1997/11/18 by S. A. Bass, Steffen A. Bass, M. Belkacem +14 · 37 citations
Physics and Astronomy · #Heavy ion #High-Energy Particle Collisions Research #Ion #Non-equilibrium thermodynamics #Nuclear physics #Particle (ecology) #Particle physics #Particle physics theoretical and experimental studies #Physics #Plasma #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quark #Quark–gluon plasma #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevlett.81.4092
published in Physical Review Letters 81(19), 4092-4095 (American Physical Society) · 12 pages, 4 figures
arxiv created 1997/11/18 · openalex publication_date 1998/11/09 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Ratios of hadronic abundances are analyzed for pp and nucleus-nucleus collisions at √(s)\ensuremath≈20GeV using the microscopic ultrarelativistic quantum molecular dynamics transport model. Secondary interactions significantly change the primordial hadronic composition of the system. A strong dependence on rapidity is predicted. Without assuming thermal and chemical equilibrium, predicted hadron yields and ratios agree with many of the data ( \ensuremathπ/p, d/p, p/p, \ensuremathΛ/\ensuremathΛ, \ensuremathΞ/\ensuremathΛ, etc.).