A novel scenario for the production of antihyperons in relativistic heavy ion collisions

Abstract

We elaborate on our recent suggestion on antihyperon production in relativistic heavy ion collisions by means of multi-mesonic (fusion-type) reactions. It will be shown that the (rare) antihyperons are driven towards chemical equilibrium with pions, nucleons and kaons on a timescale of 1--3 fm/c in a still moderately baryon-dense hadronic environment.

Comments: 4 pages, 3 figures, Contr. to QM2001: 15th. International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions