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Smoothed Particle Hydrodynamics (SPH) methods are advantageous in simulations of fluids in domains with free boundary. Special SPH methods have also been developed to simulate solids. However, there are situations where the matter behaves…

流体动力学 · 物理学 2024-01-18 Ondřej Kincl , Ilya Peshkov , Michal Pavelka , Václav Klika

We develop a framework for event-by-event ideal hydrodynamics to study the differential elliptic flow which is measured at different centralities in Au+Au collisions at Relativistic Heavy Ion Collider (RHIC). Fluctuating initial energy…

高能物理 - 唯象学 · 物理学 2011-03-22 Hannu Holopainen , Harri Niemi , Kari J. Eskola

The large elliptic flow observed at RHIC is considered to be evidence for almost perfect liquid behavior of the strongly coupled quark-gluon plasma produced in the collisions. In these proceedings we present a two parameter fit for the…

核实验 · 物理学 2009-11-18 H. Masui , J-Y. Ollitrault , R. Snellings , A. Tang

Analytical solution of one dimensional hydrodynamical model is derived, where phase transition from the QGP state to the hadronic state is effectively taken into account. The single particle rapidity distribution of charged $\pi$ mesons…

高能物理 - 唯象学 · 物理学 2010-12-14 Naomichi Suzuki

We investigate the robustness of the discovery of the perfect fluid through comparison of hydrodynamic calculations with the elliptic flow coefficient v_2 at midrapidity in Au+Au collisions at sqrt{s_{NN}}=200 GeV. Employing the Glauber…

核理论 · 物理学 2008-11-26 Tetsufumi Hirano , Ulrich W. Heinz , Dmitri Kharzeev , Roy Lacey , Yasushi Nara

Transport and mixing of gas species are of particular interest in planetary environments, where interactions among multiple species can occur within confined or porous media. In this work, we present a novel Smoothed Particle Hydrodynamics…

The dynamics of Quark-gluon plasma (QGP) as a lump of deconfined free quarks and gluons is elaborated. Based on the first principal we construct the Lagrangian that represents the dynamics of QGP. To induce a hydrodynamics approach, we…

高能天体物理现象 · 物理学 2017-06-20 T. P. Djun , M. K. N. Patmawijaya , R. Utama , L. T. Handoko

To study the bulk properties of the quark-gluon-plasma (QGP) produced at the beam energy scan (BES) energies at the Relativistic Heavy Ion Collider (RHIC), we extend the (3+1)-dimensional viscous hydrodynamics CLVisc to include net baryon…

高能物理 - 唯象学 · 物理学 2022-04-13 Xiang-Yu Wu , Guang-You Qin , Long-Gang Pang , Xin-Nian Wang

We introduce a new observable to probe the collective nature of the radial expansion of the quark-gluon plasma. This observable, dubbed $v_{02}(p_T)$, represents the correlation of the spectrum with elliptic flow, in the same way as the…

核理论 · 物理学 2025-07-22 Tribhuban Parida , Rupam Samanta , Jean-Yves Ollitrault

We propose to extend the commonly known flow analysis in the transverse $p_x$-$p_y$ plane to novel flow coefficients based on the angular distribution in the $p_x$-$p_z$ and $p_y$-$p_z$ planes. The new flow coefficients, called $u_n$ and…

核理论 · 物理学 2022-07-07 Tom Reichert , Jan Steinheimer , Marcus Bleicher

One of the most striking results from the Relativistic Heavy Ion Collider is the strong elliptic flow. This review summarizes what is observed and how these results are combined with reasonable theoretical assumptions to estimate the shear…

核理论 · 物理学 2016-12-21 Derek A. Teaney

In this study, we report the predictions for the flow observables for different centrality classes in $O+O$ collisions. Our predictions utilize two different approaches, hydrodynamic and transport models, to analyze the behavior of the flow…

核理论 · 物理学 2025-07-23 Jagbir Singh , M. U. Ashraf , A. M. Khan , S. Kabana

Possible phase transition of strongly interacting matter from hadron to a Quark-Gluon Plasma (QGP) state have in the p ast received considerable interest. It has been suggested that this problem might be treated by percolation theory. Th e…

核实验 · 物理学 2011-07-26 Brijesh K Srivastava

Experimental data from the Relativistic Heavy Ion Collider (RHIC) suggests that the quark gluon plasma behaves almost like an ideal fluid. Due to its short lifetime, many QGP properties can only be inferred indirectly through a comparison…

核理论 · 物理学 2015-06-03 Hannah Petersen , Rolando La Placa , Steffen A. Bass

Available data on heavy-ion collisions at AGS and SPS energies are analyzed using a 3-fluid dynamical model within a purely hadronic scenario. We investigate the problems met in reproducing these data within this scheme. In particular, we…

核理论 · 物理学 2008-11-26 Yu. B. Ivanov , V. N. Russkikh

Collective flow reflects the dynamical evolution in high-energy heavy ion collisions. In particular, the elliptic flow reflects early collision dynamics.We present a systematic analysis of elliptic flow ($v_{2}$) for identified particles…

核实验 · 物理学 2019-08-13 Shusu Shi

The study of flow can provide information on the initial state dynamics and the degree of equilibration attained in heavy ion collisions. This contribution presents results for both elliptic and directed flow as determined from data…

核实验 · 物理学 2019-08-14 Marguerite Belt Tonjes

Predominantly preliminary single and double inclusive momentum spectra of 158 AGeV Pb+Pb collisions, recently measured by the NA44 and NA49 Collaborations, are reproduced using the relativistic hydrodynamical model HYLANDER-C. Two different…

核理论 · 物理学 2022-02-23 B. R. Schlei

We investigate the influence of a deconfinement phase transition on the dynamics of hot and dense nuclear matter. We apply a hybrid model where an intermediate hydrodynamics stage is employed for the the hot and dense stage of a system…

高能物理 - 唯象学 · 物理学 2014-11-20 J. Steinheimer , V. Dexheimer , H. Petersen , M. Bleicher , S. Schramm , H. Stoecker

We study the collision energy dependence of elliptic flow v_2 and triangular flow v_3 in Au+Au collisions within the energy range sqrt(s_{NN}) = 5-200 GeV, utilizing a transport + hydrodynamics hybrid model. The transport part is described…

核理论 · 物理学 2014-04-11 Jussi Auvinen , Hannah Petersen