Fast antibaryon production: A new collective effect in Pb-Pb collisions?

Abstract

Recent experimental data on antibaryon production outside nucleon-nucleon kinematical limits have been obtained in Pb-Pb collisions at SPS energies. We present a possible explanation for this phenomenon based on the existence of collective effects. String Fusion Model results are compared to the data and predictions are also presented.

Comments: Latex, 10 pages, 3 Postscript figures