Seminarium Fizyki Jądra Atomowego

The transverse flow of strange hadrons in relativistic heavy ion collisions is predicted to be sensitive to many properties of the hot and dense nuclear matter produced in such interactions. Most importantly, we can get access to the interaction potential between said hadrons and the hadronic medium via model comparisons to the experimental data. Transverse flow can also bear imprint from changes of fundamental properties (effective mass, decay constant) of hadrons immersed in the medium (with the notable example ofsuch a study for charged K mesons) as well as the so-called Hyperon Puzzle in nuclear astrophysics.

In this contribution the basics of transverse flow analysis will be introduced to the audience. We will then move to the preliminary results of the analysis of transverse flow of charged K mesons and the Λ baryons emitted from Ag+Ag collisions at a beam kinetic energy of 1.6 GeV/nucleon. They were measured with the High Acceptance Di-Electron Spectrometer, based in GSI Darmstadt. The results will be presented as maps of v1 and v2 coefficients in the momentum phase-space -- for the Λ baryons no such result has ever been published within this energy regime.