Strange particle production from SIS up to LHC

✍ Scribed by Helmut Oeschler

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 301 KB
• Volume: 53
• Category: Article
• ISSN: 0146-6410
• DOI: 10.1016/j.ppnp.2004.02.036

✦ Synopsis

A review of strange particle production in heavy ion collisions at incident energies from SIS up to collider energies is presented. A statistical model assuming chemical equilibrium and local strangeness conservation (i.e. strangeness conservation per collision) describes most of the observed features.

It is demonstrated that the K -production at SIS energies occurs predominantly via strangeness exchange and that this channel is approaching chemical equilibrium. The observed maximum in the K + /π + excitation function is also seen in the ratio of strange to non-strange particle production. The appearance of this maximum around 30 A GeV is due to the energy dependence of the chemical freeze-out parameters temperature T and baryo-chemical potential µ B .