Catalytic phi meson production in heavy-ion collisions

Abstract

The phi meson production on hyperons, pi Y --> phi Y and anti-kaons bar-K N--> phi Y is argued to be a new efficient source of phi mesons in a nucleus-nucleus collision. These reactions are not suppressed according to Okubo-Zweig-Izuka rule in contrast to the processes with non-strange particles in the entrance channels, pi B and BB with B=N,Delta. A rough estimate of the cross sections within a simple hadronic model shows that the cross sections of pi Y-->phi Y and bar-K N-->phi Y reactions can exceed that of the pi N--> phi N reaction by factors 50 and 60, respectively. In the hadrochemical model for nucleus-nucleus collisions at SIS and lower AGS energies we calculate the evolution of strange particle populations and phi meson production rate due to the new processes. It is found that the catalytic reactions can be operative if the maximal temperature in nucleus-nucleus collisions is larger than 130 MeV and the collision time is larger than 10 fm. A possible influence of the catalytic reactions on the centrality dependence of the phi yield at AGS energies and the phi rapidity distributions at SPS energies is discussed.

19 pages, 8 figures

References in corpus (33)

• Relativistic Hadron-Hadron Collisions in the Ultra-Relativistic Quantum Molecular Dynamics Model (UrQMD)
• Hadron production in central nucleus-nucleus collisions at chemical freeze-out
• Energy Dependence of Pion and Kaon Production in Central Pb+Pb Collisions
• Pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV: Evidence for the onset of deconfinement
• Relativistic chiral SU(3) symmetry, large N_c sum rules and meson-baryon scattering
• Phi meson production in Au+Au and p+p collisions at sqrt (s)=200 GeV
• Relativistic Heavy-Ion Collisions within 3-Fluid Hydrodynamics: Hadronic Scenario
• Energy dependence of phi meson production in central Pb+Pb collisions at sqrt(s_nn) = 6 to 17 GeV
• Kaon versus Antikaon Production at SIS Energies
• Energy dependence of Lambda and Xi production in central Pb+Pb collisions at 20A, 30A, 40A, 80A, and 158A GeV measured at the CERN Super Proton Synchrotron
• Resonance model study of kaon production in baryon baryon reactions for heavy ion collisions
• Production of phi mesons at mid-rapidity in sqrt(s_NN) = 200 GeV Au+Au collisions at RHIC
• Phi Meson Production in Heavy-Ion Collisions at SIS Energies
• The Role of the $\Delta (1920)$ Resonance for Kaon Production in Heavy Ion Collisions
• Particle Production and Flow at SIS Energies
• Heavy Meson Production in Proton-Nucleus Reactions with Empirical Spectral Functions
• Production of phi Mesons in Au+Au Collisions at 11.7 A GeV/c
• Rescattering of Vector Meson Daughters in High Energy Heavy Ion Collisions
• Leptonic and charged kaon decay modes of the $\varphi$ meson measured in heavy-ion collisions at the CERN SPS
• Production of $\omega$ and $\varphi$ Mesons in Near-Threshold $\pi N$ Reactions: Baryon Resonances and Validity of the OZI Rule
• Probing hadronization and freeze-out with multiple strange hadrons and strange resonances
• Aspects of phi-meson production in proton-proton collisions
• The role of the N*(1535) resonance and the pi^- p --> KY amplitudes in the OZI forbidden pi N --> phi N reaction
• Sub-threshold phi-meson yield in central 58Ni+58Ni collisions
• Strangeness production time and the K+/pi+ horn
• Subthreshold phi-meson production in heavy-ion collisions
• Phi meson production cross sections in pion-baryon and baryon-baryon interactions
• A Study of the $\pi B\to YK$ reactions for Kaon Production in Heavy Ion Collisions
• phi puzzle in heavy-ion collisions at 2 AGeV: how many K-from phi decays?
• Phi Mesons from a Hadronic Fireball
• Today's View on Strangeness
• $\varphi$ Meson Production in In-In Collisions and the $\varphi$ Puzzle
• Resonances from a Hadronic Fireball

Cited by in corpus (17)

• Hyperon production in Ar+KCl collisions at 1.76A GeV
• Dielectron production in Ar+KCl collisions at 1.76A GeV
• Strangeness in the cores of neutron stars
• Measurements of Ks, Lambda and Xi from Au+Au collisions at \sqrt{s_NN} = 7.7, 11.5 and 39 GeV in STAR
• D meson nuclear modification factors in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV measured with the ALICE detector at the CERN-LHC
• Strangeness Balance in HADES Experiments and the Xi- Enhancement
• Role of phi decays for K- yields in relativistic heavy-ion collisions
• Search for the QCD Critical Point by Higher Moments of Net-proton Multiplicity Distributions at RHIC
• Open heavy flavor at RHIC and LHC in a partonic transport model
• Probe the QCD phase diagram with phi-meson production in relativistic nuclear collisions at STAR
• Leptonic decay of $\varphi$(1020) meson measured with the STAR experiment
• Catalytic Reactions in Heavy-ion Collisions
• The QCD Critical End Point in the Context of the Polyakov--Nambu--Jona-Lasinio Model
• Production of multi-strange baryons in 7 TeV proton-proton collisions with ALICE
• Strangeness production in hadronic models and recombination models
• Energy dependence of elliptic flow of $\varphi$-meson in STAR at RHIC
• Exclusive open strangeness production in the $pp\to pp{K}^{+}{K}^{-}$ reaction at high energies and a measurement of scalar ${\chi }_{c0}$ meson