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We investigate elliptic flow in heavy ion collisions at intermediate energies. In doing this, we implement and use a lattice-Hamiltonian model of the nuclear interaction and we also study the effect of in-medium nucleon-nucleon cross…

核理论 · 物理学 2011-08-11 Declan Persram , Charles Gale

The elliptic flow ($v_{2}$) at $\sqrt{s_{\rm NN}} = $ 11.5, 39, and 200 GeV and triangular flow ($v_{3}$) at $\sqrt{s_{\rm NN}} = $ 200 GeV of identified particles ($\pi^{\pm}, K^{\pm}, K^{0}_{S}, p, \bar{p}, \phi, \Lambda$ and…

核实验 · 物理学 2015-09-28 Xu Sun , Jianli Liu , Alexander Schmah , Shusu Shi , Jingbo Zhang , Lei Huo , Hanzhi Jiang

Based on A Multi-Phase Transport (AMPT) model, we have studied the elliptic flow $v_{2}$ of $\phi$ mesons from reconstructed $K^{+}K^{-}$ decay channel at the top Relativistic Heavy Ion Collider energy at Brookhaven National Laboratory. The…

核理论 · 物理学 2007-05-23 J. H. Chen , Y. G. Ma , G. L. Ma , X. Z. Cai , Z. J. He , H. Z. Huang , J. L. Long , W. Q. Shen , C. Zhong , J. X. Zuo

Within hydrodynamics we study the effects of the initial spatial anisotropy in non-central heavy-ion collisions on the momentum distributions of the emitted hadrons. We show that the elliptic flow measured at midrapidity in 158 A GeV/c…

核理论 · 物理学 2009-10-09 Peter F. Kolb , Josef Sollfrank , Ulrich Heinz

We describe in detail how the different components of a multi-phase transport (AMPT) model, that uses the Heavy Ion Jet Interaction Generator (HIJING) for generating the initial conditions, Zhang's Parton Cascade (ZPC) for modeling partonic…

核理论 · 物理学 2008-11-26 Zi-Wei Lin , Che Ming Ko , Bao-An Li , Bin Zhang , Subrata Pal

The difference in elliptic flow $v_{2}$ between protons and antiprotons, produced in $^{197}\text{Au}+^{197}\text{Au}$ collisions at center-of-mass energies $\sqrt{s_{NN}}=5-12~\text{GeV}$, is studied within a modified version of the…

核理论 · 物理学 2022-03-24 Pengcheng Li , Yongjia Wang , Jan Steinheimer , Qingfeng Li , Hongfei Zhang

Within a multi-phase transport (AMPT) model with the string melting mechanism and imported initial electric quadrupole moment, the difference between the elliptic flow of positive and negative pions is calculated. The slope parameter $r$ of…

核理论 · 物理学 2014-07-09 Guo-Liang Ma

We predict a new effect due to the presence of the global vorticity in non-central relativistic heavy-ion collisions, namely a splitting of the elliptic flow parameter $v_2$ at non-zero rapidity. The size of the splitting is proposed as a…

高能物理 - 唯象学 · 物理学 2021-10-18 Zhengyu Chen , Zeyan Wang , Carsten Greiner , Zhe Xu

Using a partonic transport model based on the Nambu-Jona-Lasinio model, we study the effect of scalar and vector mean fields on the elliptic flows of quarks and antiquarks in relativistic heavy ion collisions in Au+Au collisions at…

核理论 · 物理学 2014-07-17 Taesoo Song , Salvatore Plumari , Vincenzo Greco , Che Ming Ko , Feng Li

Higher-order anisotropic flows $v_{4}$ and $v_{6}$ in heavy ion collisions at the Relativistic Heavy Ion Collider are studied in a multiphase transport model that has previously been used successfully for describing the elliptic flow $v_2$…

核理论 · 物理学 2009-11-10 Lie-Wen Chen , C. M. Ko , Zi-Wei Lin

To study heavy ion collisions at energies available from the Relativistic Heavy Ion Collider, we have developed a multi-phase transport model that includes both initial partonic and final hadronic interactions. Specifically, the parton…

核理论 · 物理学 2009-10-31 Bin Zhang , C. M. Ko , Bao-An Li , Ziwei Lin

We examine whether the breakdown in elliptic flow quark number scaling observed at the Relativistic Heavy Ion Collider (RHIC) energy scan is related to the turning off of deconfinement by testing the hypothesis that hydrodynamics and parton…

核理论 · 物理学 2013-05-30 Vincenzo Greco , Michael Mitrovski , Giorgio Torrieri

Using a multiphase transport (AMPT) model that includes both initial partonic and final hadronic interactions, we study the pion interferometry at the Relativistic Heavy Ion Collider. We find that the two-pion correlation function is…

核理论 · 物理学 2009-07-09 Zi-wei Lin , C. M. Ko , Subrata Pal

With A Multi-Phase Transport (AMPT) model we investigate the relation between the magnitude, fluctuations and correlations of the initial state spatial anisotropy $\varepsilon_{n}$ and the final state anisotropic flow coefficients $v_{n}$…

核实验 · 物理学 2016-03-23 You Zhou , Kai Xiao , Zhao Feng , Feng Liu , Raimond Snellings

Heavy ion collisions in the low energy run at Relativistic Heavy Ion Collider (RHIC) and future Facility for Antiproton and Ion Research (FAIR) in Germany are expected to produce a quark-gluon plasma that has a finite baryon chemical…

核理论 · 物理学 2011-03-07 Lie-Wen Chen , Che Ming Ko , Wei Liu , Ben-Wei Zhang

Fully dynamic simulations of heavy ion collisions at RHIC and at LHC energies within the perturbative QCD-based partonic transport model BAMPS (Boltzmann Approach to Multi-Parton Scatterings) are presented, focusing on the simultaneous…

高能物理 - 唯象学 · 物理学 2015-05-28 Oliver Fochler , Jan Uphoff , Zhe Xu , Carsten Greiner

Strange hadrons, especially multi-strange hadrons are good probes for the early partonic stage of heavy ion collisions due to their small hadronic cross sections. In this paper, I give a brief review on the elliptic flow measurements of…

核实验 · 物理学 2016-09-21 Shusu Shi

Centrality, rapidity, and transverse momentum dependence of hadron elliptic flow is studied in Au+Au collisions at BNL RHIC energies within the microscopic quark-gluon string model. The QGSM predictions coincide well with the experimental…

核理论 · 物理学 2009-11-07 E. E. Zabrodin , C. Fuchs , L. V. Bravina , Amand Faessler

The fluctuations of elliptic flow (\vtwo) in relativistic heavy-ion collisions offer a powerful tool to probe the collective behavior and transport properties of the quark-gluon plasma (QGP). The dependence of these fluctuations on particle…

核理论 · 物理学 2025-12-23 Jie Wan , Chun-Zheng Wang , Yu-Gang Ma , Qi-Ye Shou , Song Zhang

To incorporate the effect of gluons on the evolution dynamics of the quark matter produced in relativistic heavy-ion collisions, we extend the 3-flavor Nambu-Jona-Lasinio (NJL) transport model to include the contribution from the Polyakov…

核理论 · 物理学 2021-10-13 Wen-Hao Zhou , He Liu , Feng Li , Yi-Feng Sun , Jun Xu , Che Ming Ko