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相关论文: Elliptic Flow Analysis at RHIC: Fluctuations vs. N…

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The elliptic flow parameter ($v_2$) for $K_S^0$ and $\Lambda+\bar{\Lambda}$ has been measured at mid-rapidity in Au + Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV by the STAR collaboration. The $v_2$ values for both $K_S^{0}$ and…

核实验 · 物理学 2009-11-10 Paul Sorensen

Using the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model, we investigate azimuthal correlations in p--Pb collisions at $\sqrt{s_{_{\rm NN}}}=5.02$ TeV. Comparison with the experimental data shows that UrQMD can not reproduce…

核理论 · 物理学 2015-03-25 You Zhou , Xiangrong Zhu , Pengfei Li , Huichao Song

Recently the ratio of triangular flow to the elliptic flow ($v_3/v_2$) of hadrons was proposed as a probe to detect the pattern of $\alpha$-clustering $^{12}\mathrm{C}$ in $^{12}\mathrm{C}$+$^{197}\mathrm{Au}$ collisions at relativistic…

核理论 · 物理学 2018-11-05 S. Zhang , Y. G. Ma , J. H. Chen , W. B. He , C. Zhong

Quantum fluctuations plays an essential role in forming the collective flow of hadrons observed in relativistic heavy-ion collisions. Event-by-event fluctuations of the collective flow can arise from various sources, such as the…

核理论 · 物理学 2024-07-09 Xinrong Chen , Xiang-Yu Wu , Shanshan Cao , Guang-You Qin

Using event-by-event hydrodynamic calculations, we find that the fluctuations of the elliptic flow ($v_2$) in the reaction plane have a negative skew. We compare the skewness of $v_2$ fluctuations to that of initial eccentricity…

In this paper we look for a correlations between intermediate $p_T$ particle pairs and the $v_2$ of the remaining low $p_T$ particles. We find that the shape of the flow vector distribution, which is calculated from all low $p_T$ tracks,…

核实验 · 物理学 2009-07-22 N. K. Pruthi

The results from the STAR Collaboration on directed flow (v_1), elliptic flow (v_2), and the fourth harmonic (v_4) in the anisotropic azimuthal distribution of particles from Au+Au collisions at sqrtsNN = 200 GeV are summarized and compared…

核实验 · 物理学 2012-08-27 STAR Collaboration

We discuss various contributions to the event-by-event charge-asymmetry dependence of $\pi^{+}$ and $\pi^{-}$ elliptic flow, recently measured by the STAR Collaboration at RHIC. It is shown that under general assumptions, the difference…

核理论 · 物理学 2013-09-30 Adam Bzdak , Piotr Bozek

The number-of-constituent-quark (NCQ) scaling behavior of the elliptic flow of identified particles produced in A+A collisions is studied quantitatively using an empirical function that fits the experimental $v_2$ data available from the…

高能物理 - 唯象学 · 物理学 2022-03-22 M. Wang , J. Q. Tao , H. Zheng , W. C. Zhang , L. L. Zhu , A. Bonasera

The elliptic flow measured at RHIC has been interpreted as a signature for strong partonic interactions early in the collision and as an indication of a well developed quark-gluon plasma phase. The measured values of elliptic flow, using…

核实验 · 物理学 2007-05-23 Mike Miller , Raimond Snellings

This manuscript reports on the elliptic flow parameter, $v_{_2}$, in proton-proton (p-p) collisions using PYTHIA8 event generator simulations. The typical Event Plane ($EP$) method $v_{_2}$($EP$) as the one used for the real data analysis…

高能物理 - 唯象学 · 物理学 2024-10-02 M. I. Abdulhamid , A. M. Hamed , E. A. Osama , M. Rateb , N. K. Sadoun , F. H. Sawy

Elliptic flow ($v_2$) measurements of inclusive charged hadrons at mid-rapidity ($|\eta| <$ 1.0) in Au+Au collisions at $E_{lab} = 35\mathrm{~A~GeV}$ using the Parton Hadron String Dynamics (PHSD) model are presented as a function of…

核实验 · 物理学 2023-02-24 Waseem Bhat , M. Farooq Mir , Vipul Bairathi , Towseef Bhat , Sonia Kabana , Shabir Bhat

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

We performed systematic studies on the effects of event-by-event efficiency fluctuations on efficiency correction for cumulant analysis in relativistic heavy-ion collision experiments. Experimentally, particle efficiencies of events…

数据分析、统计与概率 · 物理学 2018-09-11 Shu He , Xiaofeng Luo

We present the measurement of elliptic flow ($v_{2}$) as a function of transverse momentum ($p_{T}$) for the $\phi$-meson in Au+Au collisions at $\sqrt{s_{NN}}$ = 7.7, 11.5 and 39 GeV. At low $p_{T}$ $\phi$-meson $v_{2}$ decreases with…

核实验 · 物理学 2019-08-13 Md. Nasim

Elliptic flow at RHIC is computed event-by-event with NeXSPheRIO. We show that when symmetry of the particle distribution in relation to the reaction plane is assumed, as usually done in the experimental extraction of elliptic flow, there…

核理论 · 物理学 2008-11-26 R. Andrade , F. Grassi , Y. Hama , T. Kodama , O. Socolowski

We discuss the sensitivity of the three-particle azimuthal cumulant method for a search and study of conical emission in central relativistic $A+A $ collisions. Our study is based on a multi-component Monte Carlo model which include flow…

核实验 · 物理学 2009-12-31 Claude Pruneau

We present measurements of 2- and 4-particle correlations in d+Au collisions at four different center-of-mass energies: 200, 62.4, 39, and 19.6 GeV. The data were collected in 2016 by the PHENIX experiment at RHIC. The second Fourier…

核实验 · 物理学 2018-03-14 R. Belmont

Elliptic flow is an interesting probe of the dynamical evolution of the dense system formed in the ultrarelativistic heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC). The elliptic flow dependences on transverse momentum,…

核实验 · 物理学 2019-08-14 Carla M. Vale

ATLAS measurements of the azimuthal anisotropy in lead-lead collisions at $\sqrt{s_{NN}}=2.76$ TeV are shown using a dataset of approximately 7 $\mu$b$^{-1}$ collected at the LHC in 2010. The measurements are performed for charged particles…

高能物理 - 实验 · 物理学 2014-12-23 ATLAS Collaboration