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HK: Fachverband Physik der Hadronen und Kerne
HK 44: Heavy-Ion Collisions and QCD Phases XI
HK 44.1: Gruppenbericht
Donnerstag, 2. April 2020, 14:00–14:30, J-HS G
Λ Polarization in Au+Au collisions at √sNN = 2.4 GeV measured with HADES — •Frederic Kornas for the HADES collaboration — TU Darmstadt, Darmstadt, Germany
In peripheral heavy-ion collisions there are very strong initial velocity profiles due to the different stopping power perpendicular to the beam axis. This might lead to vortical effects and manifest itself in a polarization of the particle spins. Such a polarization has been measured through the weak decay of the Λ hyperon by the ALICE and STAR collaboration showing an increase towards lower beam energies to √sNN = 7.7 GeV up to PΛ ≈ 2 %.
In this contribution the Λ polarization measurement with HADES at √sNN = 2.4 GeV will be presented. In addition results for the flow components v1 and v2 of the Λ will be shown too.
This work has been supported by Stiftung GIERSCH.