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Studying the thermodynamics of the systems produced in ultra-relativistic heavy-ion collisions is crucial in understanding the QCD phase diagram. Recently, a new avenue has opened regarding the implications of large initial angular momentum…

高能物理 - 唯象学 · 物理学 2024-09-18 Kshitish Kumar Pradhan , Bhagyarathi Sahoo , Dushmanta Sahu , Raghunath Sahoo

We calculate initial conditions for the hydrodynamical evolution in ultrarelativistic heavy-ion collisions at the LHC and RHIC in an improved next-to-leading order perturbative QCD + saturation framework. Using viscous relativistic…

高能物理 - 唯象学 · 物理学 2015-06-18 R. Paatelainen , K. J. Eskola , H. Holopainen , H. Niemi , K. Tuominen

Due to large pressure gradients at early times, standard hydrodynamic model simulations of relativistic heavy-ion collisions do not become reliable until $O(1)$\,fm/$c$ after the collision. To address this one often introduces a…

核理论 · 物理学 2023-03-10 Dananjaya Liyanage , Özge Sürer , Matthew Plumlee , Stefan M. Wild , Ulrich Heinz

We use a hybrid model which relies on QCD effective kinetic theory -- K\oMP\oST -- to dynamically bridge the gap between IP-Glasma initial states and viscous hydrodynamics, for the theoretical interpretation of heavy-ion collision results.…

高能物理 - 唯象学 · 物理学 2021-02-03 Charles Gale , Jean-François Paquet , Björn Schenke , Chun Shen

The hadronization of an expanding partonic fireball is studied within the Parton-Hadron-Strings Dynamics (PHSD) approach which is based on a dynamical quasiparticle model (DQPM) matched to reproduce lattice QCD results in thermodynamic…

高能物理 - 唯象学 · 物理学 2008-11-26 W. Cassing , E. L. Bratkovskaya

These proceedings present recent results from transport-hydrodynamics-hybrid models for heavy ion collisions at relativistic energies. The main focus is on the absorption of (anti-)protons in the hadronic afterburner stage of the reaction,…

核理论 · 物理学 2015-03-26 Marcus Bleicher , Stephan Endres , Jan Steinheimer , Hendrik van Hees

The (viscous) anisotropic hydrodynamic approach, especially after perturbative inclusion of all residual viscous terms, has been shown to dramatically outperform viscous hydrodynamics in several simplified situations for which exact…

核理论 · 物理学 2018-03-14 Dennis Bazow , Ulrich W. Heinz , Michael Strickland

A comprehensive viscous hydrodynamic fit of spectra and elliptic flow for charged hadrons and identified pions and protons from Au+Au collisions of all centralities measured at the Relativistic Heavy Ion Collider is performed and used as…

核理论 · 物理学 2012-10-08 Chun Shen , Ulrich W. Heinz , Pasi Huovinen , Huichao Song

In this thesis, we make progress in two concrete directions in the vast landscape of hot QCD physics. The first one is quarkonium transport inside quark-gluon plasma (QGP), the high temperature phase of QCD. Over the past two decades it has…

高能物理 - 唯象学 · 物理学 2024-12-31 Bruno Sebastian Scheihing-Hitschfeld

We derive the multi-component second-order dissipative relativistic hydrodynamic equations using the moment-expansion method. By computing the transport coefficients using hard-sphere interactions, we investigate the role of multiple…

高能物理 - 唯象学 · 物理学 2022-07-15 Jin Hu , Shuzhe Shi

In this article, we present a state-of-the-art algorithm for solving the relativistic viscous hydrodynamics equation with the QCD equation of state. The numerical method is based on the second-order Godunov method and has less numerical…

核理论 · 物理学 2015-06-12 Yukinao Akamatsu , Shu-ichiro Inutsuka , Chiho Nonaka , Makoto Takamoto

Heavy-ion collisions at BNL's Relativistic Heavy Ion Collider and CERN's Large Hadron Collider provide strong evidence for the formation of a quark-gluon plasma, with temperatures extracted from relativistic viscous hydrodynamic simulations…

高能物理 - 理论 · 物理学 2021-08-18 Jürgen Berges , Michal P. Heller , Aleksas Mazeliauskas , Raju Venugopalan

Non-diffusive, fluid-like transport of charge and heat has been observed in several materials, raising the question of whether they can emerge simultaneously and how they are related to bi-component electron-phonon fluids. Here we introduce…

介观与纳米尺度物理 · 物理学 2026-03-23 Jennifer Coulter , Bogdan Rajkov , Michele Simoncelli

The transport properties of the strongly-coupled quark-gluon plasma created in ultra-relativistic heavy-ion collisions are extracted by Bayesian parameter estimate methods with the latest collision beam energy data from LHC. This Bayesian…

高能物理 - 唯象学 · 物理学 2021-11-17 J. E. Parkkila , A. Onnerstad , D. J. Kim

Relativistic hydrodynamics has been quite successful in explaining the collective behaviour of the QCD matter produced in high energy heavy-ion collisions at RHIC and LHC. We briefly review the latest developments in the hydrodynamical…

核理论 · 物理学 2016-10-28 Amaresh Jaiswal , Victor Roy

In this review we address the dynamics of relativistic heavy-ion reactions and in particular the information obtained from electromagnetic probes that stem from the partonic and hadronic phases. The out-of-equilibrium description of…

核理论 · 物理学 2016-02-17 O. Linnyk , E. L. Bratkovskaya , W. Cassing

We present algorithms to solve relativistic hydrodynamics in 3+1--dimensional situations without apparent symmetry to simplify the solution. In simulations of heavy--ion collisions, these numerical schemes have to deal with the physical…

核理论 · 物理学 2009-10-28 Dirk H. Rischke , Stefan Bernard , Joachim A. Maruhn

In this dissertation I introduce relativistic heavy ion collisions and describe theoretical approaches to understanding them--in particular, viscous hydrodynamic simulations and investigations of final state interactions. The successful…

核理论 · 物理学 2009-08-31 Matthew Luzum

Assuming that the Hagedorn fluid composed of known particles and resonances with masses $m<2\,$GeV obeys the {\it first-order} theory (Eckart) of relativistic fluid, we discuss the transport properties of QCD confined phase. Based on the…

高能物理 - 唯象学 · 物理学 2010-11-24 A. Tawfik , M. Wahba

I review the recent progress in measuring elliptic flow in heavy ion collisions. These measurements show clearly how hydrodynamics starts to develop as the system size is increased from peripheral to central collisions. During this…

核理论 · 物理学 2009-11-18 Derek Teaney