Strangeness in Quark Matter

Strange meson spectral functions and cross sections in hot and dense nuclear matter

Not scheduled

20m

The University of Birmingham

Talk

Speaker

Daniel Cabrera (Frankfurt University and FIAS)

Description

We discuss updated results on the properties of strange mesons in nuclear matter at finite temperature from a chiral unitary approach in coupled channels, which incorporates the s- and p-waves of the kaon nuceon interaction. As a novelty, the in-medium scattering amplitudes and cross sections in several channels (such as Kbar N -> pi Sigma) are obtained in addition to the (off-shell) K and Kbar spectral functions and quasi-particle properties, which is of particular interest for microscopic transport evaluations of strangeness production and propagation in heavy-ion collisions. A reminder of previous results and comparison to data from the HSD transport approach, relying on a G-matrix calculation of strange meson spectral functions within a meson-exchange model, is presented. Progress on our understanding of strange meson interactions with hadronic matter, in view of in-medium cross sections within the chiral unitary model, is discussed.