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HK: Physik der Hadronen und Kerne

Kaon and Antikaon Production in Nucleus-Nucleus Collisions at SIS Energies — •Florian Uhlig — TU Darmstadt

The study of the

properties of hadrons in dense matter and the nuclear equation-of-state

at high baryon densities represents a major goal of today’s

heavy-ion collision experiments.

The production of strange particles

serves as a sensitive tool for probing both issues [1][2].

Systematic measurements of kaons and antikaons emitted in C+C, Ni+Ni

and Au+Au collisions were performed with the Kaon Spectrometer KaoS at

SIS/GSI. The particle yields were determined as function of momentum,

collision centrality and emission angle. Of particular interest with

respect to in-medium effects is the azimuthal emission pattern of

kaons and antikaons. Recent results will be presented.

[^*] supported by BMBF and GSI

[1] F. Laue, C. Sturm et al., Phys. Rev. Lett. 82 (1999) 1640

[2] C.Sturm et al., Phys. Rev. Lett. 86 (2001) 39