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The space-time evolution of the (1+1)-dimensional viscous hydrodynamics with an initial quark-gluon plasma (QGP) produced in ultrarelativistic heavy ion collisions is studied numerically. The particle-emitting sources undergo a crossover…

核理论 · 物理学 2015-05-19 M. J. Efaaf , Zhong-Qian Su , Wei-Ning Zhang

In many simulations of high-energy heavy-ion collisions on an event-by-event analysis, it is known that the initial energy density distribution in the transverse plane is highly fluctuating. Subsequent longitudinal expansion will lead to…

高能物理 - 唯象学 · 物理学 2009-11-11 Wei-Ning Zhang , Yan-Yu Ren , Cheuk-Yin Wong

We systematically investigate the pion transverse momentum spectrum, elliptic flow, and Hanbury-Brown-Twiss (HBT) interferometry in the granular source model of quark-gluon plasma droplets in ultra-relativistic heavy ion collisions. The…

核理论 · 物理学 2015-01-16 Jing Yang , Yan-Yu Ren , Wei-Ning Zhang

We examine the two-pion interferometry for a granular source of quark-gluon plasma droplets. The evolution of the droplets is described by relativistic hydrodynamics with an equation of state suggested by lattice gauge results. Pions are…

高能物理 - 唯象学 · 物理学 2009-11-10 W. N. Zhang , M. J. Efaaf , Cheuk-Yin Wong

We systematically investigate the pion transverse momentum spectrum, elliptic flow, and Hanbury-Brown-Twiss (HBT) interferometry in the granular source model for the heavy ion collisions of Au-Au at $\sqrt{s_{NN}}=$ 200 GeV and Pb-Pb at…

核理论 · 物理学 2014-08-19 Jing Yang , Yan-Yu Ren , Wei-Ning Zhang

A review on the two-pion Hanbury-Brown-Twiss (HBT) interferometry in the granular source model of quark-gluon plasma droplets is presented. The characteristic quantities of the granular source extracted by imaging analysis are presented and…

核理论 · 物理学 2012-03-01 Wei-Ning Zhang

We investigate the two-pion interferometry in ultrarelativistic heavy ion collisions in the granular source model of quark-gluon plasma droplets. The pion transverse momentum spectra and HBT radii of the granular sources agree well with the…

核理论 · 物理学 2015-05-28 Wei-ning Zhang , Hong-Jie Yin , Yan-Yu Ren

We investigate the boundary effect of QGP droplet and self-similarity effect of hadrons on QGP-hadron phase transition. In intermediate or low energy collisions, when the transverse momentum is below QCD scale, QGP cannot be produced.…

高能物理 - 唯象学 · 物理学 2024-11-12 Tingting Dai , Huiqiang Ding , Luan Cheng , Weining Zhang , Enke Wang

We present a review on the explanation of the RHIC HBT puzzle by a granular pion-emitting source of quark-gluon plasma droplets. The evolution of the droplet is described by relativistic hydrodynamics with an equation of state suggested by…

高能物理 - 唯象学 · 物理学 2009-11-18 Wei-Ning Zhang , Cheuk-Yin Wong

We investigate the two-pion interferometry in ultrarelativistic heavy ion collisions in the granular source model of quark-gluon plasma droplets. The pion transverse momentum spectra and HBT radii of the granular sources agree well with the…

核理论 · 物理学 2012-03-01 Wei-Ning Zhang

We investigate pion source sizes through the Yano-Koonin-Podgoretski\u{\i} (YKP) parametrization for the Hanbury-Brown Twiss (HBT) effect in the CERN-SPS 158 GeV/A central collisions. We calculate two-particle correlation functions…

核理论 · 物理学 2007-05-23 K. Morita , S. Muroya , H. Nakamura , C. Nonaka

In this article, we will briefly review the recent progress on hydrodynamic modeling and the extraction of the quark-gluon plasma (QGP) specific shear viscosity with an emphasis on results obtained from the hybrid model VISHNU that couples…

核理论 · 物理学 2015-06-05 Huichao Song

We investigate the influence of a temperature-dependent shear viscosity over entropy density ratio eta/s on the transverse momentum spectra and elliptic flow of hadrons in ultrarelativistic heavy-ion collisions. We find that the elliptic…

核理论 · 物理学 2011-06-27 Harri Niemi , Gabriel S. Denicol , Pasi Huovinen , Etele Molnar , Dirk H. Rischke

We have studied the space-time evolution of minimally viscous ($\frac{\eta}{s}$=0.08) QGP fluid, undergoing boost-invariant longitudinal motion and arbitrary transverse expansion. Relaxation equations for the shear stress tensor components,…

核理论 · 物理学 2008-06-18 A. K. Chaudhuri

We calculate the two-pion correlation function for an expanding hadron source with a finite baryon density. The space-time evolution of the source is described by relativistic hydrodynamics and the Hanbury-Brown-Twiss (HBT) radius is…

核理论 · 物理学 2009-11-10 W. N. Zhang , M. J. Efaaf , Cheuk-Yin Wong , M. Khaliliasr

To extract information on hadron production dynamics in the ultrarelativistic heavy ion collision, the space-time structure of the hadron source has been measured using Hanbury Brown and Twiss interferometry. We study the distortion of the…

核理论 · 物理学 2011-02-03 Koichi Hattori

Using the newly developed hybrid model VISHNU which connects viscous hydrodynamics with a hadron cascade model, we study the differential and integrated elliptic flow v_2 at different centrality bins for 200 A GeV Au+Au collisions and 2.76…

核理论 · 物理学 2015-03-19 Huichao Song , Steffen A. Bass , Ulrich W. Heinz

Using the technique of quantum transport of the interfering pair we examine the Hanbury-Brown-Twiss (HBT) interferometry signatures for the particle-emitting sources of pions and kaons produced in the heavy ion collisions at GSI-FAIR…

高能物理 - 唯象学 · 物理学 2015-05-13 Li-Li Yu , M. J. Efaaf , Yan-Yu Ren , Wei-Ning Zhang

We consider the evolution of a spherically symmetric Quark-Gluon Plasma (QGP) drop with limited size in the framework of relativistic hydrodynamics. In the presence of the boundary, the expanding and cooling of QGP drop may appear as…

核理论 · 物理学 2008-02-03 S. P. Baranov , L. V. Fil'kov , N. A. Loktionova

Relativistic heavy ion collisions generate nuclear-sized droplets of quark-gluon plasma (QGP) that exhibit nearly inviscid hydrodynamic expansion. Smaller collision systems such as p+Au, d+Au, and $^{3}$He+Au at the Relativistic Heavy Ion…

核理论 · 物理学 2020-04-29 M. Byres , S. H. Lim , C. McGinn , J. Ouellette , J. L. Nagle
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