|y| <$ 1.0) in Au+Au collisions at $E_{lab} =$ 6.7, 8, 11, and 25 A GeV using the Parton Hadron String Dynamics (PHSD) model. The transverse…

High Energy Physics - Phenomenology · Physics 2024-07-09 B. Towseef , M. Farooq , V. Bairathi , B. Waseem , S. Kabana , S. Ahmad

High-energy heavy ion collider experiments at RHIC and LHC have revealed that relativistic hydrodynamic models describe the hot and dense quark matter quantitatively. In this study, I develop a novel dissipative hydrodynamic model at finite…

Nuclear Theory · Physics 2013-02-11 Akihiko Monnai

Kinetic equilibration of the matter and baryon densities attained in central region of colliding Au+Au nuclei in the energy range of $\sqrt{s_{NN}}=$ 3.3--39 GeV are examined within the model of the three-fluid dynamics. It is found that…

Nuclear Theory · Physics 2020-03-04 Yu. B. Ivanov , A. A. Soldatov

We introduce an event-by-event pQCD + saturation + hydro ("EKRT") framework for high-energy heavy-ion collisions, where we compute the produced fluctuating QCD-matter energy densities from next-to-leading order (NLO) perturbative QCD (pQCD)…

High Energy Physics - Phenomenology · Physics 2015-09-10 K. J. Eskola , H. Niemi , R. Paatelainen
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