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Quark–gluon plasma is an extremely hot and dense state of matter in which the elementary constituents – quarks and gluons – are not confined inside composite particles called hadrons, as they are in t...
Unlike electrons, quarks cannot wander freely in ordinary matter. They are confined by the strong force within hadrons such as the protons and neutrons that make up atomic nuclei. However, at very hig...
Scientists make first detection of exotic “X” particles in quark-gluon plasma（图）
夸克 胶子 等离子体 “X”粒子
2023/6/9
In the first millionths of a second after the Big Bang, the universe was a roiling, trillion-degree plasma of quarks and gluons — elementary particles that briefly glommed together in countless combin...
Using particle accelerators to investigate the quark-gluon plasma of the infant universe
QGP atom neutron
2021/8/10
A new special edition of EPJ Special Topics brings together several papers that detail our understanding of Quark-Gluon Plasma (QGP) and the processes that transformed it into the baryonic matter we a...
'Perfect Liquid' Quark-Gluon Plasma is the Most Vortical Fluid（图）
Perfect Liquid Quark-Gluon Plasma Most Vortical Fluid
2017/9/1
Particle collisions recreating the quark-gluon plasma (QGP) that filled the early universe reveal that droplets of this primordial soup swirl far faster than any other fluid. The new analysis of data ...
Experimental equation of state in proton-proton and proton-antiproton collisions and phase transition to quark gluon plasma
quark gluon plasma average transverse momentum vs pseudorapidity density
2011/7/21
We deduce approximate equations of state from experimental measurements in proton-proton and proton-antiproton collisions.
Heavy-Quark Diffusion and Hadronization in Quark-Gluon Plasma
Heavy Quark Diffusion Quark Gluon Plasma Quark Recombination
2011/7/20
We calculate diffusion and hadronization of heavy quarks in high-energy heavy-ion collisions implementing the notion of a strongly coupled quark-gluon plasma in both micro- and macroscopic components....
Momentum dependence of drag coefficients and heavy flavour suppression in quark gluon plasma
Momentum dependence heavy flavour suppression
2011/7/20
The momentum dependence of the drag coefficient of heavy quarks propagating through quark gluon plasma (QGP) has been evaluated. The results have been used to estimate the nuclear suppression factor o...
Thermal processes generated in quark-gluon plasma by yoctosecond laser pulses
QGP thermal waves yoctosecond pulses
2011/8/2
Abstract: In this paper the thermal processes generated by yoctosecond (10-24 s) laser pulses in QGP are investigated. Considering that the relaxation time in QGP is of the order of 1 ys it is shown t...
Spatially Modulated Phase in Holographic Quark-Gluon Plasma
Spatially Modulated Phase Holographic Quark-Gluon Plasma
2010/12/24
We present a string theory construction of a gravity dual of a spatially modulated phase. In our earlier work, we showed that the Chern-Simons term in the 5-dimensional Maxwell theory destabilizes th...
Spatially Modulated Phase in Holographic Quark-Gluon Plasma
Spatially Modulated Phase Holographic Quark-Gluon Plasma
2010/12/21
We present a string theory construction of a gravity dual of a spatially modulated phase. In
our earlier work, we showed that the Chern-Simons term in the 5-dimensional Maxwell theory
destabilizes t...
Bulk and shear viscosities of the gluon plasma in a quasiparticle description
gluon plasma bulk viscosity shear viscosity quasiparticle model effective kinetic theory
2011/1/10
Bulk and shear viscosities of deconfined gluonic matter are investigated within an effective kinetic theory by describing the strongly interacting medium phenomenologically in terms of quasiparticle e...
Spatially Modulated Phase in Holographic Quark-Gluon Plasma
Spatially Modulated Phase Holographic Quark-Gluon Plasma
2011/1/10
We present a string theory construction of a gravity dual of a spatially modulated phase. In
our earlier work, we showed that the Chern-Simons term in the 5-dimensional Maxwell theory
destabilizes t...
How Perfect a Gluon Plasma Can Be in Perturbative QCD?
Gluon Plasma Can Be Perturbative QCD
2011/1/10
The shear viscosity to entropy density ratio, /s, characterizes how perfect a fluid is. We calculate the leading order /s of a gluon plasma in perturbation using the kinetic theory. The leading orde...
We consider the evolution of a flat, isotropic and homogeneous Friedmann-Robertson-Walker Universe, filled with a causal bulk viscous cosmological fluid, that can be characterized by an ultra-relativi...