Collision of heavy nuclei at very high energy provides opportunity to study nuclear matter at very high density. It is established that new form of very dense matter is formed in Au+Au collisions at RHIC. At such high density, it is believed that quarks and gluons are no longer confined in hadrons, but become constitutes of a quark-gluon plasma (QGP). The matter is very dense and opaque, and it has almost no viscosity and behaves like perfect fluid. These conclusions are based on two key discoveries, namely, strong suppression of high transverse momentum particles and strong elliptic flow. Experimental results from RHIC are presented.
Perspective in Nuclear Physics
- Pub Date:
- May 2009
- Low and intermediate energy heavy-ion reactions;
- Quark deconfinement quark-gluon plasma production and phase transitions;
- Quarks gluons and QCD in nuclei and nuclear processes;
- Hydrodynamic models;