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Strangeness Production in low energy Heavy Ion Collisions via Hagedorn Resonances
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A novel, unorthodox picture of the dynamics of heavy ion collisions is developed using the concept of Hagedorn states. A prescription of the bootstrap of Hagedorn states respecting the conserved quantum numbers baryon number B, strangeness S, isospin I is implememted into the GiBUU transport model. Using a strangeness saturation suppression factor suitable for nucleon-nucleon-collisions, recent experimental data for the strangeness production by the HADES collaboration in Au+Au and Ar+KCl is reasonable well described. The experimental observed exponential slopes of the energy distributions are nicely reproduced. Thus, a dynamical model using Hagedorn resonance states, supplemented by a strangeness saturation suppression factor, is able to explain essential features (multiplicities, exponential slope) of experimental data for strangeness production in nucleus-nucleus collisions close to threshold.
Forward citations
Cited by 2 Pith papers
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Temperatures and chemical potentials at kinetic freeze-out in relativistic heavy ion collisions from coarse grained transport simulations
Kinetic freeze-out in central Au+Au collisions is a continuous process spanning broad ranges of temperature and baryon chemical potential, with averages nearly flat in transverse momentum and rapidity.
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Backward nucleon production by heavy baryonic resonances in proton-nucleus collisions
Backward nucleons in p+A collisions can be produced by heavy baryonic resonances that undergo successive rescatterings with nuclear nucleons, a mechanism the authors support with analytic kinematics and UrQMD simulations.
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