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HK: Physik der Hadronen und Kerne

HK 53: Physik mit schweren Ionen

HK 53.3: Group Report

Thursday, March 23, 2006, 18:00–18:30, D

Elliptic flow of Kaons and Antikaons in heavy-ion collisions at SIS energies. — •Mateusz Płoskoń — Institut für Kernphysik, Universität Frankfurt, Germany

The collective flow of kaons and antikaon has been measured in Ni+Ni and Au+Au collisions at beam energies between 1 and 2 AGeV with the Kaon Spectrometer at GSI Darmstadt. The investigation of the azimuthal angular emission pattern of K⁺ and K⁻ mesons provides a unique possibility to address the questions of strangeness production mechanisms and the in-medium Kaon-Nucleon potentials at SIS energies[1]. The experimental data are presented and compared to various recent model calculations[2].

[1] A. Förster et al., Phys. Rev. Lett., 91:152301 (2003).
F. Uhlig et al., Phys. Rev. Lett., 95:012301 (2005).

[2] C. Hartnack and J. Aichelin, J. Phys. G 30(1):(2004).
W. Cassing et al., Nucl. Phys. A727 (2003).
E. Bratkovskaya, private communication (2005).