Pion entropy and phase-space densities in A+A collisions

Abstract

We propose a method to estimate the entropy of thermal pions in A+A collisions irrespective of unknown form of freeze-out (isothermal) hypersurface and transverse flows developed. We analyse the average phase-space densities and entropies of the thermal pions vs their multiplicities and collision energies. The behaviour of these values apparently indicates the deconfinement and chiral phase transitions in relativistic nuclear-nucleus collisions

8 pages, 3 figures, talk presented by Yu.M. Sinyukov during the 3rd Budapest Winter School on Heavy Ion Physics, Dec. 8-11, 2003, Budapest, Hungary

References in corpus (7)

• Why does the Quark-Gluon Plasma at RHIC behave as a nearly ideal fluid ?
• Rethinking the Properties of the Quark-Gluon Plasma at $T\sim T_c$
• Single Identified Hadron Spectra from sqrt(s_NN)=130 GeV Au+Au Collisions
• Entropy Production at RHIC
• The \bar q q Bound States and Instanton Molecule at T >~ T_c
• Phase-space densities and effects of resonance decays in hydrodynamic approach to heavy ion collisions
• Ultrarelativistic nucleus-nucleus collisions and the quark-gluon plasma

Cited by in corpus (2)

• Entropy and multifractality in ring-like and jet-like events produced in 11.6A GeV/c ${}^{197}$Au-AgBr collisions
• Entropy and Multifractality in Relativistic Ion-Ion Collisions