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相关论文: Fluid velocity from transverse momentum spectra

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To assess the properties of the quark-gluon plasma formed in nuclear collisions, the Pearson correlation coefficient between flow harmonics and mean transverse momentum, $\rho\left(v_{n}^{2},\left[p_{\mathrm{T}}\right]\right)$, reflecting…

核理论 · 物理学 2022-02-08 Chunjian Zhang , Jiangyong Jia , Shengli Huang

We argue that relativistic hydrodynamics is able to make robust predictions for soft particle production in Xe+Xe collisions at the CERN Large Hadron Collider (LHC). The change of system size from Pb+Pb to Xe+Xe provides a unique…

The system formed in ultrarelativistic heavy-ion collisions behaves as a nearly-perfect fluid. This collective behavior is probed experimentally by two-particle azimuthal correlations, which are typically averaged over the properties of one…

In the context of combined model of evolution-dominated hydrodynamics + leading particles, we discuss the pseudorapidity distributions of charged particles produced in p-p collisions. A comparison is made between the theoretical predictions…

核理论 · 物理学 2015-06-19 Zhi-Jin Jiang , Jie Wang , Hai-Li Zhang , Ke Ma

The generalised hydrodynamic theory of an electron gas, which does not rely on an assumption of a local equilibrium, is derived as the long-wave limit of a kinetic equation. Apart from the common hydrodynamics variables the theory includes…

软凝聚态物质 · 物理学 2009-10-31 I. Tokatly , O. Pankratov

The thermal model is commonly used in two different ways for the description of hadron production in ultra-relativistic heavy ion collision. One is the application of the thermal model to 4pi integrated data and the other is the thermal…

核理论 · 物理学 2008-11-26 J. Sollfrank

Thermodynamical description of the system created during high energy collision requires a proper thermodynamical framework to study the distribution of particles. In this work, we have attempted to explain the transverse momentum spectra of…

高能物理 - 唯象学 · 物理学 2023-01-31 Rohit Gupta , Shubhangi Jain , Satyajit Jena

Hadron spectra and elliptic flow in high-energy heavy-ion collisions are studied within a (3+1)D ideal hydrodynamic model with fluctuating initial conditions given by the AMPT Monte Carlo model. Results from event-by-event simulations are…

核理论 · 物理学 2012-09-20 Longgang Pang , Qun Wang , Xin-Nian Wang

We discuss a recently found family of exact and analytic, finite and accelerating, 1+1 dimensional solutions of perfect fluid relativistic hydrodynamics to describe the pseudorapidity densities and longitudinal HBT-radii and to estimate the…

核理论 · 物理学 2019-10-23 Gábor Kasza , Tamás Csörgő

It is argued that the use of the initial Gaussian energy density profile for hydrodynamics leads to much better uniform description of the RHIC heavy-ion data than the use of the standard initial condition obtained from the Glauber model.…

核理论 · 物理学 2008-11-25 W. Florkowski , W. Broniowski , M. Chojnacki , Adam Kisiel

Underwater explosions produce complex fluid phenomena relevant to diverse applications including maritime engineering, medical therapeutics, and inertial confinement fusion. These systems exhibit multiphase flows, chemical kinetics, and…

流体动力学 · 物理学 2025-07-02 Francis G. VanGessel , Mitul Pandya

We show that the fluctuations in the wounded-nucleon model of the initial stage of relativistic heavy-ion collisions, together with the natural assumption that the forward (backward) moving wounded nucleons emit particles preferably in the…

核理论 · 物理学 2015-03-17 Piotr Bozek , Wojciech Broniowski , Joao Moreira

The transverse momentum distributions of charged particles in p-Pb collisions as sqrt{s_{NN}} = 5.02 TeV measured by the ALICE collaboration are fitted using Tsallis statistics. The use of a thermodynamically consistent form of this…

高能物理 - 唯象学 · 物理学 2013-11-14 M. D. Azmi , J. Cleymans

We present a coupled Boltzmann and hydrodynamics approach to relativistic heavy ion reactions. This hybrid approach is based on the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) transport approach with an intermediate hydrodynamical…

高能物理 - 唯象学 · 物理学 2008-06-12 Hannah Petersen , Jan Steinheimer , Qingfeng Li , Gerhard Burau , Marcus Bleicher

We investigate how the non-extensive approach works in high-energy physics. Transverse momentum ($p_T$) spectra of several hadrons are fitted by various non-extensive momentum distributions and by the Boltzmann--Gibbs statistics.~It is…

高能物理 - 唯象学 · 物理学 2019-05-23 Keming Shen , Gergely Gábor Barnaföldi , Tamás Sándor Biró

The blast-wave (BW) spectrum model is interpreted to reveal relativistic motion (collective flow) of the hadron emission system relative to the center-of-momentum (CM) frame in high-energy A-B collisions. In essence, any spectrum deviation…

高能物理 - 唯象学 · 物理学 2022-06-17 Thomas A. Trainor

We introduce a positive definite single-particle distribution that is suitable for describing the transition from a macroscopic hydrodynamic to a microscopic kinetic description during the late stages of heavy-ion collisions in the presence…

核理论 · 物理学 2021-06-16 M. McNelis , U. Heinz

The thermodynamic properties of matter created in high-energy heavy-ion collisions have been studied in the framework of the non-extensive Tsallis statistics. The transverse momentum ($p_{\rm T}$)~spectra of identified charged particles…

高能物理 - 唯象学 · 物理学 2021-10-06 Rajendra Nath Patra , Bedangadas Mohanty , Tapan K. Nayak

We investigate the effect of flow fluctuations, incorporated in non boost-invariant blast-wave model, on kinetic freeze-out parameters of identified hadrons in low energy relativistic heavy-ion collisions. For the purpose of this study, we…

高能物理 - 唯象学 · 物理学 2023-07-12 Sudhir Pandurang Rode , Partha Pratim Bhaduri , Amaresh Jaiswal

Generalized hydrodynamic theory, which does not rest on the requirement of a local equilibrium, is derived in the long-wave limit of a kinetic equation. The theory bridges the whole frequency range between the quasistatic (Navier-Stokes)…

软凝聚态物质 · 物理学 2009-10-31 I. V. Tokatly , O. Pankratov