scholarly journals Toward a theory of binary bound states in the quark-gluon plasma

2004 ◽  
Vol 70 (5) ◽  
Author(s):  
Edward V. Shuryak ◽  
Ismail Zahed
Keyword(s):  
Quark Gluon Plasma ◽  
Bound States ◽  
Gluon Plasma

scholarly journals Holographic Multiquarks in the Quark-Gluon Plasma: A Review

2011 ◽  
Vol 2011 ◽  
pp. 1-40 ◽  
Author(s):  
Piyabut Burikham ◽  
Ekapong Hirunsirisawat
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
Magnetic Properties ◽  
Quark Gluon Plasma ◽  
Bound States ◽  
Degrees Of Freedom ◽  
Gluon Plasma ◽  
Screening Length ◽  
Holographic Approach ◽  
Multiquark States

We review the holographic multiquark states in the deconfined quark-gluon plasma. Nuclear matter can become deconfined by extremely high temperature and/or density. In the deconfined nuclear medium, bound states with colour degrees of freedom are allowed to exist. Using holographic approach, the binding energy and the screening length of the multiquarks can be calculated. Using the deconfined Sakai-Sugimoto model, the phase diagram of the multiquark phase, the vacuum phase, and the chiral-symmetric quark-gluon plasma can be obtained. Then we review the magnetic properties of the multiquarks and their phase diagrams. The multiquark phase is compared with the pure pion gradient, the magnetized vacuum, and the chiral-symmetric quark-gluon plasma phases. For moderate temperature and sufficiently large density at a fixed magnetic field, the mixed phase of multiquark and pion gradient is the most energetically preferred phase.

scholarly journals FROM COMPLEX TO STOCHASTIC POTENTIAL: HEAVY QUARKONIA IN THE QUARK–GLUON PLASMA

2013 ◽  
Vol 28 (08) ◽  
pp. 1330005 ◽  
Author(s):  
ALEXANDER ROTHKOPF
Keyword(s):  
Quark Gluon Plasma ◽  
First Principles ◽  
Bound States ◽  
Recent Progress ◽  
Open Quantum Systems ◽  
Gluon Plasma ◽  
Quantum Systems ◽  
Heavy Quarkonium ◽  
General Complex

The in-medium physics of heavy quarkonium is an ideal proving ground for our ability to connect knowledge about the fundamental laws of physics to phenomenological predictions. One possible route to take is to attempt a description of heavy quark bound states at finite temperature through a Schrödinger equation with an instantaneous potential. Here we review recent progress in devising a comprehensive approach to define such a potential from first principles QCD and extract its, in general complex, values from non-perturbative lattice QCD simulations. Based on the theory of open quantum systems we will show how to interpret the role of the imaginary part in terms of spatial decoherence by introducing the concept of a stochastic potential. Shortcomings as well as possible paths for improvement are discussed.

scholarly journals Heavy quark bound states in a quark–gluon plasma: Dissociation and recombination

2016 ◽  
Vol 946 ◽  
pp. 49-88 ◽  
Author(s):  
Jean-Paul Blaizot ◽  
Davide De Boni ◽  
Pietro Faccioli ◽  
Giovanni Garberoglio
Keyword(s):  
Heavy Quark ◽  
Quark Gluon Plasma ◽  
Bound States ◽  
Gluon Plasma

scholarly journals QUARKONIA IN THE QUARK GLUON PLASMA

2013 ◽  
Vol 28 (11) ◽  
pp. 1340012 ◽  
Author(s):  
ÁGNES MÓCSY ◽  
PÉTER PETRECZKY ◽  
MICHAEL STRICKLAND
Keyword(s):  
Quark Gluon Plasma ◽  
Bound States ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Relativistic Heavy Ion Collisions ◽  
Spectral Functions ◽  
Ion Collisions ◽  
Quark Potential ◽  
Heavy Quark Potential ◽  
Complex Valued

In this paper, we review recent progress toward understanding the nature of quarkonia in the quark gluon plasma. We review the theory necessary to understand the melting of bound states due to color-screening, including lattice results for the heavy quark potential, lattice results on the correlation functions related to the relevant spectral functions, and the emergence of a complex-valued potential in high-temperature quantum chromodynamics. We close with a brief survey of phenomenological models of quarkonium suppression in relativistic heavy ion collisions.

scholarly journals Fate of heavy quark bound states inside quark-gluon plasma

2020 ◽  
Author(s):  
Xiaojun Yao ◽  
Weiyao Ke ◽  
Yingru Xu ◽  
Steffen Bass ◽  
Thomas Mehen ◽  
...  
Keyword(s):  
Heavy Quark ◽  
Quark Gluon Plasma ◽  
Bound States ◽  
Gluon Plasma

scholarly journals Volume Effect of Bound States in Quark-Gluon Plasma

2006 ◽  
Vol 46 (6) ◽  
pp. 1040-1046 ◽  
Author(s):  
Miao Hong ◽  
Gao Chong-Shou ◽  
Zhuang Peng-Fei
Keyword(s):  
Quark Gluon Plasma ◽  
Bound States ◽  
Gluon Plasma ◽  
Volume Effect

scholarly journals SLAVNOV–TAYLOR IDENTITY FOR NONEQUILIBRIUM QUARK–GLUON PLASMA

2001 ◽  
Vol 16 (08) ◽  
pp. 531-540 ◽  
Author(s):  
K. OKANO
Keyword(s):  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Polarization Tensor ◽  
Gluon Polarization ◽  
Time Path

Within the closed-time-path formalism of nonequilibrium QCD, we derive a Slavnov–Taylor (ST) identity for the gluon polarization tensor. The ST identity takes the same form in both Coulomb and covariant gauges. Application to quasi-uniform quark–gluon plasma (QGP) near equilibrium or nonequilibrium quasistationary QGP is made.

scholarly journals Quark Cluster Expansion Model for Interpreting Finite-T Lattice QCD Thermodynamics

Symmetry ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 514
Author(s):  
David Blaschke ◽  
Kirill A. Devyatyarov ◽  
Olaf Kaczmarek
Keyword(s):  
Lattice Qcd ◽  
Cluster Expansion ◽  
Quark Gluon Plasma ◽  
Degrees Of Freedom ◽  
Gluon Plasma ◽  
Polyakov Loop ◽  
Unified Approach ◽  
Narrow Temperature Interval ◽  
Levinson Theorem ◽  
Expansion Model

In this work, we present a unified approach to the thermodynamics of hadron–quark–gluon matter at finite temperatures on the basis of a quark cluster expansion in the form of a generalized Beth–Uhlenbeck approach with a generic ansatz for the hadronic phase shifts that fulfills the Levinson theorem. The change in the composition of the system from a hadron resonance gas to a quark–gluon plasma takes place in the narrow temperature interval of 150–190 MeV, where the Mott dissociation of hadrons is triggered by the dropping quark mass as a result of the restoration of chiral symmetry. The deconfinement of quark and gluon degrees of freedom is regulated by the Polyakov loop variable that signals the breaking of the Z(3) center symmetry of the color SU(3) group of QCD. We suggest a Polyakov-loop quark–gluon plasma model with O(αs) virial correction and solve the stationarity condition of the thermodynamic potential (gap equation) for the Polyakov loop. The resulting pressure is in excellent agreement with lattice QCD simulations up to high temperatures.

Sign in / Sign up

Export Citation Format

Share Document