Pion and kaon production in centralPb+Pbcollisions at20Aand30AGeV: Evidence for the onset of deconfinement

2007/10/15 by NA49 Collaboration, C. Alt, T. Anticic +97 · 4 citations
Physics and Astronomy · #Hadron #High-Energy Particle Collisions Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Rapidity #Spectral line #Transverse mass #nucl-ex

paper · pdf · doi:10.1103/physrevc.77.024903

published as Phys.Rev.C77:024903,2008 · 12 pages, 8 figures

arxiv created 2007/10/15 · openalex publication_date 2008/02/19 · arxiv updated 2012/08/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

Results on charged pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV are presented and compared to data at lower and higher energies. Around 30A GeV a rapid change of the energy dependence for the yields of pions and kaons as well as for the shape of the transverse mass spectra is observed. The change is compatible with the prediction that the threshold for production of a state of deconfined matter at the early stage of the collisions is located at low CERN Super Proton Synchroton energies.

Citations

• Evidence for the Onset of Deconfinement from Longitudinal Momentum Distributions? Observation of the Softest Point of the Equation of State
• Strange meson enhancement in PbPb collisions
• Transition from baryonic to mesonic freeze-out
• Systematic study of the kaon to pion multiplicity ratios in heavy-ion collisions
• Transverse activity of kaons and deconfinement phase transition in nucleus–nucleus collisions
• Thermal and hadrochemical equilibration in nucleus-nucleus collisions at the SPS
• Transition temperature in QCD
• Microscopic models for ultrarelativistic heavy ion collisions
• Multiplicity fluctuations in relativistic nuclear collisions: Statistical model versus experimental data
• Charged pion production in2Ato8A<mml:mspace width="0.3em"/>GeVcentralAu+AuCollisions

Cited by

• Multistrange particle production and the statistical hadronization model
• Particle production and chemical freezeout from the hybrid UrQMD approach at NICA energies
• Viscosity, nonconformal equation of state, and sound velocity in Landau hydrodynamics
• Alternative scenarios of relativistic heavy-ion collisions. III. Transverse momentum spectra