Color instabilities in the quark–gluon plasma
Journal Article
·
· Physics Reports
- Jan Kochanowski Univ., Kielce (Poland). Inst. of Physics; National Centre for Nuclear Research, Warsaw (Poland)
- Brookhaven National Lab. (BNL), Upton, NY (United States). Physics Dept.
- Goethe Univ., Frankfurt (Germany). Franfurt Inst. for Advanced Studies
When the quark–gluon plasma (QGP) – a system of deconfined quarks and gluons – is in a nonequilibrium state, it is usually unstable with respect to color collective modes. The instabilities, which are expected to strongly influence dynamics of the QGP produced in relativistic heavy-ion collisions, are extensively discussed under the assumption that the plasma is weakly coupled. Here, we begin by presenting the theoretical approaches to study the QGP, which include: field theory methods based on the Keldysh–Schwinger formalism, classical and quantum kinetic theories, and fluid techniques. The dispersion equations, which give the spectrum of plasma collective excitations, are analyzed in detail. We pay particular attention to a momentum distribution of plasma constituents which is obtained by deforming an isotropic momentum distribution. Mechanisms of chromoelectric and chromomagnetic instabilities are explained in terms of elementary physics. The Nyquist analysis, which allows one to determine the number of solutions of a dispersion equation without explicitly solving it, and stability criteria are also discussed. We then review various numerical approaches – purely classical or quantum – to simulate the temporal evolution of an unstable quark–gluon plasma. The dynamical role of instabilities in the processes of plasma equilibration is analyzed.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0012704; SC0013470
- OSTI ID:
- 1392244
- Alternate ID(s):
- OSTI ID: 22715936
OSTI ID: 1397939
- Report Number(s):
- BNL--114267-2017-JA
- Journal Information:
- Physics Reports, Journal Name: Physics Reports Journal Issue: C Vol. 682; ISSN 0370-1573
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
| Fluctuations in ultra-relativistic heavy ion collisions | preprint | January 2017 |
| Dissipative type theories for Bjorken and Gubser flows | preprint | January 2019 |
Screening properties of quark-gluon plasma obtained from distribution and correlation functions of the constituent quasiparticle model
|
journal | February 2020 |
Estimates of the baryon densities attainable in heavy-ion collisions from the beam energy scan program
|
journal | July 2018 |
Effective coupling constant of plasmons
|
journal | September 2019 |
| Estimates of the baryon densities attainable in heavy-ion collisions from the beam energy scan program | text | January 2018 |
| Effective Coupling Constant of Plasmons | text | January 2019 |
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