Enhancement of hyperon production at central rapidity in 158 A GeV/c Pb-Pb collisions

Abstract

Results are presented on hyperon and antihyperon production in Pb-Pb, pPb and pBe collisions at 158 GeV/c per nucleon. Lambda, Xi and Omega yields have been measured at central rapidity and medium transverse momentum as functions of the centrality of the collision. Comparing the yields in Pb-Pb to those in pBe interactions, strangeness enhancement is observed. The enhancement increases with the centrality and with the strangeness content of the hyperons, reaching a factor of about 20 for the Omega in the central Pb-Pb collisions.

submitted to J. Phys. G.: Nucl. Part. Phys

Cited by in corpus (26)

• K*(892)${}^0$ and $\Phi$(1020) production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Core-Corona Separation in Ultra-Relativistic Heavy Ion Collisions
• Properties of the QCD Matter -- An Experimental Review of Selected Results from RHIC BES Program
• Enhanced strange baryon production in Au+Au collisions compared to p+p at sqrts = 200 GeV
• Theoretical and Experimental Constraints for the Equation of State of Dense and Hot Matter
• Centrality dependence of strangeness production in heavy-ion collisions as a geometrical effect of core-corona superposition
• Centrality and Energy Dependence of Proton, Light Fragment and Hyperon Production
• Deuteron production in AuAu collisions at $\sqrt{s_{NN}}=7-200$ GeV via pion catalysis
• Discovery of Quark-Gluon-Plasma: Strangeness Diaries
• Sub-threshold production of K^{0}_{s} mesons and Λ hyperons in Au(1.23A GeV)+Au
• Exceptional thermodynamics: The equation of state of G(2) gauge theory
• Strangeness production at SPS energies
• Subthreshold Xi- Production in Collisions of p(3.5 GeV)+Nb
• Systematics of chemical freeze-out parameters in heavy-ion collision experiments
• Strangeness Enhancement: Challenges and Successes
• Brief history of the search for critical structures in heavy-ion collisions
• Probing strangeness with event topology classifiers in pp collisions at energies available at the CERN Large Hadron Collider with the rope hadronization mechanism in PYTHIA
• Strangeness production in high-energy collisions and Hawking-Unruh radiation
• Formation of light nuclei at chemical freezeout: Description within a statistical thermal model
• Multistrange Hyperon Production on Nuclear Targets
• Multi-strange particle production in relativistic heavy ion collisions at $\sqrt{s_{NN}}=62.4$ GeV
• Beam energy dependence of net-hyperon yield and its implication on baryon transport mechanism
• Medium effects in antikaon-induced ${\Xi }^{-}$ hyperon production on nuclei near threshold
• Strangeness chemical potential from the baryons relative to the kaons particle ratios
• Effect of color reconnection and rope formation on strange particle production in p+p collisions at $\sqrt{s}=13$ TeV
• Impact of Baryon anti-Baryon annihilation on hyperon ($\Lambda$, $\bar{\Lambda }$) production and apparent strangeness enhancement in $\bar{\Lambda }/\bar{p}$ in heavy ion collisions at SPS energy