Dresden 2013 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 4: Schwerionenkollisionen und QCD Phasen
HK 4.1: Gruppenbericht
Montag, 4. März 2013, 11:00–11:30, HSZ-204
Investigating the In-medium Effects of Strange Particles with the FOPI detector — •Victoria Zinyuk and Norbert Herrmann — Physikalisches Institut, Uni Heidelberg
Strangeness production sub- or close-to-production threshold energies is believed to provide an insight into equilibration and the change of hadron properties in a hot and dense nuclear medium. K-mesons are predicted to exhibit a change of their effective in-medium mass and thus are an unique tool to study the partial restoration of the chiral symmetry of QCD.
The FOPI detector at SIS 18 allows the identification of charged kaons and the reconstruction of neutral particles as KS0, Λ0 and φ-mesons by their charged decay products in a wide range of phase space.
This presentation gives an overview of FOPI’s recent results from a high statistic heavy-ion experiment (Ni+Ni @ 1.93 AGeV) aiming at investigating the in-medium modifications in hot and compressed nuclear matter and from pion-induced reactions (π− @ 1.7 GeV/c) offering a reference at normal nuclear matter density.
This work was supported by BMBF 06HD7141I.