Anomalous net-baryon-rapidity spectra at RHIC
Abstract
Net-baryon rapidity distributions in central Au+Au collisions at sNN=200 GeV are shown to consist of three components. The nonequilibrium contributions are accounted for in a Relativistic Diffusion Model. Near midrapidity, a third fraction containing Zeq≃22 protons reaches local statistical equilibrium in a discontinuous transition. It may be associated with a deconfinement of the participant partons and thus, serve as a signature for Quark-Gluon Matter formation.
- Publication:
-
Physics Letters B
- Pub Date:
- September 2003
- DOI:
- arXiv:
- arXiv:hep-ph/0301004
- Bibcode:
- 2003PhLB..569...67W
- Keywords:
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- High Energy Physics - Phenomenology;
- Nuclear Theory
- E-Print:
- 11 pages, 2 figures
