scholarly journals Phase-space densities and effects of resonance decays in a hydrodynamic approach to heavy ion collisions

2004 ◽  
Vol 70 (6) ◽  
Author(s):  
S. V. Akkelin ◽  
Yu. M. Sinyukov
Keyword(s):  
Phase Space ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Ion Collisions ◽  
Hydrodynamic Approach

scholarly journals Phase-space density in heavy-ion collisions revisited

2003 ◽  
Vol 30 (4) ◽  
pp. 517-523 ◽  
Author(s):  
Q. H. Zhang ◽  
J. Barrette ◽  
C. Gale
Keyword(s):  
Phase Space ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Phase Space Density ◽  
Space Density ◽  
Ion Collisions

POPULATION OF MULTI-QUARK STATES IN EXOTIC MULTIPLETS AND THERMALIZATION IN ULTRA-RELATIVISTIC HEAVY ION COLLISIONS

2008 ◽  
Vol 17 (06) ◽  
pp. 965-1014 ◽  
Author(s):  
STEFAN SCHERER ◽  
MARCUS BLEICHER ◽  
STEPHANE HAUSSLER ◽  
HORST STÖCKER
Keyword(s):  
Phase Space ◽  
Thermal Model ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Recent Discussion ◽  
Ion Collisions ◽  
Model Predictions ◽  
Exotic Hadrons ◽  
Equal Population

The recent discussion about experimental evidence for pentaquark states has revitalized the interest in exotic hadrons. If such states really exist, it is natural to assume that they will be formed at the late hadronization stage of ultra-relativistic heavy ion collisions, given the success of quark recombination models in the description of hadronization. Here, we apply the qMD model to study the formation of color neutral exotic multi-quark clusters at hadronization. We search for color neutral clusters made up of up to six color charges, respectively. We thus obtain estimates for the numbers and phase space distributions of exotic hadronic states produced by clustering in heavy ion collisions, including the members of the pentaquark multiplets. We obtain particle abundances that are smaller than thermal model predictions. Moreover, the results obtained in recombination from ultra-relativistic heavy ion collisions can be compared to the estimates based on equal population of the corresponding multiplets, and to results from fully thermalized systems. We find that the distribution of exotic hadrons from recombination over large multiplets provides a sensitive signal for thermalization and decorrelation of the initial, non-equilibrium state of the collision.

Semi-classical approaches to the phase space evolutions in intermediate energy heavy ion collisions

1986 ◽  
Vol 447 ◽  
pp. 555-567 ◽  
Author(s):  
B. Remaud ◽  
F. Sebille ◽  
C. Gregoire ◽  
L. Vinet ◽  
Y. Raffray
Keyword(s):  
Phase Space ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Intermediate Energy ◽  
Ion Collisions

Phase space model of hard-photon production in heavy-ion collisions

1990 ◽  
Vol 103 (2) ◽  
pp. 309-316 ◽  
Author(s):  
A. Bonasera ◽  
G. F. Burgio ◽  
F. Gulminelli ◽  
H. H. Wolter
Keyword(s):  
Phase Space ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Photon Production ◽  
Hard Photon ◽  
Space Model ◽  
Ion Collisions ◽  
Phase Space Model
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