Kaon production at subthreshold energies - what do we learn about the nuclear medium ?

Abstract

The Isospin Quantum Molecular Dynamics model is used to compare spectra and elliptic flow of kaons produced at subthreshold energies with data taken at the SIS accelerator at GSI. We find that temperatures of the spectra are dominated by the rescattering of the kaons. The study of elliptic flow observables indicates the influence of rescattering as well as of the optical potential of the kaons with increasing dominance of the optical potential at lower incident energies.

arXiv commentcontribution to strange Quark Matter 2007, accepted for publication in J. Phys. G 6 pages, 4 figures

References in corpus (24)

• Modelling the many-body dynamics of heavy ion collisions: Present status and future perspective
• Evidence for a Soft Nuclear Equation-of-State from Kaon Production in Heavy Ion Collisions
• In-medium Production of Kaons at the Mean-Field Level
• Medium Effects in Kaon and Antikaon Production in Nuclear Collisions at Subthreshold Beam Energies
• Medium effects in high energy heavy-ion collisions
• Kaon versus Antikaon Production at SIS Energies
• Medium Modified Cross Sections, Temperature and Finite Momentum Effects for Antikaon Production in Heavy-Ion Collisions
• On the transverse momentum distribution of strange hadrons produced in relativistic heavy ion collisions
• Azimuthal correlations of pions in relativistic heavy ion collisions at 1 GeV/nucl.
• Analysis of Kaon Production at SIS Energies
• Production of K+ and of K- Mesons in Heavy-Ion Collisions from 0.6 to 2.0 AGeV Incident Energy
• Sideward flow of K+ mesons in Ru+Ru and Ni+Ni reactions near threshold
• First Measurement of Antikaon Phase-Space Distributions in Nucleus-Nucleus Collisions at Subthreshold Beam Energies
• What determines the $K^{-}$ multiplicity at energies around 1-2 AGeV?
• First evidence for different freeze-out conditions for kaons and antikaons observed in heavy-ion collisions
• Statistical Model Description of $K^{+}$ and $K^{-}$ Production between 1 - 10 AGeV
• Consequences of covariant kaon dynamics in heavy ion collisions
• Observation of different azimuthal emission patterns for K+ and of K- mesons in Heavy Ion Collisions at 1-2 AGeV
• Medium effects on the flow of strange particles in heavy ion collisions
• Review of SIS Experimental Results on Strangeness
• The nuclear equation of state probed by $K^{+}$ production in heavy ion collisions
• K+ and K- production in heavy-ion collisions at SIS-energies
• Results from FOPI on strangeness production and propagation at SIS energies
• Analysis of kaon spectra at SIS energies - what remains from the KN potential

Cited by in corpus (8)

• Effect of the symmetry energy on nuclear stopping and its relation to the production of light charged fragments
• Probing the density dependence of symmetry energy via multifragmentation at sub-saturation densities
• Systematic study of multi-fragmentation in asymmetric colliding nuclei
• Continuous Decoupling of Dynamically Expanding Systems
• Role of phi decays for K- yields in relativistic heavy-ion collisions
• Mass independence and asymmetry of the reaction: Multi-fragmentation as an example
• Effect of the density dependent symmetry energy on fragmentation
• On the elliptical flow in asymmetric collisions and nuclear equation of state