Omega and Antiomega production in central Pb+Pb collisions at 40 and 158 AGeV

Abstract

Results are presented on Omega production in central Pb+Pb collisions at 40 and 158 AGeV beam energy. Given are transverse-mass spectra, rapidity distributions, and total yields for the sum Omega+Antiomega at 40 AGeV and for Omega and Antiomega separately at 158 AGeV. The yields are strongly under-predicted by the string-hadronic UrQMD model and are in better agreement with predictions from a hadron gas models.

arXiv comment5 papes, 4 figures, 1 table, updated figure 4 and table 1. Final version, including some editorial changes, as published in PRL

References in corpus (16)

• Relativistic Hadron-Hadron Collisions in the Ultra-Relativistic Quantum Molecular Dynamics Model (UrQMD)
• Energy Dependence of Pion and Kaon Production in Central Pb+Pb Collisions
• Features of particle multiplicities and strangeness production in central heavy ion collisions between 1.7A and 158A GeV/c
• Chemical equilibrium study in nucleus-nucleus collisions at relativistic energies
• Chemical Freeze-out and the QCD Phase Transition Temperature
• Evidence of early multi-strange hadron freeze-out in high energy nuclear collisions
• Maximum Relative Strangeness Content in Heavy Ion Collisions Around 30 A.GeV
• Report from NA49
• $\Lambda$ and $\bar{\Lambda }$ Production in Central Pb-Pb Collisions at 40, 80, and 158 A$\cdot$GeV
• Energy dependence of hyperon production in nucleus-nucleus collisions at SPS
• Hydrodynamical assessment of 200 AGeV collisions
• Recent results on spectra and yields from NA49
• Cascade and anti-cascade production in central Pb+Pb collisions at 158 GeV/c per nucleon
• Near-threshold production of the multi-strange ${\Xi }^{-}$ hyperon
• Omega, J/psi and psi' Production in Nuclear Collisions and Quark Gluon Plsama Hadronization
• Thermal analysis of hadron multiplicities from relativistic quantum molecular dynamics

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• Examine the species and beam-energy dependence of particle spectra using Tsallis Statistics
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• Chemical Freeze-out of Strange Particles and Possible Root of Strangeness Suppression
• Probing Parton Dynamics of QCD Matter with $\Omega$ and $\varphi$ Production
• Production of Light Nuclei in Heavy Ion Collisions Within Multiple Freezeout Scenario
• QCD Equation of State at Finite Chemical Potentials for Relativistic Nuclear Collisions
• Hydrodynamics at large baryon densities: Understanding proton vs. anti-proton v_2 and other puzzles
• Simple Solution to the Strangeness Horn Description Puzzle
• Strange hadron production in heavy ion collisions from SPS to RHIC
• Examination of the sensitivity of the thermal fits to heavy-ion hadron yield data to the modeling of the eigenvolume interactions
• Chemical freeze-out conditions and fluctuations of conserved charges in heavy-ion collisions within quantum van der Waals model
• Flavor-dependent eigenvolume interactions in a hadron resonance gas
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• Core-corona separation in the UrQMD hybrid model
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• Baryon-antibaryon annihilation and reproduction in relativistic heavy-ion collisions
• Hadron Yield Correlation in Combination Models in High Energy AA Collisions
• Inhomogeneous freeze-out in relativistic heavy-ion collisions
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• Correlating Strangeness Enhancement and J/psi Suppression in Heavy Ion Collisions at sqrt(s)_NN = 17.2 GeV
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• Upper Limit of D0 Production in Central Pb-Pb Collisions at 158A GeV
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• Transverse dynamics of Pb-Pb collisions at 40 A GeV/c viewed by strange hadrons
• Analysis of hadron yield data within hadron resonance gas model with multi-component eigenvolume corrections
• Collision Energy Dependence of Particle Ratios and Freeze-out Parameters in Ultra Relativistic Nucleus Nucleus Collisions
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• Multistrange Hyperon Production on Nuclear Targets
• Extracting strange quark freeze-out information in Pb+Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV from $\varphi$ and $\Omega$ production
• Recent results on strangeness production from NA49
• Hyperon Production in Bi+Bi Collisions at NICA and Angular Dependence of Hyperon Spin Polarization
• Particle Ratios within EPOS, UrQMD and Thermal Models at AGS, SPS and RHIC Energies
• Phase-Space Description of Momentum Spectra in Relativistic Heavy-Ion Collisions
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• Centrality dependence of multistrange baryon production in high-energy heavy-ion collisions