Emission of High-Energy Protons and Photons in Heavy-Ion Collisions Treated on the Basis of a Hydrodynamic Approach with a Nonequilibrium Equation of State

2020 ◽  
Vol 83 (4) ◽  
pp. 558-566
Author(s):  
A. T. D’yachenko ◽  
I. A. Mitropolsky
Keyword(s):  
Equation Of State ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
High Energy ◽  
Ion Collisions ◽  
Hydrodynamic Approach

PARTONIC EQUATION OF STATE IN HIGH-ENERGY NUCLEAR COLLISIONS

2007 ◽  
Vol 16 (03) ◽  
pp. 715-727 ◽  
Author(s):  
NU XU
Keyword(s):  
Equation Of State ◽  
Heavy Ion Collisions ◽  
Degrees Of Freedom ◽  
Collective Motion ◽  
Radial Flow ◽  
Heavy Ion ◽  
High Energy ◽  
Experimental Results ◽  
Nuclear Collisions ◽  
Ion Collisions

After a brief introduction to the physics of high-energy nuclear collisions, we will present recent experimental results that are closely connected to the properties of the matter produced in Au + Au collisions at RHIC. Collective motion with parton degrees of freedom is called partonic collectivity. We will focus on collective observables such as transverse radial flow and elliptic flow. With experimental observations, we will demonstrate that collectivity is developed prior to the hadronic stage in heavy ion collisions at RHIC.

scholarly journals Emission of high energy particles in heavy ion collisions and a non-equilibrium equation of state

2019 ◽  
Vol 204 ◽  
pp. 03018
Author(s):  
Alexander T. D’yachenko ◽  
Ivan A. Mitropolsky
Keyword(s):  
Equation Of State ◽  
Cross Sections ◽  
Equilibrium Equation ◽  
Heavy Ion ◽  
High Energy ◽  
Intermediate Energies ◽  
Ion Collisions ◽  
Hydrodynamic Approach ◽  
High Energy Particles ◽  
Non Equilibrium

A hydrodynamic approach with a non-equilibrium equation of state is used to describe the collisions of heavy ions at medium and intermediate energies. In the development of this approach, with the inclusion of nuclear viscosity effects and the introduction of an amendment to the microcanonical distribution, the double differential cross sections of proton emission in collisions of different nuclei are calculated, which are in agreement with the available experimental data on the emission of high-energy particles, including the cumulative spectral region.

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