Dresden 2013 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 62: Schwerionenkollisionen und QCD Phasen

HK 62.6: Vortrag

Donnerstag, 7. März 2013, 15:30–15:45, HSZ-201

Resolving substructures in the emission geometry using azimuthalsensitive HBT — •Gunnar Graef — Frankfurt Institute for Advanced Studies (FIAS), Ruth-Moufang-Str. 1, D-60438 Frankfurt — Institute für Theoretische Physik, Goethe-Universität, Frankfurt am Main

We use the non-equilibrium transport approach Ultra-relativistic Quantum Molecular Dynamics (UrQMD) to compute the dynamics of heavy ion collisions up to LHC energies. From this model we obtain directly the full phasespace distribution of all particles at the kinetic freeze out. By performing a Hanbury-Brown Twiss analysis differential in azimuth angle we are able to extract a distortion and a tilt of the source away from the beam axis. In the freeze out distribution we do not only observe a tilt but also a substructure that originates from particles emitted at different collision times. We show that it is in principle possible to resolve the substructure with experimental methods.
G. G. thanks the Helmholtz Research School for Quark Matter Studies (H-QM) and the Helmholtz Center for FAIR (HIC for FAIR) for support and the LOEWE-CSC for providing computational resources.