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Parton equilibration studies for thermally equilibrated but chemically non-equilibrated quark-gluon-plasma (QGP), likely to be formed at the relativistic colliders at BNL and CERN is presented.Parton equilibration is studied enforcing…

Nuclear Theory · Physics 2008-12-14 Abhijit Sen

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

The chemical equilibration of a highly unsaturated quark-gluon plasma has been studied at finite baryon density. It is found that in the presence of small amount of baryon density, the chemical equilibration for gluon becomes slower and the…

High Energy Physics - Phenomenology · Physics 2009-10-31 D. Dutta , K. Kumar , A. K. Mohanty , R. K. Choudhury

We investigate the processes leading to phase-space equilibration of parton distributions in nuclear interactions at collider energies. We derive a set of rate equations describing the chemical equilibration of gluons and quarks including…

Nuclear Theory · Physics 2008-11-26 T. S. Biro , E. van Doorn , B. Mueller , M. H. Thoma , X. N. Wang

We show that $\omega_B$ or $\omega_{\bar B}$, the squared baryon or antibaryon number fluctuation per baryon or antibaryon, is a possible signature for the quark-gluon plasma that is expected to be created in relativistic heavy ion…

Nuclear Theory · Physics 2009-11-07 Zi-wei Lin , C. M. Ko

The dissipative corrections to the hydrodynamic equations describing the evolution of energy-momentum tensor and parton densities are derived in a simple way using the scaling approximation for the expanding quark gluon plasma at finite…

High Energy Physics - Phenomenology · Physics 2011-07-19 D. Dutta , A. K. Mohanty , K. Kumar , R. K. Choudhury

Within the framework of a dynamical and physically transparent model developed earlier, we study the time evolution of various quark flavours in the baryon-free region in ultrarelativistic heavy ion collisions. We show that even under…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Alam , P. Roy , S. Sarkar , S. Raha , B. Sinha

The evolution and production of strangeness from chemically equilibrating and transversely expanding quark gluon plasma which may be formed in the wake of relativistic heavy ion collisions is studied with initial conditions obtained from…

Nuclear Theory · Physics 2008-11-26 Dipali Pal , Abhijit Sen , Munshi Golam Mustafa , Dinesh Kumar Srivastava

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

The chemical equilibration of the parton distribution in collisions of two heavy nuclei at the CERN Large Hadron Collider is investigated. Initial conditions are obtained from a self-screened parton cascade calculation. The onset of…

High Energy Physics - Phenomenology · Physics 2009-10-28 Dinesh Kumar Srivastava , Munshi Golam Mustafa , Berndt Müller

The equation of state of the quark gluon plasma is a key ingredient of heavy ion phenomenology. In addition to the traditional Taylor method, several novel approximation schemes have been proposed with the aim of calculating it at finite…

High Energy Physics - Lattice · Physics 2023-05-24 Szabolcs Borsanyi , Zoltan Fodor , Matteo Giordano , Jana N. Guenther , Sandor D. Katz , Attila Pasztor , Chik Him Wong

We emphasize that a knowledge of energy and entropy densities of quark gluon plasma - a thermalized de-confined matter, formed in relativistic heavy ion collisions fixes the formation temperature and the product of gluon fugacity and…

Nuclear Theory · Physics 2016-09-22 Dinesh K. Srivastava , Rupa Chatterjee , Munshi G. Mustafa

One important question in relativistic heavy ion collisions is if hadrons, specifically anti-hyperons, are in equilibrium before thermal freezeout because strangeness enhancement has long been pointed to as a signature for Quark Gluon…

Nuclear Theory · Physics 2007-05-23 J. Noronha-Hostler , C. Greiner , I. A. Shovkovy

We apply the momentum integrated Boltzmann transport equation to study the time evolution of various quark flavours in the central region of ultra-relativistic heavy ion collisions. The effects of thermal masses for quarks and gluons are…

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

We evaluate the strangeness production from equilibrating and transversely expanding quark gluon plasma which may be created in the wake of relativistic heavy ion collisions. We consider boost invariant longitudinal and cylindrically…

Nuclear Theory · Physics 2009-11-07 Dipali Pal , Abhijit Sen , Munshi G. Mustafa , Dinesh K. Srivastava

The energy loss of a fast parton scattering elastically in a weakly coupled quark-gluon plasma is formulated as an initial value problem. The approach is designed to study an unstable plasma, but it reproduces the well known result in the…

High Energy Physics - Phenomenology · Physics 2012-07-23 Margaret E. Carrington , Katarzyna Deja , Stanislaw Mrowczynski

Stimulated gluon emission and thermal absorption in addition to induced radiation are considered for an energetic parton propagating inside a quark- gluon plasma. In the presence of thermal gluons, stimulated emission reduces while…

Nuclear Theory · Physics 2014-11-18 Enke Wang , Xin-Nian Wang

The charge and baryon balance functions are studied in the coalescence hadronization mechanism of quark-gluon plasma. Assuming that in the plasma phase the $q\bar{q}$ pairs form uncorrelated clusters whose decay is also uncorrelated, one…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Bialas , J. Rafelski

We have constructed an equation of state which smoothly interpolates between an excluded volume hadron resonance gas at low energy density to a plasma of quarks and gluons at high energy density. This crossover equation of state agrees very…

Nuclear Theory · Physics 2016-09-21 J. Kapusta , M. Albright , C. Young

A hot and dense partonic system can be produced in the early stage of a relativistic heavy ion collision. How it equilibrates is important for the extraction of Quark-Gluon Plasma properties. We study the chemical and kinetic equilibrations…

Nuclear Theory · Physics 2015-05-27 Bin Zhang , Warner A. Wortman
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