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

scholarly journals Φ-MEASURE OF PIONS IN HIGH ENERGY HEAVY-ION COLLISIONS

2002 ◽  
Vol 17 (01) ◽  
pp. 109-122 ◽  
Author(s):  
Q. H. ZHANG
Keyword(s):  
Phase Space ◽  
Quantum Correlation ◽  
Heavy Ion Collisions ◽  
Great Influence ◽  
Heavy Ion ◽  
High Energy ◽  
Phase Space Density ◽  
Dynamical Correlation ◽  
Space Density ◽  
Ion Collisions

Event-by-event fluctuations for high energy heavy-ion collisions are investigated. The Φ-measures are calculated for pions. It is found that multiparticle symmetrization correlation has great influence on the value of Φ if the phase space density is high. Previous derivation of Φ-measure has neglected multiparticle quantum correlation. So the explanation of Φ-measure as a measure of dynamical correlation is reasonable only when multiparticles quantum correlation effects are smaller. We argue that the Φ-measure might be applicable at the SPS energy where the pion phase space density is much less than one.

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