Matter Formed at the BNL Relativistic Heavy Ion Collider

Brown, G. E.; Gelman, Boris A.; Rho, Mannque

doi:10.1103/physrevlett.96.132301

Cited by 30 publications

(35 citation statements)

References 31 publications

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“…In case of the gluon-gluon clusters we can even speak about gluon-gluon bound states, i.e., glueballs, at temperatures just above the phase transition. The possible existence of medium-modified mesonlike bound states was actively discussed some time ago [66,67]. Our result supports the conclusion of Ref.…”

Section: Discussionsupporting

confidence: 91%

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Color path-integral Monte-Carlo simulations of quark-gluon plasma: Thermodynamic and transport properties

et al. 2013

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Based on the quasiparticle model of the quark-gluon plasma (QGP), a color quantum path-integral Monte-Carlo (PIMC) method for the calculation of thermodynamic properties and-closely related to the latter-a Wigner dynamics method for calculation of transport properties of the QGP are formulated. The QGP partition function is presented in the form of a color path integral with a new relativistic measure instead of the Gaussian one traditionally used in the Feynman-Wiener path integral. A procedure of sampling color variables according to the SU(3) group Haar measure is developed for integration over the color variable. It is shown that the PIMC method is able to reproduce the lattice QCD equation of state at zero baryon chemical potential at realistic model parameters (i.e., quasiparticle masses and coupling constant) and also yields valuable insight into the internal structure of the QGP. Our results indicate that the QGP reveals quantum liquidlike (rather than gaslike) properties up to the highest considered temperature of 525 MeV. The pair distribution functions clearly reflect the existence of gluon-gluon bound states, i.e., glueballs, at temperatures just above the phase transition, while mesonlike qq bound states are not found. The calculated self-diffusion coefficient agrees well with some estimates of the heavy-quark diffusion constant available from recent lattice data and also with an analysis of heavy-quark quenching in experiments on ultrarelativistic heavy-ion collisions, however, appreciably exceeds other estimates. The lattice and heavy-quark-quenching results on the heavy-quark diffusion are still rather diverse. The obtained results for the shear viscosity are in the range of those deduced from an analysis of the experimental elliptic flow in ultrarelativistic heavy-ions collisions, i.e., in terms the viscosity-to-entropy ratio, 1/4π η/S < 2.5/4π , in the temperature range from 170 to 440 MeV.

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Section: Discussionsupporting

confidence: 91%

“…[65] and later in Refs. [66,67] based on results from lattice QCD calculations of spectral functions [68,69]. Our result supports conclusion of Ref.…”

Section: A Equilibrium Propertiessupporting

confidence: 91%

Color path-integral Monte-Carlo simulations of quark-gluon plasma: Thermodynamic and transport properties

et al. 2013

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“…In a very recent article Gerry Brown and collaborators posed a critical question on the results of the recent heavy ion experiments at Brookhaven National Laboratory. Therein they indicate the nature of the high temperature state by the statement [120]: "We suggest that the new form of matter found just above T c by the Relativistic Heavy Ion Collider is made up of tightly bound quark-antiquark pairs,..." Their observation gives further motivation for the present investigations of the correlations and interactions at temperatures above T c .…”

Section: Vi3 Applications To Physical Processesmentioning

confidence: 86%

Lattice QCD calculations for the physical equation of state

Miller

2007

Physics Reports

119

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ABSTRACT:In this report we consider the numerical simulations at finite temperature using lattice QCD data for the computation of the thermodynamical quantities including the pressure, energy density and the entropy density. These physical quantities can be related to the equation of state for quarks and gluons. We shall apply the lattice data to the evaluation of the specific structure of the gluon and quark condensates at finite temperature in relation to the deconfinement and chiral phase transitions. Finally we mention the quantum nature of the phases at lower temperatures.

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“…5 The nature of the new form of matter discovered is not known and a variety of models has been proposed to treat its properties. [6][7][8][9][10] The importance of the experimental discoveries at RHIC is that the matter is strongly correlated and reveals a high degree of coherence when it is well beyond the critical values of density and temperature.…”

Section: Introductionmentioning

confidence: 99%