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HK: Fachverband Physik der Hadronen und Kerne

HK 56: Schwerionenkollisionen und QCD Phasen VII

HK 56.8: Vortrag

Donnerstag, 24. März 2011, 18:30–18:45, HS AP

High-density behavior of the nuclear symmetry energy — Theodoros Gaitanos¹, Massimo Di Toro², Vincenzo Greco^2,3, Vaia Prassa⁴, and •Hermann Wolter⁵ — ¹Univ. Giessen — ²LNS, INFN, Catania — ³Univ. of Catania — ⁴Univ. of Thessaloniki — ⁵Univ. München

The density dependence of the nuclear symmetry energy is rather uncertain from results of many-body theory, but is important in the physics of exotic nuclei and astrophysical processes. In particular, the behaviour at density above saturation density is very controversial. It can be investigated in relativistic heavy ion collisions; however, sensitive and robust probes have to be identified. Probes that have been discussed are pre-equilibrium nucleons, isospin flow of nucleons, or ratios of yields of isospin partners of produced particles, such as pions and kaons. In this contribution we will discuss from the point of view of simulations of heavy ion collisions the status of these investigations, and, in particlar, the situation with respect to particle probes.

* supported by the DFG cluster Origin and structure of the Universe, and by the Maier-Leibnitz-Laboratory LMU and TU Munich.