Refractive index of quark-gluon plasma: Kinetic theory with a Bhatnagar-Gross-Krook collisional kernel

2016 ◽  
Vol 94 (7) ◽  
Author(s):  
Bing-feng Jiang ◽  
De-fu Hou ◽  
Jia-rong Li
Keyword(s):  
Refractive Index ◽  
Kinetic Theory ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Plasma Kinetic

scholarly journals Refractive index in the viscous quark-gluon plasma

2013 ◽  
Vol 88 (4) ◽  
Author(s):  
Bing-feng Jiang ◽  
De-fu Hou ◽  
Jia-rong Li ◽  
Yan-jun Gao
Keyword(s):  
Refractive Index ◽  
Quark Gluon Plasma ◽  
Gluon Plasma

Refractive index of light and the quark-gluon plasma

Open Physics ◽  
2012 ◽  
Vol 10 (6) ◽  
Author(s):  
Juan Liu ◽  
Min-Jie Luo ◽  
Hao-Jie Xu
Keyword(s):  
Refractive Index ◽  
Perturbation Theory ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Strongly Coupled ◽  
Hard Thermal Loop ◽  
Optical Phenomenon ◽  
Weakly Coupled ◽  
Holographic Approach

AbstractThe refractive index (RI) of light propagating in a medium of quark-gluon plasma (QGP) is studied. The weakly coupled QGP is studied in the framework of hard-thermal-loop (HTL) perturbation theory, and the strongly coupled one is treated based on the holographic approach. In more realistic setups, the feasibility of observing the optical phenomenon related to the RI of QGP is also discussed.

scholarly journals Flow in AA and pA as an interplay of fluid-like and non-fluid like excitations

2019 ◽  
Vol 79 (11) ◽  
Author(s):  
Aleksi Kurkela ◽  
Urs Achim Wiedemann ◽  
Bin Wu
Keyword(s):  
Fluid Dynamics ◽  
Kinetic Theory ◽  
Quark Gluon Plasma ◽  
Relative Weight ◽  
System Size ◽  
Gluon Plasma ◽  
Theory Model ◽  
Transverse Plane ◽  
Central Nucleus ◽  
Hadronic Collisions

AbstractTo study the microscopic structure of quark–gluon plasma, data from hadronic collisions must be confronted with models that go beyond fluid dynamics. Here, we study a simple kinetic theory model that encompasses fluid dynamics but contains also particle-like excitations in a boost invariant setting with no symmetries in the transverse plane and with large initial momentum asymmetries. We determine the relative weight of fluid dynamical and particle like excitations as a function of system size and energy density by comparing kinetic transport to results from the 0th, 1st and 2nd order gradient expansion of viscous fluid dynamics. We then confront this kinetic theory with data on azimuthal flow coefficients over a wide centrality range in PbPb collisions at the LHC, in AuAu collisions at RHIC, and in pPb collisions at the LHC. Evidence is presented that non-hydrodynamic excitations make the dominant contribution to collective flow signals in pPb collisions at the LHC and contribute significantly to flow in peripheral nucleus–nucleus collisions, while fluid-like excitations dominate collectivity in central nucleus–nucleus collisions at collider energies.

Shear viscosity of the quark-gluon plasma in a kinetic theory approach

2014 ◽  
Author(s):  
A. Puglisi ◽  
S. Plumari ◽  
F. Scardina ◽  
V. Greco
Keyword(s):  
Kinetic Theory ◽  
Shear Viscosity ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Theory Approach
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