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相关论文: Systematic study of the elliptic flow parameter us…

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The elliptic azimuthal anisotropy coefficient ($v_{2}$) of the identified particles at midrapidity ($|\eta|<0.8$) was investigated in p--Pb collisions at $\sqrt{s_\mathrm{NN}}=$ 5.02 TeV using a multi-phase transport model (AMPT). The…

高能物理 - 唯象学 · 物理学 2024-04-01 Siyu Tang , Liang Zheng , Xiaoming Zhang , Renzhuo Wan

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

The effects of event-by-event fluctuations in the initial geometry of the colliding nuclei are important in the analysis of final flow observables in relativistic heavy-ion collisions. We use hydrodynamic simulations to study the amplitude…

核理论 · 物理学 2016-09-14 Jing Qian , Ulrich Heinz

We have developed a relativistic kinetic transport approach that incorporates initial state fluctuations allowing to study the build up of elliptic flow $v_2$ and high order harmonics $v_3$, $v_4$ and $v_5$ for a fluid at fixed $\eta/s(T)$.…

高能物理 - 唯象学 · 物理学 2015-11-23 Salvatore Plumari , Giovanni Luca Guardo , Francesco Scardina , Vincenzo Greco

Recently, Chatterjee et al used a hadronic transport model to estimate the resolution with which various experimental quantities select the impact parameter of relativistic heavy ion collisions at collision energies relevant to the Beam…

核实验 · 物理学 2021-04-21 Skipper Kagamaster , Rosi Reed , Michael Lisa

The anisotropy parameter v_2, the second harmonic of the azimuthal particles distribution, has been measured with the PHENIX detector in Au+Au collisions at sqrt(s_NN) = 200 GeV for identified and inclusive charged particles at central…

核实验 · 物理学 2008-11-26 PHENIX Collaboration , S. S. Adler

Transverse spherocity is an event shape observable, which separates the events based on their geometrical shapes. In this work, we use transverse spherocity to study the identified light flavor production in heavy-ion collisions using A…

高能物理 - 唯象学 · 物理学 2022-06-16 Neelkamal Mallick , Sushanta Tripathy , Raghunath Sahoo

Using a dynamical model based on the $NN \to d\pi$, $NNN \to dN$, and $NN\pi \to d\pi$ reactions and measured proton and pion transverse momentum spectra and elliptic flows, we study the production of deuterons and their elliptic flow in…

核理论 · 物理学 2008-11-26 Yongseok Oh , Che Ming Ko

We investigate the dependence of elliptic flows $v_2$ on transverse momentum $P_T$ for charged hadrons produced in nucleus-nucleus collisions at high energy by using a multi-source ideal gas model which includes the interaction contribution…

核理论 · 物理学 2018-05-04 Bao-Chun Li , Yuan-Yuan Fu , Er-Qin Wang , Fu-Hu Liu

Elliptic flow of the hot, dense system which has been created in nucleus-nucleus collisions develops as a response to the initial azimuthal asymmetry of the reaction region. Here it is suggested that the magnitude of this response shows a…

核理论 · 物理学 2009-10-31 Heinz Sorge

This paper investigates the relationship between initial spatial anisotropy and final state momentum anisotropy in heavy ion collisions through the analysis of elliptic flow ($v_2$) as a function of transverse momentum ($p_T$). Building…

核理论 · 物理学 2024-12-10 Mira Varma , Oliver Baker

The major goal of high-energy heavy-ion collisions is to study the properties of the deconfined quark gluon plasma (QGP), such as partonic collectivity. The collective motion of constituent quarks can be derived from the anisotropic flow…

核实验 · 物理学 2020-12-02 Amir Goudarzi , Gang Wang , Huan Zhong Huang

We demonstrate high prediction accuracy of three important properties that determine the initial geometry of the heavy-ion collision (HIC) experiments by using supervised Machine Learning (ML) methods. These properties are the impact…

高能物理 - 唯象学 · 物理学 2022-11-23 Abhisek Saha , Debasis Dan , Soma Sanyal

Anisotropic flow of hadronic matter is considered as a sensitive tool to detect the early stage dynamics of high-energy heavy-ion collisions. Taking the event by event fluctuations of the collision geometry into account, the elliptic flow…

核理论 · 物理学 2018-04-17 Soumya Sarkar , Provash Mali , Amitabha Mukhopadhyay

This paper presents research that focuses on nonflow contribution subtraction in heavy-ion collisions, using a multiphase transport model (AMPT). Specifically, the study aims to investigate the behavior of charged particle elliptic flow…

核实验 · 物理学 2023-09-26 Zuman Zhang , Sha Li , Ning Yu , Qiao Wu

The elliptic flows in both Cu+Cu and Au+Au collisions at the Relativistic Heavy Ion Collider are studied in a multi-phase transport model. For both collisions at same reduced impact parameter and minimum bias collisions, the elliptic flow…

核理论 · 物理学 2007-05-23 Lie-Wen Chen , Che Ming Ko

The collective flow provides valuable insights into the anisotropic expansion of particles produced in heavy-ion collisions and is sensitive to the equation of the state of nuclear matter in high-baryon-density regions. In this paper, we…

核理论 · 物理学 2025-01-24 Shaowei Lan , Zuowen Liu , Like Liu , Shusu Shi

We present the directed flow measurement ($v_1$) from Au+Au collisions at $\sqrtsNN = 62$ GeV. Over the pseudorapidity range we have studied, which covers $\eta$ from -1.2 to 1.2 and $2.4 < |\eta| < 4$, the magnitude of $v_1$ for charged…

核实验 · 物理学 2009-11-10 Aihong Tang

Recent results indicate that the J/psi suppression pattern differs with rapidity showing a larger suppression at forward rapidity. J/psi suppression mechanisms based on energy density (such as color screening, interaction with co-movers,…

核实验 · 物理学 2019-08-13 Catherine Silvestre

The principal component analysis of flow correlations in heavy-ion collisions is studied. The correlation matrix of harmonic flow is generalized to correlations involving several different flow vectors. The method can be applied to study…

核理论 · 物理学 2018-03-14 Piotr Bozek