Transverse-Mass Effective Temperature in Heavy-Ion Collisions from AGS to SPS

Abstract

Transverse-mass spectra in Au+Au and Pb+Pb collisions in incident energy range from 2A to 160A GeV are analyzed within the model of 3-fluid dynamics. It is shown that dynamical description of freeze-out, accepted in this model, naturally explains the incident energy behavior of inverse-slope parameters of these spectra observed in experiment. Simultaneous reproduction of the inverse-slopes of all considered particles (protons, pions and kaons) suggests that these particles belong to the same hydrodynamic flow at the instant of their freeze-out.

arXiv comment4 pages, 3 figures

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• Alternative Scenarios of Relativistic Heavy-Ion Collisions: II. Particle Production
• Baryon Stopping as a Probe of Deconfinement Onset in Relativistic Heavy-Ion Collisions
• Alternative Scenarios of Relativistic Heavy-Ion Collisions: III. Transverse Momentum Spectra
• $<m_T>$ excitation function: Freeze-out and equation of state dependence
• Baryon Stopping in Heavy-Ion Collisions at E_{lab}= 2--160 GeV/nucleon
• Transverse-Mass Spectra in Heavy-Ion Collisions at energies E_{lab} = 2--160 GeV/nucleon
• Baryon stopping as a signal of the mixed phase onset
• Phase Evolution and Freeze-out within Alternative Scenarios of Relativistic Heavy-Ion Collisions
• Comparing effective temperatures in standard, Tsallis, and q-dual statistics from transverse momentum spectra of identified light charged hadrons produced in gold--gold collisions at RHIC energies
• Effect of color reconnection on multiplicity dependent charged particle production in Pythia-generated $pp$ collisions at the LHC energies
• Comparing effective temperatures in standard and Tsallis distributions from transverse momentum spectra in small collision systems