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Related papers: Rapidity dependent momentum anisotropy at RHIC

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We study the pseudorapidity dependent hydrodynamic response in heavy-ion collisions. A differential hydrodynamic relation is obtained for elliptic flow. Using event-by-event simulations of 3+1D MUSIC, with initial conditions generated via a…

Nuclear Theory · Physics 2021-02-03 Hui Li , Li Yan

Charged particles $p_T$ spectra and elliptic flow in 0-60% Au+Au collisions at RHIC are analyzed in a hydrodynamic model with hot, hadronic resonance gas in the initial state. Physically conceivable hadronic resonance gas, thermalized in…

Nuclear Theory · Physics 2014-11-21 Victor Roy , A. K. Chaudhuri

We study the effect of anisotropic escape mechanism on elliptic flow in relativistic heavy-ion collisions. We use Glauber model to generate initial conditions and ignore hydrodynamic expansion in the transverse direction. We employ…

High Energy Physics - Phenomenology · Physics 2018-04-18 Amaresh Jaiswal , Partha Pratim Bhaduri

We report the elliptic flow ($v_{2}$) of $K_{s}^{0}$, $\Lambda$, $\bar{\Lambda}$, $\phi$, $\Xi^{-}$, and $\overline{\Xi}^{+}$ at mid-rapidity for Ru+Ru and Zr+Zr collisions at $\sqrt{s_{\mathrm {NN}}}$ = 200 GeV. The transverse momentum…

Nuclear Experiment · Physics 2023-03-22 Priyanshi Sinha

The elliptic flow in heavy ion collisions at RHIC is studied in a multiphase transport model. By converting the strings in the high energy density regions into partons, we find that the final elliptic flow is sensitive to the parton…

Nuclear Theory · Physics 2009-11-07 Zi-wei Lin , C. M. Ko

We show that the centrality and system-size dependence of elliptic flow measured at RHIC are fully described by a simple model based on eccentricity scaling and incomplete thermalization. We argue that the elliptic flow is at least 25%…

Nuclear Theory · Physics 2008-11-26 Hans-Joachim Drescher , Adrian Dumitru , Clement Gombeaud , Jean-Yves Ollitrault

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 $v_{n}$…

Nuclear Experiment · Physics 2016-03-23 You Zhou , Kai Xiao , Zhao Feng , Feng Liu , Raimond Snellings

Anisotropic flow is recognized as one of the main observables providing information on the early stage of a heavy-ion collision. At RHIC the large observed anisotropic flow and its successful description by ideal hydrodynamics is considered…

Nuclear Experiment · Physics 2008-11-26 Raimond Snellings

We show from covariant transport theory that, for a massless ideal gas equation of state, even a small shear viscosity to entropy density ratio $\eta \approx s/(4 \pi)$ generates significant 15-30% dissipative corrections to elliptic flow…

Nuclear Theory · Physics 2008-06-03 Denes Molnar

By using the NexSPheRIO code, we study the elliptic-flow fluctuations in Au+Au collisions at 200A GeV. It is shown that, by fixing the parameters of the model to correctly reproduce the charged pseudo-rapidity and the transverse-momentum…

High Energy Physics - Phenomenology · Physics 2008-11-26 Yogiro Hama , Rone Peterson G. Andrade , Frédérique Grassi , Wei-Liang Qian , Takeshi Osada , Carlos Eduardo Aguiar , Takeshi Kodama

The directed flow of charged hadron and identified particles has been studied in the framework of a multi-phase transport (AMPT) model, for $^{197}$Au+$^{197}$Au collisions at $\sqrt{s_{NN}}=$200, 130, 62.4, 39, 17.2 and 9.2 GeV. The…

Nuclear Theory · Physics 2010-04-06 J. Y. Chen , J. X. Zuo , X. Z. Cai , F. Liu , Y. G. Ma , A. H. Tang

A pair-normalized two-particle covariance versus the rapidity of the two particles, called R$_2$, was originally studied in ISR and FNAL data in the 1970's. This variable has recently seen renewed interest for the study of the dynamics of…

Nuclear Experiment · Physics 2017-11-16 Sedigheh Jowzaee

This paper presents measurements of the elliptic flow of charged particles as a function of pseudorapidity and centrality from Cu-Cu collisions at 62.4 and 200 GeV using the PHOBOS detector at the Relativistic Heavy Ion Collider (RHIC). The…

Nuclear Experiment · Physics 2019-08-14 B. Alver

We analyze single particle momentum spectra and interferometry radii in central Au+Au collisions at RHIC within a hydro-inspired parametrization accounting for continuous hadron emission through the whole lifetime of hydrodynamically…

Nuclear Theory · Physics 2016-09-08 M. S. Borysova , Yu. M. Sinyukov , S. V. Akkelin , B. Erazmus , Iu. A. Karpenko

We show that fluctuations in elliptic anisotropy in heavy-ion collisions can be used to significantly reduce the contribution of transverse-momentum conservation, and of all background effects independent on the orientation of the reaction…

Nuclear Theory · Physics 2015-06-03 Adam Bzdak

Based on the quark coalescence model, we derive relations among the momentum anisotropies of mesons and baryons in relativistic heavy ion collisions from a given, but arbitrary azimuthal distribution for the partons. Besides the familiar…

Nuclear Theory · Physics 2009-11-10 Peter F. Kolb , Lie-Wen Chen , Vincenzo Greco , Che Ming Ko

Elliptical energy flow patterns in non-central Au(11.7AGeV) on Au reactions have been studied employing the RQMD model. The strength of these azimuthal asymmetries is calculated comparing the results in two different modes of RQMD (mean…

Nuclear Theory · Physics 2009-10-30 H. Sorge

The transverse momentum dependence of the anisotropic flow $v_2$ for $\pi$, $K$, nucleon, $\Lambda$, $\Xi$ and $\Omega$ is studied for Au+Au collisions at $\sqrt{s_{\rm NN}} = 200$ GeV within two independent string-hadron transport…

Nuclear Theory · Physics 2009-11-11 Y. Lu , M. Bleicher , F. Liu , Z. Liu , H. Petersen , P. Sorensen , H. Stoecker , N. Xu , X. Zhu

We report the study of the nuclear modification factor R_{AuAu} as function of pT and pseudo-rapidity in Au+Au collisions at top RHIC energy. We find this quantity almost independent of pseudo-rapidity. We use the pbar/pi- ratio as a probe…

Nuclear Experiment · Physics 2019-08-14 R. Debbe

One of the most striking results is the large elliptic flow ($v_2$) at RHIC. Detailed mass and transverse momentum dependence of elliptic flow are well described by ideal hydrodynamic calculations for $p_{\mathrm{T}} < $ 1 GeV/c, and by…

Nuclear Experiment · Physics 2019-08-13 Hiroshi Masui