PHENIX ExperimentThe PHENIX Experiment is the largest of the four experiments that have taken data at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory. RHIC is the most versatile collider in the world, having collided nuclei from hydrogen (protons) to uranium, at center-of-mass energies ranging from a few to hundreds of GeV per nucleon-nucleon collision. RHIC furthermore has the ability to collide polarized proton beams, permitting a range of spin-spin and spin-momentum correlation measurements.
PHENIX, the Pioneering High Energy Nuclear Interaction eXperiment, is an experiment for the investigation of high energy collisions of heavy and light nuclei and protons. PHENIX is designed specifically to measure direct probes of the collisions such as electrons, muons, and photons. In broad strokes, the physics program of PHENIX is to study a wide range of QCD systems, from protons as the simplest stable QCD bound state to collections of QCD bound states in the form of nuclei, to QCD matter at such high energy densities that bound states can't form, and instead a quark-gluon plasma is created. PHENIX took data from 2000 until June 2016 and is now in full-time data analysis mode.
Click here for PHENIX publications and public talks.
sPHENIX is a proposed follow-up experiment at RHIC. The sPHENIX collaboration was officially formed in 2015. See the sPHENIX wiki for more information on the project.