EPJ Web Conf.
Volume 259, 2022The 19th International Conference of Strangeness in Quark Matter (SQM 2021)
|Number of page(s)||4|
|Published online||01 February 2022|
Systematics in the global polarization measurements of Λ hyperons with HADES at SIS18
1 Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany
* e-mail: email@example.com
Published online: 1 February 2022
The global polarization of Λ hyperons has been measured in Au+Au and Ag+Ag collisions at √SNN = 2.4 and 2.55 GeV recorded with HADES. An increase of the polarization is observed following the trend measured by the STAR Collaboration. The high statistics Ag+Ag data allowed for differential measurements of the polarization. The study of acceptance effects is very important in the fixed target setup, as the phase-space coverage is not symmetric. These studies are reported together with the evaluation procedure of the systematic uncertainties.
© The Authors, published by EDP Sciences, 2022
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