Antibaryon production in hot and dense nuclear matter

Abstract

The production of antibaryons is calculated in a microscopic transport approach employing multiple meson fusion reactions according to detailed balance relations with respect to baryon-antibaryon annihilation. It is found that the abundancies of antiprotons as observed from peripheral to central collisions of $Pb+Pb$ at the SPS and $Au+Au$ at the AGS can approximately be described on the basis of multiple interactions of 'formed' hadronic states which drive the system to chemical equilibrium by flavor exchange or quark rearrangement reactions.

39 pages, LaTeX, 14 postscript figures; revised version includes 3 additional figures; to appear in Nucl. Phys. A

References in corpus (1)

• Quenching of resonance production in heavy-ion collisions at 1-2 A GeV

Cited by in corpus (61)

• Transport-theoretical Description of Nuclear Reactions
• Thermalization of gluons in ultrarelativistic heavy ion collisions by including three-body interactions in a parton cascade
• Parton-Hadron-String Dynamics: an off-shell transport approach for relativistic energies
• Particle production and equilibrium properties within a new hadron transport approach for heavy-ion collisions
• Parton transport and hadronization from the dynamical quasiparticle point of view
• Confronting LHC data with the statistical hadronization model
• Parton-Hadron-String Dynamics at Relativistic Collider Energies
• Effective QCD and transport description of dilepton and photon production in heavy-ion collisions and elementary processes
• Transport rates and momentum isotropization of gluon matter in ultrarelativistic heavy-ion collisions
• Parton-Hadron-Quantum-Molecular Dynamics (PHQMD) -- A Novel Microscopic N-Body Transport Approach for Heavy-Ion Collisions, Dynamical Cluster Formation and Hypernuclei Production
• Non-thermal p/pi ratio at LHC as a consequence of hadronic final state interactions
• Open charm and charmonium production at relativistic energies
• $\Lambda$ and $\bar{\Lambda }$ Production in Central Pb-Pb Collisions at 40, 80, and 158 A$\cdot$GeV
• Elliptic flow of gluon matter in ultrarelativistic heavy-ion collisions
• Hadronic observables from SIS to SPS energies - anything strange with strangeness ?
• Examination of the directed flow puzzle in heavy-ion collisions
• Nonequilibrium Quantum-Field Dynamics and Off-Shell Transport for ${\varphi }^4$-theory in 2+1 dimensions
• Chiral symmetry restoration in heavy-ion collisions at intermediate energies
• Chiral symmetry restoration versus deconfinement in heavy-ion collisions at high baryon density
• Antibaryons bound in nuclei
• Electric and magnetic response of hot QCD matter
• Chemical freeze-out temperature in hydrodynamical description of Au+Au collisions at sqrt(s_NN) = 200 GeV
• The QCD phase diagram and Beam Energy Scan physics: a theory overview
• Influence of the hadronic phase on observables in ultrarelativistic heavy ion collisions
• Contributions of hyperon-hyperon scattering to subthreshold cascade production in heavy ion collisions
• "Smashing more than two": Deuteron production in relativistic heavy ion collisions via stochastic multi-particle reactions
• Hadro-Chemistry and Evolution of (Anti-) Baryon Densities at RHIC
• Hydrodynamics at large baryon densities: Understanding proton vs. anti-proton v_2 and other puzzles
• In-medium effects in strangeness production in heavy-ion collisions at (sub-)threshold energies
• Cluster and hyper-cluster production in relativistic heavy-ion collisions within the Parton-Hadron-Quantum-Molecular-Dynamics approach
• System-size dependence of Lambda and Xi production in nucleus--nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron
• Dynamical equilibration of strongly interacting "infinite" parton matter within the parton-hadron-string dynamics transport approach
• Differential Flow of Protons in Au+Au Collisions at AGS Energies
• Kaon and Pion production in relativistic heavy-ion collisions
• Dynamical mechanisms for deuteron production at mid-rapidity in relativistic heavy-ion collisions from SIS to RHIC energies
• Progress and Simulations for Intranuclear Neutron--Antineutron Transformations in ${}_{18}^{40}Ar$
• Baryon-antibaryon annihilation and reproduction in relativistic heavy-ion collisions
• Collective flow of open and hidden charm in Au+Au collisions at $\sqrt{s}$ = 200 GeV
• The role of proton-antiproton regeneration in the late stages of heavy-ion collisions
• Hybrid model calculations of direct photons in high-energy nuclear collisions
• Baryon stopping and strange baryon/antibaryon production at SPS energies
• Centrality and system size dependence of (multi-strange) hyperons at 40$A$ and 158$A$ GeV: A comparison between a binary collision and a Boltzmann + hydrodynamic hybrid model
• Pseudorapidity shape of elliptic flow as signature for fast equilibration in relativistic heavy-ion collisions at energies up to sqrt(s) = 200 GeV
• Forced canonical thermalization in a hadronic transport approach at high density
• Baryon-antibaryon dynamics in relativistic heavy-ion collisions
• QCD plasma thermalization, collective flow and extraction of shear viscosity
• A Poincaré covariant cascade method for high-energy nuclear collisions
• Probing hadronic formation times with antiprotons in p+A reactions at AGS energies
• Evolution of antibaryon abundances in the early Universe and in heavy-ion collisions
• Anti-Proton Evolution in Little Bangs and Big Bang
• News on Strangeness at Ultrarelativistic Energies - Review of Microscopic Models
• Exploring isospin, strangeness charm distillation in heavy ion collisions
• Collective effects in microscopic transport models
• (Anti-)strangeness production in heavy-ion collisions
• A statistical model to calculate inclusive hadronic cross sections
• Nonequilibrium effects in hadronic fireball expansion
• Elliptic flow of identified hadrons in Au+Au collisions at $E_{lab}=35\mathrm{A}\mathrm{GeV}$ using the PHSD model
• Parton-hadron dynamics in heavy-ion collisions
• Strangeness production in hadronic models and recombination models
• Clusters of matter and antimatter
• Transport Model Comparison Studies of Intermediate-Energy Heavy-Ion Collisions