Diffusion and local deconfinement in relativistic systems

• Verfasst von: Wolschin, Georg [VerfasserIn]
• Titel: Diffusion and local deconfinement in relativistic systems
• Verf.angabe: Georg Wolschin
• E-Jahr: 2005
• Jahr: 25 March 2005
• Umfang: 5 S.
• Fussnoten: Gesehen am 29.11.2017
• Titel Quelle: Enthalten in: Nuclear physics <Amsterdam> / A
• Ort Quelle: Amsterdam : North-Holland Publ. Co., 1967
• Jahr Quelle: 2005
• Band/Heft Quelle: 752(2005), Seite 484-488
• ISSN Quelle: 1873-1554
• DOI: doi:10.1016/j.nuclphysa.2005.02.053
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1565841409

Abstract

The evolution of net-proton rapidity spectra with sNN is heavy relativistic systems is proposed as an indicator for local equilibration, longitudinal expansion, and deconfinement. Bell-shaped distributions in central collisions at AGS energies and double-humped nonequilibrium spectra at SPS ishow substantial collective expansion. The broad midrapidity valley appearing at RHIC indicates longitudinal collective expansion of a locally equilibrated subsystem. In central Au-Au collisions at sNN=200 GeV, fast local equilibration which is most likely due to deconfinement is estimated in a Relativistic Diffusion Model to occur for 14 per cent of the incoming baryons.