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In-medium interactions of a particle in a hot plasma are considered in the framework of thermal field theory. The formalism to calculate gauge invariant rates for photon and dilepton production from the medium is given. In the application…

High Energy Physics - Phenomenology · Physics 2009-10-28 E. Quack , P. A. Henning

We study dilepton production from a thermally equilibrating quark-gluon plasma expected to be formed in ultra relativistic heavy-ion collisions. The pre-equilibrium dynamics of quark-gluon plasma is studied within the color flux-tube model…

High Energy Physics - Phenomenology · Physics 2009-10-31 Gouranga C Nayak

A set of coupled kinetic equations describing in the Abelian approximation a mixture of quarks and self-interacting gluons is formulated and solved numerically. The model includes the Schwinger-like mechanism for particle creation in a…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. V. Skokov , S. A. Smolyansky , V. D. Toneev

We describe aspects of particle creation in strong fields using a quantum kinetic equation with a relaxation-time approximation to the collision term. The strong electric background field is determined by solving Maxwell's equation in…

Nuclear Theory · Physics 2007-05-23 A. V. Prozorkevich , D. V. Vinnik , S. M. Schmidt , M. B. Hecht , C. D. Roberts

We present a comprehensive approach to the dynamics of heavy quarks in a quark gluon plasma, including the possibility of bound state formation and dissociation. In this exploratory paper, we restrict ourselves to the case of an Abelian…

Nuclear Theory · Physics 2016-01-20 Jean-Paul Blaizot , Davide De Boni , Pietro Faccioli , Giovanni Garberoglio

We aim to describe the process of dissociation and recombination of quarkonia in the quark-gluon plasma. Therefore we developed a model which allows to observe the time evolution of a system with various numbers of charm-anticharm-quark…

Nuclear Theory · Physics 2018-09-21 C. Greiner , N. Krenz , H. van Hees

A general scheme is proposed here to describe the production of semi soft and soft quarks and gluons that form the bulk of the plasma in ultra relativistic heavy ion collisions. We show how to obtain rates as a function of time in a self…

Nuclear Theory · Physics 2009-11-07 Ambar Jain , V. Ravishankar

Based on the kinetic theory, the non-Abelian medium property of hot Quark-Gluon Plasma is investigated. The nonlinearity of the plasma comes from two aspects: The nonlinear wave-wave interaction and self-interaction of color field. The…

High Energy Physics - Phenomenology · Physics 2009-11-07 Ji-sheng Chen , Jia-rong Li , Peng-fei Zhuang

Thermalization of quark-gluon plasmas in heavy-ion collisions is a difficult theoretical problem. One theoretical goal has been to understand the physics of thermalization in the relatively simplifying limit of arbitrarily high energy…

High Energy Physics - Phenomenology · Physics 2008-11-26 Peter Arnold , Guy D. Moore

We study the equilibration of a parton plasma in terms of its parton compositions and its state of thermalization. In studying the evolution of the plasma, one has to assume a small value of the strong coupling constant. This value is by no…

Nuclear Theory · Physics 2007-05-23 S. M. H. Wong

We compute dilepton production from the deconfined phase of the quark-gluon plasma using leading-order (3+1)-dimensional anisotropic hydrodynamics. The anisotropic hydrodynamics equa- tions employed describe the full spatiotemporal…

Nuclear Theory · Physics 2015-07-23 Radoslaw Ryblewski , Michael Strickland

Imposing an equilibrium between the thermal pressure of deconfined quarks and gluons and the dynamical compression pressure exercised by in-flowing nuclear matter, we study the initial thermal conditions reached in a quark-gluon plasma…

High Energy Physics - Phenomenology · Physics 2009-10-30 Jean Letessier , Jan Rafelski , Ahmed Tounsi

We calculate the rate for thermal production of axions via scattering of quarks and gluons in the primordial quark-gluon plasma. To obtain a finite result in a gauge-invariant way that is consistent to leading order in the strong gauge…

High Energy Physics - Phenomenology · Physics 2011-04-21 Peter Graf , Frank Daniel Steffen

The relativistic Fokker Planck equation has been used to study the evolution of the quark distribution in the quark gluon phase expected to be formed in ultra-relativistic heavy ion collisions. The effect of thermal masses for quarks and…

Nuclear Theory · Physics 2009-10-30 Pradip Roy , Jane Alam , Sourav Sarkar , Bikash Sinha , Sibaji Raha

We study the production of photons from a quark gluon plasma in local thermal equilibrium by introducing a non-perturbative formulation of the real time evolution of the density matrix. The main ingredient is the real time effective action…

High Energy Physics - Phenomenology · Physics 2011-07-19 Daniel Boyanovsky , Hector J. de Vega

It is shown that the long wavelength excitations of a quark-gluon plasma may be described as collective oscillations of self-consistent average fields to which the plasma particles couple. Their properties are obtained from a set of coupled…

High Energy Physics - Phenomenology · Physics 2007-05-23 Edmond Iancu

Pressure isotropization of an equilibrating quark-gluon plasma produced in relativistic heavy ion collisions is studied within the framework of a multi-phase transport model (AMPT). The time evolution of the bulk properties of the…

Nuclear Theory · Physics 2008-05-06 Bin Zhang , Lie-Wen Chen , Che Ming Ko

The quark-gluon plasma, which is produced at an early stage of ultrarelativistic heavy-ion collisions, is expected to be initially strongly populated with chromodynamic fields. We address the question how heavy quarks interact with such a…

Nuclear Theory · Physics 2018-04-18 Stanislaw Mrowczynski

We consider the meson and baryon production in the quark-gluon plasma as applied to the early Universe and ultrarelativistic heavy ion collisions in collider. The essential feature of our investigation is to take into account a potential…

Nuclear Theory · Physics 2020-04-16 Yuriy Ostapov

We present a unified description of the high temperature phase of QCD, the so-called quark-gluon plasma, in a regime where the effective gauge coupling $g$ is sufficiently small to allow for weak coupling calculations. The main focuss is…

High Energy Physics - Phenomenology · Physics 2009-11-07 Jean-Paul Blaizot , Edmond Iancu
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