Strange and Multi-strange Particle Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 62.4 GeV

Abstract

We present results on strange and multi-strange particle production in Au+Au collisions at $\sqrt{s_{NN}}=62.4$ GeV as measured with the STAR detector at RHIC. Mid-rapidity transverse momentum spectra and integrated yields of $K_S^0$, $\Lambda$, $\Xi$, $\Omega$ and their anti-particles are presented for different centrality classes. The particle yields and ratios follow a smooth energy dependence. Chemical freeze-out parameters, temperature, baryon chemical potential and strangeness saturation factor obtained from the particle yields are presented. Intermediate transverse momentum ($p_T$) phenomena are discussed based on the ratio of the measured baryon-to-meson spectra and nuclear modification factor. The centrality dependence of various measurements presented show a similar behavior as seen in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV.

arXiv commentSTAR collaboration paper, 17 pages, 17 figures

References in corpus (36)

• Glauber Modeling in High Energy Nuclear Collisions
• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Transverse momentum and collision energy dependence of high $p_T$ hadron suppression in Au+Au collisions at ultrarelativistic energies
• Disappearance of back-to-back high $p_T$ hadron correlations in central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Parton coalescence and antiproton/pion anomaly at RHIC
• Comparison of Chemical Freeze-Out Criteria in Heavy-Ion Collisions
• Hadron production in heavy ion collisions: Fragmentation and recombination from a dense parton phase
• Hadron production in Au-Au collisions at RHIC
• Chemical Equilibration in Pb+Pb Collisions at the SPS
• Measurements of Strange Particle Production in $p+p$ Collisions at $\sqrt{s}$= 200 GeV
• Scaling behavior at high p_T and the p/pi ratio
• Identified baryon and meson distributions at large transverse momenta from Au+Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV
• THERMUS -- A Thermal Model Package for ROOT
• Chemical equilibrium study in nucleus-nucleus collisions at relativistic energies
• The critical end point of QCD
• Partonic flow and $\varphi$-meson production in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Energy dependence of charged pion, proton and anti-proton transverse momentum spectra for Au+Au collisions at \sqrt{s_NN} = 62.4 and 200 GeV
• Mid-rapidity $\Lambda$ and $\bar{\Lambda }$ Production in Au+Au Collisions at $\sqrt{s_{{}_{NN}}}=130$ GeV
• Multi-Strange Baryon Production in Au-Au collisions at sqrt(s_NN) = 130 GeV
• Measurements of $\varphi$ meson production in relativistic heavy-ion collisions at RHIC
• Enhanced strange baryon production in Au+Au collisions compared to p+p at sqrts = 200 GeV
• Where is the chiral critical point in 3-flavor QCD?
• Extensive Particle Identification with TPC and TOF at the STAR Experiment
• Hadron freeze-out conditions in high energy nuclear collisions
• $\Lambda$ and $\bar{\Lambda }$ Production in Central Pb-Pb Collisions at 40, 80, and 158 A$\cdot$GeV
• Energy and system size dependence of ϕmeson production in Cu+Cu and Au+Au collisions
• Omega and Antiomega production in central Pb+Pb collisions at 40 and 158 AGeV
• Energy dependence of hyperon production in nucleus-nucleus collisions at SPS
• Status of Chemical Freeze-Out
• Centrality Dependence of Bulk Fireball Properties at RHIC
• Canonical aspects of strangeness enhancement
• The Baryon Anomaly: Evidence for Color Transparency and Direct Hadron Production at RHIC
• Identified particles at large transverse momenta in STAR in Au+Au collisions @ sqrt(s_NN) = 200 GeV
• Centrality Dependence of Thermal Parameters in Heavy-Ion Collisions at CERN-SPS
• Test of Chemical freeze-out at RHIC
• Energy and System Size Dependence of Strangeness Production from SPS to RHIC

Cited by in corpus (75)

• First Results from Pb+Pb collisions at the LHC
• Multiplicity Dependence of Pion, Kaon, Proton and Lambda Production in p-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Pion, kaon, and proton production in central Pb-Pb Collisions at $\sqrt{s_{NN}}=2.76$ TeV
• Status and initial physics performance studies of the MPD experiment at NICA
• Strange hadron production in Au+Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 7.7, 11.5, 19.6, 27, and 39 GeV
• Dynamically integrated transport approach for heavy-ion collisions at high baryon density
• Strange freezeout
• Chiral symmetry restoration in heavy-ion collisions at intermediate energies
• Description of Hot and Dense Hadron Gas Properties in a New Excluded-Volume model
• Chiral symmetry restoration versus deconfinement in heavy-ion collisions at high baryon density
• Investigating the collision energy dependence of $\eta$/s in RHIC beam energy scan using Bayesian statistics
• An overview of the experimental study of quark-gluon matter in high-energy nucleus-nucleus collisions
• Production of Light Nuclei in Heavy Ion Collisions Within Multiple Freezeout Scenario
• Can Tsallis distribution fit all the particle spectra produced at RHIC and LHC?
• Beam Energy Dependence of Triton Production and Yield Ratio (${\mathrm{N}}_t\times {\mathrm{N}}_p/{\mathrm{N}}_d^2$) in Au+Au Collisions at RHIC
• Multiplicity dependence of (multi-)strange baryons in the canonical ensemble with phase shift corrections
• An evidence of triple kinetic freezeout scenario observed in all centrality intervals in Cu-Cu, Au-Au and Pb-Pb collisions at high energies
• Alternative Scenarios of Relativistic Heavy-Ion Collisions: II. Particle Production
• A hybrid model approach for strange and multi-strange hadrons in 2.76 A TeV Pb+Pb collisions
• Centrality dependence of freeze-out parameters from the beam energy scan at STAR
• Measurement of B${}_{\mathrm{s}}^0$ meson production in pp and PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Flavour and Energy Dependence of Chemical Freeze-out Temperatures in Relativistic Heavy Ion Collisions from RHIC-BES to LHC Energies
• Nonequilibrium kinetic freeze-out properties in relativistic heavy ion collisions from energies employed at the RHIC beam energy scan to those available at the LHC
• Energy dependence of light (anti)nuclei and (anti)hypertriton production in the Au-Au collision from $\sqrt{s_{\mathrm{NN}}}=5.0$ to $5020$ GeV
• Subthreshold Xi- Production in Collisions of p(3.5 GeV)+Nb
• Freezeout systematics due to the hadron spectrum
• Hadron Yield Correlation in Combination Models in High Energy AA Collisions
• Degree of Chemical Non-equilibrium in Central Au-Au Collisions at RHIC energies
• Systematics of chemical freeze-out parameters in heavy-ion collision experiments
• Particle production and chemical freezeout from the hybrid UrQMD approach at NICA energies
• Study of Dependence of Kinetic Freezeout Temperature on the Production Cross Section of Particles in Various Centrality Intervals in Au Au and Pb Pb Collisions at High Energies
• Properties of the QGP created in heavy-ion collisions
• Production of light flavor and single-charmed hadrons in $pp$ collisions at $\sqrt{s}=5.02$ TeV in an equal-velocity quark combination model
• K0s and Λ production in Pb--Pb collisions with the ALICE experiment
• Quark number scaling of $p_T$ spectra for $\Omega$ and $\varphi$ in relativistic heavy-ion collisions
• Production of Kaon and $\Lambda$ in nucleus-nucleus collisions at ultra-relativistic energy from a blast wave model
• Onset of Constituent Quark Number Scaling in Heavy-Ion Collisions at RHIC
• Di-Hadron Correlations with Identified Leading Hadrons in 200 GeV Au+Au and d+Au Collisions at STAR
• Geometrical scaling for energies available at the BNL Relativistic Heavy Ion Collider to those at the CERN Large Hadron Collider
• Decoupling of non-strange, strange and multi-strange particles from the system in Cu-Cu, Au-Au and Pb-Pb collisions at high energies
• Strange matter and kaon to pion ratio in SU(3) PNJL model
• Universal Formula for Baryon Spectra in Heavy-ion Collisions and its Implications
• Novel scheme for parametrizing the chemical freeze-out surface in Heavy Ion Collision Experiments
• Strange hadron production in a quark combination model in Au+Au collisions at RHIC energies
• Study of freeze-out dynamics in STAR at RHIC Beam Energy Scan Program
• Centrality and Transverse momentum dependencies of Hadrons in Xe+Xe collisions at $\sqrt{s_{NN}}=5.44$ TeV from a multi-phase transport model
• Baryon-anti-baryon Flavor Correlation in Quark Combination Models in Heavy Ion Collisions
• Thermodynamic Signatures and Phase Transitions in High-Energy Au-Au Collisions
• The effect of flow on Hadronic Spectra in an Excluded-Volume Model
• Evidence for chiral symmetry restoration in heavy-ion collisions
• Collision Energy Dependence of Particle Ratios and Freeze-out Parameters in Ultra Relativistic Nucleus Nucleus Collisions
• Proton and Lambda-Hyperon Production in Nucleus-Nucleus Collisions
• Dependence of asymmetries for charge distribution with respect to the reaction plane on initial energy in heavy ion collisions
• $K^{\ast 0}$ and ${\Sigma }^{\ast }$ production in Au+Au collisions at $\sqrt{s_{NN}}=$ 200 GeV and 62.4 GeV
• Revealing the collision energy dependence of $\eta /s$ in RHIC-BES Au+Au collisions using Bayesian statistics
• Formation of light nuclei at chemical freezeout: Description within a statistical thermal model
• Near-side azimuthal and pseudorapidity correlations using neutral strange baryons and mesons in d+Au, Cu+Cu and Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Beam energy dependence of net-hyperon yield and its implication on baryon transport mechanism
• Elliptic Flow of Heavy-Flavor Decay Electrons in Au+Au Collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 27 and 54.4 GeV at RHIC
• Systematic study of the elliptic flow parameter using a heavy-ion collision model
• Strange Baryon to Meson Ratio
• Universal QGP Hadronization Conditions at RHIC and LHC
• Multistrange Hyperon Production on Nuclear Targets
• Medium effects in antikaon-induced ${\Xi }^{-}$ hyperon production on nuclei near threshold
• Universal Energy Dependence of Measured Temperatures for Baryons Produced in Heavy-ion Collisions
• Effect of Light Nuclei on Chemical Freeze-out Parameters at RHIC Energies
• Strangeness chemical potential from the baryons relative to the kaons particle ratios
• NICA-MPD: azimuthal and femtoscopic particle correlations
• 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
• Chemical freeze-out systematics of thermal model analysis using hadron yield ratios
• Identified charged hadron production in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 54.4 GeV with the STAR detector
• Strange particles production in relativistic nucleus-nucleus collisions at the RHIC BES energy region
• Non-Extensive Transverse Momentum Distribution For Identified Particles at $\sqrt{S_{NN}}=$ 7.7, 11.5, 19.6, 27, 39 \hspace{0.05cm} GeV
• Observation of different scenarios in different temperatures in small and large collision systems
• Higher order cumulants of electric charge and strangeness fluctuations on the crossover line