PHENIX results on production in Au+Au and Cu+Cu collisions at

Diffractive J/ψ production in Ultraperipheral AuAu Collisions at RHIC

Results from Phenix on Deuteron and Anti-deuteron Production in Au+au Collisions at Rhic

At the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory, protons and gold nuclei have been brought to collide at nucleon-nucleon center-of-mass energies up to √ sNN = 200 GeV. The data this presentation is based on are from Au+Au interactions at the maximum RHIC energy and were accumulated during the second run at RHIC in the year 2001. The results on deuteron and anti-d...

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...

Pion Interferometry in Auau Collisions at √ S Nn =200 Gev

We present preliminary results from a two-pion intensity interferometry analysis from Au+Au collisions at √ s NN =200 GeV measured in the STAR detector at RHIC. The dependence of the apparent pion source on multiplicity and transverse momentum are discussed and compared with preliminary results from d+Au and p+p collisions at the same beam energy.

Results on Photon Production in Au+Au Collisions at RHIC

The aim of this analysis is to search for direct photons, i.e. photons that are not produced in hadron decays such as π → γγ or η → γγ. Direct photons are generally subdivided into prompt photons from initial hard parton scatterings and thermal photons from a possible quark-gluon plasma and from the hadron gas. Prompt photons are produced before a possible quark-gluon plasma has formed. Above a...