SMuK 2023 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HK: Fachverband Physik der Hadronen und Kerne
HK 6: Heavy-Ion Collisions and QCD Phases II
HK 6.5: Vortrag
Montag, 20. März 2023, 17:45–18:00, SCH/A315
Momentum dependence of thermal dilepton invariant mass spectra combining transport models and an FRG spectral function — •Maximilian Wiest1, Tetyana Galatyuk1,2,4, Ralf-Arno Tripolt3, Lorenz von Smekal3,4, and Jochen Wambach1 — 1Technical University of Darmstadt, Germany — 2GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany — 3Justus Liebig University Giessen, Germany — 4Helmholtz Research Academy Hesse for FAIR (HFHF)
Dileptons provide a unique way to access the properties of the fireball in heavy ion-collisions. While the bulk of the detected particles stemming from heavy ion collisions are hadrons, particles heavily influenced by final state interactions, dileptons do not suffer from this disadvantage and can leave the fireball undisturbed, probing the hot and dense matter before it freezes out. We use the microscopic transport model UrQMD to simulate heavy-ion collisions at SIS18 energies in different centrality classes. Employing a Coarse Graining approach, we are able to combine the simulated microscopic dynamics with in-medium spectral functions obtained from FRG methods at finite momenta. This allows to study the impact of finite momentum effects of the spectral function on the dilepton spectra invariant mass spectra measured at SIS18 energies.
Supported by VH-NG-823, DFG CRC-TR 211 and GSI.