PoS - Proceedings of Science
Volume 380 - Particles and Nuclei International Conference 2021 (PANIC2021) - Hot and dense matter physics - QGP and heavy ion collisions
Virtual Photon Measurements with the HADES at GSI
J.H. Otto*  on behalf of the HADES collaboration
Full text: pdf
Pre-published on: March 04, 2022
Published on: May 24, 2022
In this work we present work in progress results on the dielectron analysis of the HADES Ag+Ag data at a centre-of-mass energy of $\sqrt{s_{NN}} = 2.55 \, GeV$. The high statistics data sample in combination with a strongly increased electron detection efficiency allows for a signal even in the $\varPhi$-meson mass region. With the recent upgrade of the HADES RICH photodetector an unprecedented quality and signal-to-background ratio was achieved. The obtained dielectron signal spectrum is compared to the simulated hadronic cocktail spectrum at freeze out.
DOI: https://doi.org/10.22323/1.380.0235
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