Collective Phenomena in the Non-Equilibrium Quark-Gluon Plasma

Abstract

In this work we study the non-equilibrium dynamics of a quark-gluon plasma, as created in heavy-ion collisions. We investigate how big of a role plasma instabilities can play in the isotropization and equilibration of a quark-gluon plasma. In particular, we determine, among other things, how much collisions between the particles can reduce the growth rate of unstable modes. This is done both in a model calculation using the hard-loop approximation, as well as in a real-time lattice simulation combining both classical Yang-Mills-fields as well as inter-particle collisions. The new extended version of the simulation is also used to investigate jet transport in isotropic media, leading to a cutoff-independent result for the transport coefficient q-hat. The precise determination of such transport coefficients is essential, since they can provide important information about the medium created in heavy-ion collisions. In anisotropic media, the effect of instabilities on jet transport is studied, leading to a possible explanation for the experimental observation that high-energy jets traversing the plasma perpendicular to the beam axis experience much stronger broadening in rapidity than in azimuth. The investigation of collective modes in the hard-loop limit is extended to fermionic modes, which are shown to be all stable. Finally, we study the possibility of using high energy photon production as a tool to experimentally determine the anisotropy of the created system. Knowledge of the degree of local momentum-space anisotropy reached in a heavy-ion collision is essential for the study of instabilities and their role for isotropization and thermalization, because their growth rate depends strongly on the anisotropy

Ph.D. Thesis (Advisor: Carsten Greiner), 201 pages, 85 figures

References in corpus (113)

• Experimental and Theoretical Challenges in the Search for the Quark Gluon Plasma: The STAR Collaboration's Critical Assessment of the Evidence from RHIC Collisions
• Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration
• Quark Gluon Plasma an Color Glass Condensate at RHIC? The perspective from the BRAHMS experiment
• The PHOBOS Perspective on Discoveries at RHIC
• Computing Quark and Gluon Distribution Functions for Very Large Nuclei
• Gluon Distribution Functions for Very Large Nuclei at Small Transverse Momentum
• Methods for analyzing anisotropic flow in relativistic nuclear collisions
• Nonlinear Gluon Evolution in the Color Glass Condensate: I
• Radiative energy loss and $p_{\perp }$-broadening of high energy partons in nuclei
• New Forms of QCD Matter Discovered at RHIC
• The Wilson renormalization group for low x physics: towards the high density regime
• Green's Functions in the Color Field of a Large Nucleus
• The BFKL Equation from the Wilson Renormalization Group
• The QCD transition temperature: results with physical masses in the continuum limit
• Critical point of QCD at finite T and μ, lattice results for physical quark masses
• The QCD phase diagram for small densities from imaginary chemical potential
• The Renormalization Group Equation for the Color Glass Condensate
• How Much do Heavy Quarks Thermalize in a Heavy Ion Collision?
• Transverse momentum and collision energy dependence of high $p_T$ hadron suppression in Au+Au collisions at ultrarelativistic energies
• The Intrinsic Glue Distribution at Very Small x
• Disappearance of back-to-back high $p_T$ hadron correlations in central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Bottom-up thermalization in heavy ion collisions
• Photon Emission from Quark-Gluon Plasma: Complete Leading Order Results
• Thermalization of gluons in ultrarelativistic heavy ion collisions by including three-body interactions in a parton cascade
• Non-Abelian Weizsacker-Williams field and a two-dimensional effective color charge density for a very large nucleus
• Photon Emission from Ultrarelativistic Plasmas
• The Equation of State for Two Flavor QCD at Non-zero Chemical Potential
• The transition temperature in QCD
• First Measurement of the rho Spectral Function in High-Energy Nuclear Collisions
• High-p_T Tomography of d+Au and Au+Au at SPS, RHIC, and LHC
• The initial energy density of gluons produced in very high energy nuclear collisions
• Hadronic Production of Thermal Photons
• Fock Space Distributions, Structure Functions, Higher Twists and Small x
• Non-perturbative computation of gluon mini-jet production in nuclear collisions at very high energies
• Effective dynamics of soft non-abelian gauge fields at finite temperature
• QCD Plasma Instabilities and Bottom-Up Thermalization
• Collective modes of an Anisotropic Quark-Gluon Plasma II
• Centrality Dependence of Direct Photon Production in sqrt(s_NN) = 200 GeV Au+Au Collisions
• Collective non-Abelian instabilities in a melting Color Glass Condensate
• Coherent gluon production in very high energy heavy ion collisions
• Highly Sensitive Centrality Dependence of Elliptic Flow -- A Novel Signature of the Phase Transition in QCD
• The Unstable Glasma
• Apparent Thermalization due to Plasma Instabilities in Quark-Gluon Plasma
• Hard-Loop Dynamics of Non-Abelian Plasma Instabilities
• Minijet deformation and charge-independent angular correlations on momentum subspace $(\eta ,\varphi )$ in Au-Au collisions at $\sqrt{s_{NN}}$ = 130 GeV
• Characterization of the initial filamentation of a relativistic electron beam passing through a plasma
• The hot non-perturbative gluon plasma is an almost ideal colored liquid
• Bremsstrahlung and photon production in thermal QCD
• Medium Modifications of the Rho Meson at CERN/SPS Energies
• Energy Loss of Leading Hadrons and Direct Photon production in Evolving Quark-Gluon Plasma
• Classical Transport Theory and Hard Thermal Loops in the Quark-Gluon Plasma
• Hard Loop Approach to Anisotropic Systems
• Vector potential versus colour charge density in low-x evolution
• Kinetic Equations for Longwavelength Excitations of the Quark-Gluon Plasma
• Dynamics of Quark-Gluon-Plasma Instabilities in Discretized Hard-Loop Approximation
• Classical Gluodynamics of High Energy Nuclear Collisions: an Erratum and an Update
• The Fate of Non-Abelian Plasma Instabilities in 3+1 Dimensions
• Hard-Loop Effective Action for Anisotropic Plasmas
• What QCD sum rules tell about the rho meson
• Hot B violation, color conductivity, and log(1/alpha) effects
• QCD Plasma Instabilities: The Nonabelian Cascade
• The heavy-quark potential in an anisotropic plasma
• Instabilities of an anisotropically expanding non-Abelian plasma: 1D+3V discretized hard-loop simulations
• Thermalization at RHIC
• Transport rates and momentum isotropization of gluon matter in ultrarelativistic heavy-ion collisions
• Chromodynamic Weibel instabilities in relativistic nuclear collisions
• Probing the Phase Boundary between Hadronic Matter and the Quark-Gluon-Plasma in Relativistic Heavy Ion Collisions
• Saturation mechanism of the Weibel instability in weakly magnetized plasmas
• The turbulent spectrum created by non-Abelian plasma instabilities
• Dilepton Production from AGS to SPS Energies within a Relativistic Transport Approach
• Momentum Broadening in an Anisotropic Plasma
• Chern-Simons number diffusion with hard thermal loops
• Plasma Instabilities in an Anisotropically Expanding Geometry
• QCD Plasma Instabilities and Isotropization
• Photon production from an anisotropic quark-gluon plasma
• Color Diffusion and Conductivity in a Quark-Gluon Plasma
• The Abelianization of QCD Plasma Instabilities
• The equation of state for two flavor QCD at N_t=6
• A model of the effect of collisions on QCD plasma instabilities
• Ultraviolet avalanche in anisotropic non-Abelian plasmas
• Mean Field Dynamics in Non-Abelian Plasmas from Classical Transport Theory
• Low-pT Collective Flow Induces High-pT Jet Quenching
• Longitudinal Broadening of Quenched Jets in Turbulent Color Fields
• Collisional Energy Loss of a Heavy Quark in an Anisotropic Quark-Gluon Plasma
• Effective Transport Equations for non-Abelian Plasmas
• Jet broadening in unstable non-Abelian plasmas
• KLN theorem, magnetic mass, and thermal photon production
• Energy Loss of a Heavy Fermion in an Anisotropic QED Plasma
• Hard gluon damping in hot QCD
• Parton Interaction Rates in the Quark-Gluon Plasma
• Thermal photon production rate from non-equilibrium quantum field theory
• Fermionic Collective Modes of an Anisotropic Quark-Gluon Plasma
• Phases of QCD, Thermal Quasiparticles and Dilepton Radiation from a Fireball
• A Weibel Instability in the Melting Color Glass Condensate
• Equation of state and collision rate tests of parton cascade models
• The effect of finite-range interactions in classical transport theory
• Dielectric Functions and Dispersion Relations of Ultra-Relativistic Plasmas with Collisions
• Causality Violations in Cascade Models of Nuclear Collisions
• Photon polarization as a probe for quark-gluon plasma dynamics
• High pT leading hadron suppression in nuclear collisions at sqrt(s_NN) = 20 -- 200 GeV: data versus parton energy loss models
• Mass and Width of the Rho Meson in a Nuclear Medium from Brown-Rho Scaling and QCD Sum Rules
• Interpretation and resolution of pinch singularities in non-equilibrium quantum field theory
• The Phase Diagram of Strongly-Interacting Matter
• Dilepton production from hot hadronic matter in nonequilibrium
• Whitening of the Quark-Gluon Plasma
• Dilepton yields from Brown-Rho scaled vector mesons including memory effects
• The QCD equation of state at finite T/μon the lattice
• Lattice Computations of Small-x Parton Distributions in a Model of Parton Densities in Very Large Nuclei
• Isotropization by QCD Plasma Instabilities
• Quasiquarks in two stream system
• The Quark Gluon Plasma: lattice computations put to experimental test
• Quasiparticle description of the hot and dense quark-gluon plasma
• Inclusive Dilepton Production at RHIC

Cited by in corpus (5)

• Photon production from a non-equilibrium quark-gluon plasma
• Dilepton production from the quark-gluon plasma using (3+1)-dimensional anisotropic dissipative hydrodynamics
• Jet Propagation and Mach-Cone Formation in (3+1)-dimensional Ideal Hydrodynamics
• Photon and dilepton production from a non-equilibrium quark-gluon plasma
• Dynamics of wave fluctuations in the homogeneous Yang-Mills condensate