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HK: Physik der Hadronen und Kerne

HK 13: Poster Session: Heavy Ions

HK 13.6: Poster

Dienstag, 12. März 2002, 10:30–12:45, Foyer Chemie

Λ - Production in C+C Reactions at 158 AGeV* — •I. Kraus¹, L. Betev², A. Billmeier¹, C. Blume¹, R. Bramm², P. Buncic², P. Dinkelaker², M. Gaździcki², T. Kollegger², C. Markert³, R. Renfordt², A. Sandoval¹, R. Stock², H. Ströbele², D. Vranić¹, A. Wetzler², and J. Zaranek² — ¹GSI, Darmstadt — ²Institut für Kernphysik, Frankfurt — ³Yale, New Haven, USA

The number of hyperons (Λ) per participating nucleon is higher in A+A than in p+p collisions [1]. It is interesting to measure the detailed behavior of hyperon production as a function of the system size in order to determine the onset of this type of strangeness enhancement.

NA49 has taken data not only on Pb+Pb but also C+C collisions. The results from the light C+C system are compared to earlier measurements of Λ hyperons in central S+S (NA35), central Pb+Pb and p+p interactions.

[1] A.Mischke et al. (NA49 Collab.), Proceedings of the 6th International Conference on Strangeness in Quark Matter 2001

* Supported by GSI and BMBF