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HK: Fachverband Physik der Hadronen und Kerne

HK 57: Heavy Ion Collisions and QCD Phases X

HK 57.5: Talk

Friday, March 2, 2018, 15:15–15:30, HZO 80

Two-Pion Intensity Interferometry for Imaging Collisions of Au+Au at 1.23A GeV with HADES — •Robert Greifenhagen^{1, 2} and Roland Kotte¹ for the HADES collaboration — ¹Helmholtz-Zentrum Dresden-Rossendorf — ²Technische Universität Dresden

We present first results on identical pion intensity interferometry (HBT) to study space-time features of collisions of Au+Au at 1.23A GeV. The data are taken with the HADES set-up at SIS18/GSI Darmstadt. Our data allow access to the dependence of the pion emitting source on both the pair transverse momentum and the collision centrality. Comparing our femtoscopic results at √(s_NN)=2.4 GeV to similar results achieved for heavy-ion collisions in a broad band of beam energies we see a very smooth evolution of the source parameters.