Pion spectra in a hadronic transport model for relativistic heavy ion collisions

1991 ◽  
Vol 44 (1) ◽  
pp. 450-462 ◽  
Author(s):  
Bao-An Li ◽  
Wolfgang Bauer
Keyword(s):  
Heavy Ion Collisions ◽  
Transport Model ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Ion Collisions

scholarly journals Flow and vorticity with varying chemical potential in relativistic heavy ion collisions

2020 ◽  
Vol 29 (01) ◽  
pp. 2050001
Author(s):  
Abhisek Saha ◽  
Soma Sanyal
Keyword(s):  
Shear Viscosity ◽  
Heavy Ion Collisions ◽  
Collision Energy ◽  
Chemical Potential ◽  
Transport Model ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Viscous Effects ◽  
Ion Collisions ◽  
Lower Collision

We study the vorticity patterns in relativistic heavy ion collisions with respect to the collision energy. The collision energy is related to the chemical potential used in the thermal — statistical models that assume approximate chemical equilibrium after the relativistic collision. We use the multiphase transport model (AMPT) to study the vorticity in the initial parton phase as well as the final hadronic phase of the relativistic heavy ion collision. We find that as the chemical potential increases, the vortices are larger in size. Using different definitions of vorticity, we find that vorticity plays a greater role at lower collision energies than at higher collision energies. We also look at other effects of the flow patterns related to the shear viscosity at different collision energies. We find that the shear viscosity obtained is almost a constant with a small decrease at higher collision energies. We also look at the elliptic flow as it is related to viscous effects in the final stages after the collision. Our results indicate that the viscosity plays a greater role at higher chemical potential and lower collision energies.

STUDIES OF SUPERDENSE HADRONIC MATTER IN A RELATIVISTIC TRANSPORT MODEL

2001 ◽  
Vol 10 (04n05) ◽  
pp. 267-352 ◽  
Author(s):  
BAO-AN LI ◽  
A. T. SUSTICH ◽  
BIN ZHANG ◽  
C. M. KO
Keyword(s):  
Heavy Ion Collisions ◽  
Transport Model ◽  
National Laboratory ◽  
Heavy Ion ◽  
Brookhaven National Laboratory ◽  
Hadronic Matter ◽  
Relativistic Heavy Ion Collisions ◽  
Kaon Production ◽  
Superdense Matter ◽  
Ion Collisions

Transport models have been very useful in studying the properties of the hot, dense matter that is created in relativistic heavy-ion collisions. We review here a Relativistic Transport (ART) Model and its applications in heavy ion collisions at beam energies below about 10 AGeV available from the Alternating Gradient Synchrotron at Brookhaven National Laboratory. The model allows one to study not only the reaction dynamics leading to the formation of superdense hadronic matter, but also to explore the effects due to the nuclear equation of state and the deformation/orientation of the colliding nuclei on the size and lifetime of the superdense matter. We also discuss the dependence of the central baryon and energy densities, the degree of thermalization, and the collective radial flow velocity of the superdense matter on the beam energy. We further review how the properties of the superdense hadronic matter can be determined from studying the collective flow of nucleons, pions and kaons in these collisions. We finally discuss the mechanisms for kaon production in relativistic heavy-ion collisions and review the progress in extracting the kaon in-medium properties from these collisions.

scholarly journals Multiphase transport model for relativistic heavy ion collisions

2005 ◽  
Vol 72 (6) ◽  
Author(s):  
Zi-Wei Lin ◽  
Che Ming Ko ◽  
Bao-An Li ◽  
Bin Zhang ◽  
Subrata Pal
Keyword(s):  
Heavy Ion Collisions ◽  
Transport Model ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Multiphase Transport ◽  
Ion Collisions
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