Phi meson production in Au+Au and p+p collisions at sqrt (s)=200 GeV

Abstract

We report the STAR measurement of Phi meson production in Au+Au and p+p collisions at sqrt (s)=200 GeV. Using the event mixing technique, the Phi spectra and yields are obtained at mid-rapidity for five centrality bins in Au+Au collisions and for non-singly-diffractive p+p collisions. It is found that the Phi transverse momentum distributions from Au+Au collisions are better fitted with a single-exponential while the p+p spectrum is better described by a double-exponential distribution. The measured nuclear modification factors indicate that Phi production in central Au+Au collisions is suppressed relative to peripheral collisions when scaled by the number of binary collisions. The systematics of <pt> versus centrality and the constant Phi/K- ratio versus beam species, centrality, and collision energy rule out kaon coalescence as the dominant mechanism for Phi production.

6 pages, 3 figures, submitted to Phys. Rev. Lett

References in corpus (18)

• Relativistic Hadron-Hadron Collisions in the Ultra-Relativistic Quantum Molecular Dynamics Model (UrQMD)
• Thermal phenomenology of hadrons from 200 AGeV S+S collisions
• Identified Charged Particle Spectra and Yields in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Transverse momentum and collision energy dependence of high $p_T$ hadron suppression in Au+Au collisions at ultrarelativistic energies
• Hadronization in heavy ion collisions: Recombination and fragmentation of partons
• Parton coalescence and antiproton/pion anomaly at RHIC
• Hadron production in heavy ion collisions: Fragmentation and recombination from a dense parton phase
• Energy Dependence of Pion and Kaon Production in Central Pb+Pb Collisions
• Elliptic flow at large transverse momenta from quark coalescence
• Particle-type dependence of azimuthal anisotropy and nuclear modification of particle production in Au+Au collisions at s(NN)**(1/2) = 200-GeV
• Identified particle distributions in pp and Au+Au collisions at sqrt{s_NN}=200 GeV
• Flavor Production in Pb(160AGeV) on Pb Collisions: Effect of Color Ropes and Hadronic Rescattering
• Anisotropic flow
• Scaling Distributions of Quarks, Mesons and Proton for all $p_T$, Energy and Centrality
• Flavor ordering of elliptic flows at high transverse momentum
• Hadronic freeze-out following a first order hadronization phase transition in ultrarelativistic heavy-ion collisions
• Kaon Production and Kaon to Pion Ratio in Au+Au Collisions at $\snn=130$ GeV
• Production of phi Mesons in Au+Au Collisions at 11.7 A GeV/c

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