Azimuthal anisotropy of ϕ meson in U+U and Au+Au collisions at RHIC

Azimuthal anisotropy of φ meson in U+U and Au+Au collisions at RHIC

The measurements of the azimuthal anisotropy of φ meson in the U+U and Au+Au collisions at the Relativistic Heavy-Ion Collider (RHIC) are reported. The centrality dependence of the Fourier coefficients v2, v3, v4 and v5 is presented for φ meson at midrapidity (|η| ≤ 1.0), in U+U and Au+Au collisions at sNN = 193 and 200 GeV, respectively. The η-sub event plane method is used with a η gap of 0.1...

Jet Tomography Studies in AuAu Collisions at RHIC Energies

Recent RHIC results on pion production in AuAu collision at √ s = 130 and 200 AGeV display a strong suppression effect at high pT . This suppression can be connected to final state effects, namely jet energy loss induced by the produced dense colored matter. Applying our pQCD-based parton model we perform a quantitative analysis of the measured suppression pattern and determine the opacity of t...

Diffractive J/ψ production in Ultraperipheral AuAu Collisions at RHIC

Azimuthal Anisotropy of Charged and Identified High pT Hadrons in Au+Au Collisions at RHIC

We report new results on v2(pT ) for Au+Au collisions at √ sNN=200 GeV for charged hadrons, pions, kaons, (anti)protons, K s , and Λ. The analysis is extended to pT = 12 GeV/c for charged hadrons and pT = 4 GeV/c for identified particles. A comparison of the azimuthal anisotropy of charged hadrons measured at √ sNN=130 and 200 GeV is presented. The pT -dependence of baryon versus meson elliptic...

Azimuthal anisotropy and fundamental symmetries in QCD matter at RHIC

A study of collective behavior in heavy ion collisions provides one of the most sensitive and promising probes for investigation of possible formation of new extreme state of strong interacting matter and elucidating its properties. Systematic of experimental results for final state azimuthal anisotropy is presented for heavy ion interactions at RHIC. Experimental data for azimuthal anisotropy ...