Equilibrium and Non-equilibrium aspects of hot, dense QCD
July 17-30, 2000
A RIKEN BNL Research Center & BNL Nuclear Theory Workshop
Brookhaven National Laboratory
Upton, NY, USA
11: Yaffe. 2:15: Braaten. 4:30: Danielewicz.
11: Rajagopal. 2:15: Kobes. 4:30: Arnold.
11:30: Special! Announcement of Phobos results: Berkner Auditorium 11:30-12:30
2:15: Weldon. 4:30: Baier
11: Mueller. 2:15: Kunihiro. 4:30, Kajantie
Barbecue: 6-9, BNL Center
11: de Vega. 2:15: Zhitnitsky.
11: Stephanov. 2:15: Rischke. 4:30: Fraga.
11: Mottola. 2:15: Rebhan. 4:30: Cooper.
11: Bodeker. 3:30: Nair
11: Venugopalan. 2:15: Strickland. 4:30: Tytgat.
11: Shuryak. 2:15: McLerran
Hot Scalar Theories in Large N: Bose-Einstein Condensation
Resonant Decay of Parity Odd Bubbles in Hot Hadronic Matter
Hard Thermal Loops on the Lattice
Thermodynamics of Hot QCD
Simulations of the chiral phase transition on both sides of the tricritical point
Low-Momentum Correlation from Real-Time Theory
Non-equilibrium Quantum Plasmas, Quantum Kinetics and the Dynamical Renormalization Group.
Quark stars from perturbative QCD
Thermodynamics of Hot QCD; the Effective Theory Approach
Calculating Viscosity
The Renormalization Group Method Applied to Kinetic Equations
Concluding Remarks
The Electrical Conductivity of a QED Plasma
The Quantum Limit of Classical Field Dynamics
Covariance and Magnetic Mass
Traversing the QCD Phase Transition: Quenching, Slowing, or Bubbling Out of Equilibrium
Hard-thermal/dense-loop Thermodynamics of the Quark-gluon Plasma
Properties of Gluons in Color Superconductors
Decrease of the Non-peturbative Cutoff in QCP at RHIC
QCD at Finite Density of Isospin
HTL Peturbation Theory
QCD at Theta=Pi
Solving the Prolbem of Initial Conditions in Heavy Ion Collisions: from the Nuclear Wave Function to a Gluon Plasma
A Space-Time View of Thermal Field Theory
Non-perturbative Dynamics of Hot Non-Abelian Gauge Fields
Early Universe at the QCD scale
* Critically discuss and compare the present perturbative and non-perturvbative approaches to quantum field theory methods in and out of equilibrium: transport and kinetics for GQ plasma at high energy and baryon density including the latest developments. A summary of the present state of the art both in equilibrium and non-equilibrium quantum field theory, an overview of future research avenues and to establish an effort to translate methods from equilibrium to non-equilibrium.
* Color superconductivity, and hard dense loops, potential experimental signatures of the QCD phase diagram in the T-m plane, collective excitations in dense plasmas. Dense phases of neutron stars and potential observational consequences.
* Small x physics, and parton equilibration and cascades. Infrared divergences and their resummation. Renormalization group approach to transport phenomena.
* Real time dynamics on the lattice: a true non-perturbative framework to study relaxation, thermalization, particle production and evolution of parton distribution functions directly from QCD in real time.
There will be two or three seminars per day. The seminars will be no more than one hour in length, plus one half hour for discussions. The main purpose of the workshop is to provide an atmosphere that will lead to interaction and discussions with selected talks.
| Organizers: | Hector de Vega (Univ. of Paris VI) | |
| Dan Boyanovsky (Univ. of Pittsburgh) | ||
| Dirk Rischke (RIKEN/BNL Research Center) | ||
| Tammy Heinz, Conference Secretary, RBRC |
The Relativistic Heavy Ion Collider (RHIC) at Brookhaven, beginning operation this year, and the Large Hadron Collider (LHC) at CERN, beginning operation ~2005, will provide an unprecedented range of energies and luminosities that will allow us to probe the Gluon-Quark plasma.
At RHIC and LHC, at central rapidity typical estimates of energy densities and temperatures are e * 1 -10 GeV/fm3 and T0 * 300 - 900 MeV. Such energies are well above current estimates for the GQ plasma. Initially, this hot, dense plasma is far from local thermal equilibrium, making the theoretical study of transport phenomena, kinetic and chemical equilibration in dense and hot plasmas, and related issues a matter of fundamental importance.
During the last few years a consistent framework to study collective effects in the Gluon-Quark plasma, and a microscopic description of transport in terms of the hard thermal (and dense) loops resummation program has emerged. This approach has the potential of providing a microscopic formulation of transport, in the regime of temperatures and densities to be achieved at RHIC and LHC. A parallel development over the last few years has provided a consistent formulation of non-equilibrium quantum field theory that provides a real-time description of phenomena out of equilibrium. Novel techniques including non-perturbative approaches and the dynamical renormalization group techniques lead to new insights into transport and relaxation. A deeper understanding of collective excitations and transport phenomena in the GQ plasma could lead to recognize novel potential experimental signatures. New insights into small-c physics reveals a striking similarity between small-c and hard thermal loops, and novel real-time numerical simulations have recently studied the parton distributions and their thermalizations in the initial stages of a heavy ion collision.
Recently new exciting theoretical developments in understanding cold dense plasmas revealed the possibility of novel phases of dense quark matter in which color superconductivity can occur and novel features of the possible phase diagram of QCD in the temperature-chemical potential plane had been studied. AGS at Brookhaven can study a region of large chemical potential and low temperatures which can potentially probe these new phases of QCD. Furthermore, event-by-event analysis of fluctuations had been proposed as definite experimental signatures of these new phases. These phases are not only interesting from the perspective of the GQ plasma, but also could exist at the cores of neutron stars and could have observational implications in pulsar glitches.
Clearly, a deep understanding of equilibrium and non-equilibrium phenomena described from first principles from quantum field theory is a necessary step for recognizing experimental signatures in the new generation of ultrarelativistic heavy-ion colliders.
Moreover, the theme of transport phenomena on extremely short time and spatial scales is truly interdisciplinary: in cosmology a deeper understanding of inflationary dynamics and reheating has been benefiting from the application of techniques brought to bear on the problem of GQ plasma, and the QCD phase transitions in the early universe can have an imprint in the CMB. In condensed matter physics, recent advances in femtosecond spectroscopy is beginning to probe kinetics and relaxation phenomena on unprecedented small scales and the field can benefit from developments in equilibrium and non-equilibrium techniques from the GQ plasma program.