| Issue |
EPJ Web Conf.
Volume 364, 2026
XXXI International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions “Quark Matter 2025”
|
|
|---|---|---|
| Article Number | 07003 | |
| Number of page(s) | 4 | |
| Section | Electromagnetic Probes | |
| DOI | https://doi.org/10.1051/epjconf/202636407003 | |
| Published online | 17 April 2026 | |
https://doi.org/10.1051/epjconf/202636407003
Studying properties of baryon-dominated matter with di-leptons
Technische Universität Darmstadt, 64289 Darmstadt, Germany
* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 17 April 2026
Abstract
Virtual photons (γ*) are an excellent tool to investigate strong-interaction matter under extreme conditions. Their penetrating nature not only enables the study of bulk properties of such a medium (e.g. temperature measurements unbiased by the collective expansion of the fireball) but also an insight to the microscopic structure of matter. The HADES experiment has measured virtual photons in their di-electron decay channel in heavy-ion collisions as well as in proton- and pion-induced reactions in the center-of-mass energy range of a few GeV. In this contribution, we emphasize multi-differential spectra and collective behavior of di-lepton sources in Au+Au collisions at √sNN = 2.42 GeV and Ag+Ag collisions at √sNN = 2.55 and 2.42 GeV and contrast them with hadronic probes at the freeze-out stage.
© The Authors, published by EDP Sciences, 2026
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