phi-meson production and partonic collectivity at RHIC

Strange quark collectivity of φ meson at RHIC

Based on AMPT model, the elliptic flow v2 of φ mesons which is reconstructed from KK at the Relativistic Heavy Ion Collider (RHIC) energy has been studied. The results show that reconstructed v2 of φmeson can keep the earlier information before φ decays and it seems to obey the number of constituent quark scaling as other mesons and baryons. This result indicates that the φ v2 mostly reflects t...

Partonic flow and phi-meson production in Au+Au collisions at root s(NN)=200 GeV

Probing Dense Partonic Matter at RHIC

1. Introduction Comprehensive analysis of the experimental data collected by the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) during the first three years of operation has shown that a new state of matter is created in Au+Au collisions. This matter cannot be described in terms of ordinary color neutral hadrons [1]. Strongly interacting systems under extreme conditions of temp...

Partonic effects on anisotropic flows at RHIC

We report recent results from a multiphase transport (AMPT) model on the azimuthal anisotropies of particle momentum distributions in heavy ion collisions at the Relativistic Heavy Ion Collider. These include higher-order anisotropic flows and their scaling, the rapidity dependence of anisotropic flows, and the elliptic flow of charm quarks. PACS numbers: 25.75.Ld, 24.10.Lx

Phi Meson Production in Heavy-Ion Collisions at SIS Energies

Phi meson production in heavy-ion collisions at SIS/GSI energies (∼ 2 GeV/nucleon) is studied in the relativistic transport model. We include contributions from baryon-baryon, pion-baryon, and kaon-antikaon collisions. The cross sections for the first two processes are obtained in an one-bosonexchange model, while that for the last process is taken to be of Breit-Wigner form through the phi mes...