The experimental study of the phase structure of strongly interacting matter
- Purdue Univ., West Lafayette, IN (United States)
Over the duration of the project period, our research has been focused on the beam energy scan data conducted at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory in order to search for the location of the Critical End Point (CEP) temperature or cross-over in the nuclear phase diagram using the STAR detector at RHIC and to determine the Equation of State (EOS) and the QGP transport coefficients. Working at the RHIC early on, we discovered the Long Range forward-backward multiplicity Correlations (LRC) which quantitatively confirmed the predictions of saturation models, in particular, the Color Glass Condensate (CGC) and the Color String Percolation Model (CSPM). We have used the CSPM to extract the initial temperature from the data. The clustering of color sources may be the way to achieve thermalization in A-A and N-N collisions. Recently we also used CSPM to measure the shear viscosity to entropy ratio at RHIC and LHC temperatures. The ratios are in agreement with values expected for a strongly interacting QGP. The thermodynamic quantities,temperature and the equation of state are in agreement with lattice QCD.
- Research Organization:
- Purdue Univ., West Lafayette, IN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- FG02-88ER40412
- OSTI ID:
- 1434505
- Report Number(s):
- DOE-PURDUE-40412-1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Conformal relativistic viscous hydrodynamics: Applications to RHIC results at {radical}(s{sub NN})=200 GeV
New State of Nuclear Matter: Nearly Perfect Fluid of Quarks and Gluons in Heavy Ion Collisions at RHIC Energies From Charged Particle Density to Jet Quenching