Erlangen 2026 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 27: Poster Session
HK 27.26: Poster
Mittwoch, 18. März 2026, 16:15–18:30, Redoutensaal
Prospect of hypernuclei flow measurements with HADES in Ag+Ag collisions at √sNN = 2.55 GeV — •Christopher Grimm for the HADES collaboration — Goethe-Universität, Frankfurt am Main
The hyperon-nucleon (Y-N) interaction plays an important role in the equation of state (EOS) of nuclear matter at high baryon densities, crucial for the understanding of neutron stars. To this end, the measurement of hypernuclei, in particular their collective behavior, offers unique insights. On earth we can produce hypernuclei in heavy-ion collisions and detect them with detectors like the High Acceptance Di-Electron Spectrometer (HADES) located at the GSI Helmholtz Centre for Heavy-Ion Research in Darmstadt, Germany. HADES combines a nearly complete azimuthal coverage with a high mass resolution and is therefore able to reconstruct hypernuclei in a significant number.
The HADES collaboration presented the first observation of Λ3H and Λ4H in Ag+Ag collisions at √sNN = 2.55 GeV, emitted around mid-rapidity, yielding approximately 1000 Λ3H and 4000 Λ4H signal candidates. In this work we estimate if this multiplicity is sufficient to measure, for the first time, the directed (v1) and elliptic (v2) flow components of hypernuclei. Additionally, we present predictions for the elliptic flow of hypernuclei (v2) using a coalescence model.
Keywords: HADES; heavy-ion collisions; hypernuclei; flow; coalescence