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Four models for the initial conditions of a fluid dynamic description of high energy heavy ion collisions are analysed and compared. We study expectation values and event-by-event fluctuations in the initial transverse energy density…

高能物理 - 唯象学 · 物理学 2020-12-01 Stefan Floerchinger , Eduardo Grossi , Kianusch Vahid Yousefnia

We investigate the possibility of selecting heavy ion collision events with certain features in the initial state ("event engineering"). Anisotropic flow measurements in heavy ion reactions have confirmed the almost ideal fluid dynamical…

核理论 · 物理学 2013-11-13 Hannah Petersen , Berndt Muller

We present a fully three-dimensional model providing initial conditions for energy and net-baryon density distributions in heavy ion collisions at arbitrary collision energy. The model includes the dynamical deceleration of participating…

核理论 · 物理学 2018-02-21 Chun Shen , Björn Schenke

We have investigated, in the frame work of the transport approach, different aspects of the QGP created in Heavy Ion Collisions at RHIC and LHC energies. The shear viscosity $\eta$ has been calculated by using the Green-Kubo relation at the…

高能物理 - 唯象学 · 物理学 2015-06-11 Salvatore Plumari , Armando Puglisi , Maria Colonna , Francesco Scardina , Vincenzo Greco

Results from the RHIC and LHC experiments show, that in relativistic heavy ion collisions, a new state of matter, a strongly interacting perfect fluid is created. Accelerating, exact and explicit solutions of relativistic hydrodynamics…

高能物理 - 唯象学 · 物理学 2017-02-14 Mate Csanad , Tamas Csorgo , Ze-Fang Jiang , Chun-Bin Yan

Understanding the properties of the quark-gluon plasma (QGP) offers insights into the strong interaction and the conditions of the early universe.Since the QGP cannot be observed directly, its properties must be inferred from the particles…

核实验 · 物理学 2025-08-20 Somadutta Bhatta

We study whether it is possible to use high-$p_\perp$ data/theory to constrain the temperature dependence of the shear viscosity over entropy density ratio $\eta/s$ of the matter formed in ultrarelativistic heavy-ion collisions at the BNL…

高能物理 - 唯象学 · 物理学 2023-11-14 Bithika Karmakar , Dusan Zigic , Igor Salom , Jussi Auvinen , Pasi Huovinen , Marko Djordjevic , Magdalena Djordjevic

We report recent progress on causal viscous hydrodynamics for relativistic heavy ion collisions. For fixed specific shear viscosity eta/s, uncertainties in the elliptic flow arising from initial conditions, equation of state, bulk viscosity…

核理论 · 物理学 2010-01-15 Huichao Song , Ulrich W. Heinz

High-energy heavy-ion collisions provide a unique opportunity to study the properties of the hot and dense strongly-interacting system composed of deconfined quarks and gluons -- the quark-gluon plasma (QGP) -- in laboratory conditions. The…

高能物理 - 实验 · 物理学 2018-08-07 Mateusz Ploskon

The initial temperature $T_{i}$, energy density $\varepsilon_{i}$, and formation time $\tau_{i}$ of the initial state of the QGP formed in the heavy ion collisions at RHIC and LHC energies are determined using the data driven Color String…

核实验 · 物理学 2015-06-11 R. P. Scharenberg

The paper is devoted to the description and prediction of various bulk observables in the Pb+Pb collisions at the LHC energy $\sqrt{s_{NN}}=5.02$ TeV within the integrated hydrokinetic model (iHKM). Sensitivity of the results to the choice…

高能物理 - 唯象学 · 物理学 2019-10-30 V. M. Shapoval , Yu. M. Sinyukov

The latest measurements of collective behaviour in a variety of collision systems with the ATLAS detector at the LHC, including pp collisions at 13 TeV, Xe+Xe collisions at 5.44 TeV, and Pb+Pb collisions at 5.02 TeV, are presented. They…

核实验 · 物理学 2021-11-22 Helena Santos

Accelerating, exact, explicit and simple solutions of relativistic hydrodynamics allow for a simple description of highly relativistic p+p collisions. These solutions yield a finite rapidity distribution, thus they lead to an advanced…

高能物理 - 唯象学 · 物理学 2017-10-19 Mate Csanad , Tamas Csorgo

Collisions of heavy ion nuclei at relativistic speeds (close to the speed of light) creates a high temperature and very dense form of matter, now known to consist of de-confined quarks and gluons, named the quark gluon plasma (QGP). In this…

高能物理 - 实验 · 物理学 2018-03-13 Raghav Kunnawalkam Elayavalli

A scheme is proposed for calculating the entropy production in highly transparent colliding systems. The formalism is continuum physical and fully conform with thermodynamics; and the calculation is explicit in entropy production. We have…

高能物理 - 唯象学 · 物理学 2016-04-28 Béla Lukács , András Ster

This dissertation focuses on the calculation of transport coefficients in the matter created in a relativistic heavy-ion collision after the chemical freeze-out. This matter can be well approximated by a pion gas out of equilibrium. We…

高能物理 - 唯象学 · 物理学 2012-05-04 Juan M. Torres-Rincon

This work presents a Bayesian inference study for relativistic heavy-ion collisions in the Beam Energy Scan program at the Relativistic Heavy-Ion Collider. The theoretical model simulates event-by-event (3+1)D collision dynamics using…

核理论 · 物理学 2026-02-03 Syed Afrid Jahan , Hendrik Roch , Chun Shen

This overview focusses on recent developments, in the most part triggered by LHC data, aimed at the development of a reliable and complete theoretical description of high-p$_t$ physics in heavy ion collisions. Particular emphasis is placed…

高能物理 - 唯象学 · 物理学 2015-06-04 José Guilherme Milhano

The $\phi$ meson and $\Omega$ baryon provide unique probes of the properties of the quark-gluon plasma (QGP) at hadronization in relativistic heavy-ion collisions. Using the quark recombination model with the quark phase-space information…

核理论 · 物理学 2024-04-18 Zhidong Yang , Yifeng Sun , Lie-Wen Chen

This study investigates Quark-Gluon Plasma (QGP) in heavy-ion collisions through two avenues: high-$p_{\perp}$ frameworks and hydrodynamic modeling. Using the T$_{\text{R}}$ENTo model, we find that IP-Glasma mimicking $p=0$ value aligns…

高能物理 - 唯象学 · 物理学 2024-03-27 Bithika Karmakar , Dusan Zigic , Pasi Huovinen , Marko Djordjevic , Magdalena Djordjevic , Jussi Auvinen