Search results for "plasmon mass"

showing 3 items of 3 documents

Plasmon mass scale in two dimensional classical nonequilibrium gauge theory

2018

We study the plasmon mass scale in weakly coupled strongly interacting nonabelian gauge theory in a two dimensional configuration that mimics the boost invariant initial color fields in a heavy ion collision. We numerically measure the plasmon mass scale using three different methods: a Hard Thermal Loop (HTL) expression involving the quasiparticle spectrum constructed from Coulomb gauge field correlators, an effective dispersion relation and the measurement of oscillations between electric and magnetic energies after introducing a spatially uniform perturbation to the electric field. We find that the hard thermal loop expression and the uniform electric field measurement are in rough agree…

Non-equilibrium thermodynamicsFOS: Physical sciencesplasmon massHEAVY-ION COLLISIONShiukkasfysiikkaGLUON PRODUCTION114 Physical sciences01 natural sciencesPower lawINSTABILITIESHigh Energy Physics - LatticeHigh Energy Physics - Phenomenology (hep-ph)Dispersion relationElectric field0103 physical sciencesGauge theory010306 general physicsPlasmonGauge fixingPhysicsta114010308 nuclear & particles physicsHigh Energy Physics - Lattice (hep-lat)ISOTROPIZATIONheavy-ion collisionsFLUCTUATIONSEVOLUTIONLATTICEHigh Energy Physics - Phenomenologygauge theoryQuantum electrodynamicsQuasiparticleGLASMA
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Plasmon mass scale in classical nonequilibrium gauge theory

2017

Classical lattice Yang-Mills calculations provide a good way to understand different nonequilibrium phenomena in nonperturbatively overoccupied systems. Above the Debye scale the classical theory can be matched smoothly to kinetic theory. The aim of this work is to study the limits of this quasiparticle picture by determining the plasmon mass in classical real time Yang-Mills theory on a lattice in 3 spatial dimensions. We compare three methods to determine the plasmon mass: a hard thermal loop expression in terms of the particle distribution, an effective dispersion relation constructed from fields and their time derivatives, and by measuring oscillations between electric and magnetic fiel…

Nuclear TheoryFOS: Physical sciencesplasmon massHEAVY-ION COLLISIONS114 Physical sciences01 natural sciencesNuclear Theory (nucl-th)symbols.namesakeHigh Energy Physics - Phenomenology (hep-ph)INSTABILITIESHigh Energy Physics - LatticeElectric fieldDispersion relationQuantum mechanics0103 physical sciencesGauge theory010306 general physicsPlasmonYang-Mills theoryDebyePhysicsta114010308 nuclear & particles physicsHigh Energy Physics - Lattice (hep-lat)ISOTROPIZATIONMagnetic fieldLattice (module)High Energy Physics - PhenomenologysymbolsQuasiparticle
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Quasiparticle properties of nonequilibrium gluon plasma

2018

We apply classical gluodynamics to early stages of ultrarelativistic heavy-ion collisions. We start by giving a brief overview of QCD. Then we proceed to the space-time evolution of ultrarelativistic heavy-ion collisions in the color glass condensate framework and go through the basics of real-time gluodynamics on the lattice in the temporal gauge. We study the plasmon mass scale in three- and two-dimensional systems by comparing three different methods to measure the mass scale. The methods are a formula which can be derived from Hard Thermal Loop effective theory at leading order (HTL), the effective dispersion relation (DR) and measurement of the plasma oscillation frequency triggered by th…

thermalizationnonequilibriumkvarkki-gluoniplasmalattice field theoryquasiparticleplasmon masshiukkasfysiikkahigh energy physicsclassical Yang-Mills theoryplasmonitplasmonquantum chromodynamicsnuclear theorylattice gauge theorykvanttiväridynamiikkakvanttikenttäteoriaclassical field theory
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