Strangeness chemical potential from the baryons relative to the kaons particle ratios

Abstract

From a systematic analysis of the energy-dependence of four antibaryon-to-baryon ratios relative to the antikaon-to-kaon ratio, we propose an alternative approach determining the strange-quark chemical potential (${\mu }_{\mathrm{s}}$). It is found that ${\mu }_{\mathrm{s}}$ generically genuinely equals one-fifth the baryon chemical potential (${\mu }_{\mathrm{b}}$). An additional quantity depending on ${\mu }_{\mathrm{b}}$ and the freezeout temperature ($T$) should be added in order to assure averaged strangeness conversation. This quantity gives a genuine estimation for the possible strangeness enhancement with the increase in the collision energy. At the chemical freezeout conditioned to constant entropy density normalized to temperature cubed, various particle ratios calculated at $T$ and ${\mu }_{\mathrm{b}}$ and the resultant ${\mu }_{\mathrm{s}}$ excellently agree with the statistical-thermal calculations.

arXiv comment24 pages, 5 figures accepted for publication in IJMPE

References in corpus (47)

• New Forms of QCD Matter Discovered at RHIC
• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Centrality dependence of $\pi$, K, p production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Energy Dependence of Pion and Kaon Production in Central Pb+Pb Collisions
• Unified Description of Freeze-Out Parameters in Relativistic Heavy Ion Collisions
• Hadron Resonance Mass Spectrum and Lattice QCD Thermodynamics
• THERMUS -- A Thermal Model Package for ROOT
• Thermodynamics at Non-Zero Baryon Number Density: A Comparison of Lattice and Hadron Resonance Gas Model Calculations
• Pion, kaon, and proton production in central Pb-Pb Collisions at $\sqrt{s_{NN}}=2.76$ TeV
• Additional Strange Hadrons from QCD Thermodynamics and Strangeness Freeze-out in Heavy Ion Collisions
• Is there a flavor hierarchy in the deconfinement transition of QCD?
• Multi-Strange Baryon Production in Au-Au collisions at sqrt(s_NN) = 130 GeV
• Mid-rapidity $\Lambda$ and $\bar{\Lambda }$ Production in Au+Au Collisions at $\sqrt{s_{{}_{NN}}}=130$ GeV
• 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
• The QCD phase diagram: A comparison of lattice and hadron resonance gas model calculations
• Enhanced strange baryon production in Au+Au collisions compared to p+p at sqrts = 200 GeV
• Measurement of the lambda and lambda^bar particles in Au+Au Collisions at sqrt(s_NN)=130 GeV
• Antimatter production in proton-proton and heavy-ion collisions at ultrarelativistic energies
• Strange and Multi-strange Particle Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 62.4 GeV
• Enhancement of hyperon production at central rapidity in 158 A GeV/c Pb-Pb collisions
• Particle Ratios, Equilibration, and the QCD Phase Boundary
• Rapidity Dependence of Charged Antiparticle-to-Particle Ratios in Au+Au Collisions at $\sqrt{s_{NN}}=200$ GeV
• Centrality Dependence of Kaon Yields in Si+A and Au+Au Collisions at Relativistic Energies
• Energy dependence of hyperon production in nucleus-nucleus collisions at SPS
• Recent results on spectra and yields from NA49
• Equilibrium Statistical-Thermal Models in High-Energy Physics
• The influence of strange quarks on QCD phase diagram and chemical freeze-out: Results from the hadron resonance gas model
• Rapidity dependence of antiproton to proton ratios in Au+Au collisions at sqrt{s_{NN}}=130 GeV
• Heavy ion collisions and lattice QCD at finite baryon density
• Near-threshold production of the multi-strange ${\Xi }^{-}$ hyperon
• Antilambda production in Au+Au collisions at 11.7 A GeV/c
• Conditions for Confinement and Freeze-Out
• A universal description for the freezeout parameters in heavy-ion collisions
• Identified Hadron Production from the RHIC Beam Energy Scan
• System-size dependence of Lambda and Xi production in nucleus--nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron
• Conditions driving chemical freeze-out
• Constant Trace Anomaly as a Universal Condition for the Chemical Freeze-Out
• Measurements of Ks, Lambda and Xi from Au+Au collisions at \sqrt{s_NN} = 7.7, 11.5 and 39 GeV in STAR
• Canonical Strangeness Enhancement
• Kaon and Pion Production in Central Au+Au Collisions at \sqrt{s_{NN}}=62.4 GeV
• Baryon-antibaryon production asymmetry in relativistic heavy ion collisions
• Chemical Freeze-Out and Higher Order Multiplicity Moments
• Possible interrelations among chemical freezeout conditions
• Baryon-anti-baryon Flavor Correlation in Quark Combination Models in Heavy Ion Collisions
• Jet Quenching in Heavy-Ion Collisions - The Transition Era from RHIC to LHC
• Phenomenology of Strangeness enhancement in heavy ion collisions
• Strangeness production in high-energy collisions and Hawking-Unruh radiation

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