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A central question in heavy-ion collisions is how the initial far-from-equilibrium medium evolves and thermalizes while it undergoes a rapid longitudinal expansion. In this work we use the two-particle irreducible (2PI) effective action for…

高能物理 - 唯象学 · 物理学 2025-04-08 François Gelis , Sigtryggur Hauksson

Nonlinear propagation of purely stationary large amplitude electromagnetic (EM) solitary waves in a magnetized electron-positron (EP) plasma is studied using a fully relativistic two-fluid hydrodynamic model which accounts for physical…

等离子体物理 · 物理学 2021-05-04 Gadadhar Banerjee , Sayantan Dutta , A. P. Misra

The nonextensive parameter for nonequilibrium electron gas in a magnetic field of plasma is studied. We exactly obtained an expression of the q-parameter based on Boltzmann kinetic theories for plasmas, where Coulombian interactions and…

等离子体物理 · 物理学 2014-08-13 Yu Haining , Du Jiulin

One-dimensional steady-state plasma-field structures in overdense plasma are studied assuming that the electron temperature is uniform over plasma bulk and the ions are stationary. It is shown that there may exist solutions for electron…

等离子体物理 · 物理学 2020-06-03 A. V. Korzhimanov , A. V. Kim

Dusty plasma can exist in a wide range, from the laboratory to Saturn's rings. The coupling parameter plays a very important role in diagnosing dusty plasma. There are two ways to deal analytically with the effect of coupling in plasma.…

等离子体物理 · 物理学 2023-11-29 J. Goswami , S. S. Kausik

Interaction of an intense electromagnetic (EM) beam with hot relativistic plasma is investigated. It is shown that the thermal pressure brings about a fundamental change in the dynamics - localized, high amplitude, EM field structures, not…

等离子体物理 · 物理学 2009-11-07 V. I. Berezhiani , S. M. Mahajan , Z. Yoshida , M. Ohhashi

Starting from a nonequilibrium configuration we analyse the essential role of the direct and the inverse binary and triple interactions in reaching an asymptotic thermal equilibrium in a homogeneous isotropic electron-positron-photon…

等离子体物理 · 物理学 2007-09-26 A. G. Aksenov , R. Ruffini , G. V. Vereshchagin

A non-relativistic multi-fluid plasma axisymmetric equilibrium model was developed recently to account for the presence of an energetic electron fluid in addition to thermal electron and ion fluids. The equilibrium formulation of a…

等离子体物理 · 物理学 2021-03-31 Akio Ishida , Y. -K. Martin Peng , Wenjun Liu

A Fermi statistical model analysis of hadron abundances and spectra obtained in several relativistic heavy ion collision experiments is utilized to characterize a particle source. Properties consistent with a disintegrating, hadron…

核理论 · 物理学 2007-05-23 Johann Rafelski , Jean Letessier

Besides being one of the most fundamental basic issues of plasma physics, the stability analysis of an electron beam-plasma system is of critical relevance in many areas of physics. Surprisingly, decades of extensive investigation had not…

等离子体物理 · 物理学 2009-11-13 A. Bret , L. Gremillet , D. Benisti , E. Lefebvre

Ultrarelativistic collisions of large nuclei produce a short-lived plasma of deconfined quarks and gluons. Of all the GeV-energy photons detected in these nuclear collisions, only a small number are emitted directly by the quark-gluon…

核理论 · 物理学 2022-05-26 Jean-François Paquet , Steffen A. Bass

Two distinct routes lead to the creation of multi--scale equilibrium structures in dense degenerate plasmas, often met in astrophysical conditions. By analyzing an e-p-i plasma consisting of degenerate electrons and positrons with a small…

太阳与恒星天体物理 · 物理学 2016-02-03 N. L. Shatashvili , S. M. Mahajan , V. I. Berezhiani

I review the origin and properties of electromagnetic fields produced in heavy ion collisions. The field strength immediately after a collision is proportional to the collision energy and reaches eB\sim(m_\pi)^2 at RHIC and eB\sim10…

高能物理 - 唯象学 · 物理学 2013-01-21 Kirill Tuchin

I discuss several roles of the strong electromagnetic fields created by relativistic heavy-ion collisions. These phenomena call for theoretical and experimental developments to understand dynamics of quark-gluon plasma (QGP) as well as…

高能物理 - 唯象学 · 物理学 2026-02-09 Koichi Hattori

The electromagnetic form factor of the pion in the space-like region, and at finite temperature, $F_{\pi}(Q^{2},T)$, is obtained from a QCD Finite Energy Sum Rule. The form factor decreases with increasing T, and vanishes at some critical…

高能物理 - 唯象学 · 物理学 2009-10-28 C. A. Dominguez , M. Loewe , J. S. Rozowsky

We describe quark matter in the framework of non-extensive thermodynamics. We point out that partcile spectra with power-law tail lead to an increased energy and entropy per particle. This way even a massless plasma may give E/N = 1 GeV at…

高能物理 - 唯象学 · 物理学 2007-05-23 T. S. Biro , G. Purcsel

We describe the quark gluon plasma (QGP) as a thermalized quark-gluon system, the thermalized QGP phase of QCD. The hadronization of the thermalized QGP phase is given in a way resembling a coalescence model with correlated quarks and…

高能物理 - 唯象学 · 物理学 2014-11-17 A. Ya. Berdnikov , Ya. A. Berdnikov , A. N. Ivanov , V. A. Ivanova , V. F. Kosmach , V. M. Samsonov , N. I. Troitskaya

An important question in heavy-ion collisions is how the initial far-from-equilibrium medium evolves and thermalizes while it undergoes a rapid longitudinal expansion. In this presentation, we show how to use the two-particle irreducible…

核理论 · 物理学 2025-09-23 Francois Gelis

Ultra-relativistic electromagnetic plasmas can be used for improving our understanding of the quark-gluon plasma. In the weakly coupled regime both plasmas can be described by transport theoretical and quantum field theoretical methods…

高能物理 - 唯象学 · 物理学 2015-05-13 Markus H. Thoma

A static quadrupole potential breaks the cylindrical symmetry of the effective potential of a linear rf trap. For a one-component fluid plasma at low temperature, the resulting equilibrium charge distribution is predicted to be an…

等离子体物理 · 物理学 2009-11-10 U. Fröhlich , B. Roth , S. Schiller