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Open Charm Enhancement in Pb+Pb Collisions at SPS
M. I. Gorenstein, A. P. Kostyuk, H. Stoecker +1
The statistical coalescence model for the production of open and hidden charm is considered within the canonical ensemble formulation. The data for the J/ψmultiplicity in Pb+Pb col…
Hydrodynamic Models for Heavy-Ion Collisions, and beyond
A. Dumitru, J. Brachmann, E. S. Fraga +5
A generic property of a first-order phase transition in equilibrium, and in the limit of large entropy per unit of conserved charge, is the smallness of the isentropic speed of sou…
Enhanced Strange Particle Yields - Signal of a Phase of Massless Particles ?
Sven Soff, D. Zschiesche, M. Bleicher +8
The yields of strange particles are calculated with the UrQMD model for p,Pb(158 AGeV)Pb collisions and compared to experimental data. The yields are enhanced in central collisions…
Transition to resonance-rich matter in heavy ion collisions at RHIC energies
L. V. Bravina, E. E. Zabrodin, M. Bleicher +8
The equilibration of hot and dense nuclear matter produced in the central region in central Au+Au collisions at AGeV is studied within the microscopic transport mode…
Strange quark matter within the Nambu-Jona-Lasinio model
I. N. Mishustin, L. M. Satarov, H. Stoecker +1
Equation of state of baryon rich quark matter is studied within the SU(3) Nambu-Jona-Lasinio model with flavour mixing interaction. Possible bound states (strangelets) and chiral p…
Equation of state of resonance-rich matter in the central cell in heavy-ion collisions at =200 AGeV
L. V. Bravina, E. E. Zabrodin, S. A. Bass +7
The equilibration of hot and dense nuclear matter produced in the central cell of central Au+Au collisions at RHIC ( AGeV) energies is studied within a microscopic tr…
Phase Transition in Hot Pion Matter
A. Kostyuk, M. Gorenstein, H. Stoecker +1
The equation of state for the pion gas is analyzed within the third virial approximation. The second virial coefficient is found from the pion-pion- scattering data, while the thir…
Suppression of Quarkonium Production in Heavy Ion Collisions at RHIC and LHC
L. Gerland, L. Frankfurt, M. Strikman +2
A model for the production of quarkonium states in the midrapidity region at RHIC and LHC energy range is presented which explores well understood properties of QCD only. An increa…
Bottom and Charm Production at LHC and RHIC
Jens Ole Schmitt, Gouranga C. Nayak, Horst Stoecker +1
We study and production and the influence of nuclear shadowing at LHC and RHIC energies. We find a significant reduction in the production cross section of bo…
Bremsstrahlung from a Microscopic Model of Relativistic Heavy Ion Collisions
S. M. H. Wong, M. Belkacem, J. I. Kapusta +3
We compute bremsstrahlung arising from the acceleration of individual charged baryons and mesons during the time evolution of high-energy Au+Au collisions at the Relativistic Heavy…
Anisotropic flow in ultra-relativistic heavy ion collisions
M. Bleicher, H. Stöcker
A sign reversal of the directed flow parameter in the central rapidity region in Au+Au collisions at ~AGeV is predicted. This anti-flow is shown to be linked to…
Phase Transition to Hyperon Matter in Neutron Stars
Jurgen Schaffner-Bielich, Matthias Hanauske, Horst Stocker +1
Recent progress in the understanding of the high density phase of neutron stars advances the view that a substantial fraction of the matter consists of hyperons. The possible impac…
Van der Waals Excluded Volume Model for Lorentz Contracted Rigid Spheres
K. A. Bugaev, M. I. Gorenstein, H. Stöcker +1
Conventional cluster and virial expansions are generalized to momentum dependent inter-particle potentials. The model with Lorentz contracted hard core potentials is considered, e.…
Enhanced antiproton production in Pb(160 AGeV)+Pb reactions: evidence for quark gluon matter?
M. Bleicher, M. Belkacem, S. A. Bass +2
The centrality dependence of the antiproton per participant ratio is studied in Pb(160 AGeV)+Pb reactions. Antiproton production in collisions of heavy nuclei at the CERN/SPS seems…
Second Cluster Integral and Excluded Volume Effects for the Pion Gas
A. Kostyuk, M. Gorenstein, H. Stoecker +1
The quantum mechanical formula for Mayer's second cluster integral for the gas of relativistic particles with hard-core interaction is derived. The proper pion volume calculated wi…
Unusual bound states of quark matter within the NJL model
I. N. Mishustin, L. M. Satarov, H. Stoecker +1
Properties of dense quark matter in and out of chemical equilibrium are studied within the SU(3) Nambu-Jona-Lasinio model. In addition to the 4-fermion scalar and vector terms the…
Hadrons in Dense Resonance-Matter: A Chiral SU(3) Approach
D. Zschiesche, P. Papazoglou, S. Schramm +3
A nonlinear chiral SU(3) approach including the spin 3/2 decuplet is developed to describe dense matter. The coupling constants of the baryon resonances to the scalar mesons are de…
Freeze-out in hydrodynamical models in relativistic heavy ion collisions
V. K. Magas, Cs. Anderlik, L. P. Csernai +6
Freeze-out of particles across 3-dimensional space-time hypersurface with space-like normal is discussed in a simple kinetic model. The final momentum distribution of emitted parti…