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2 November 2020 Flow correction for 1.23A GeV au+au collisions at the HADES experiment
Mateusz Grunwald
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Proceedings Volume 11581, Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2020; 115810R (2020) https://doi.org/10.1117/12.2580447
Event: Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2020, 2020, Wilga, Poland
Abstract
Heavy-ion collisions at energies of few GeV, delivering an information about highly compressed matter under conditions similar to those inside neutron stars, are characterised by very high nuclei stopping. In particular circumstances this phenomenon can lead to affection of source expansion and impeded particle reconstruction results. The HADES detector is a large acceptance spectrometer for fixed target collisions, operating with heavy ion beams of about 1-2A GeV kinetic energy, delivered by SIS18 accelerator. It was designed mostly for detecting dileptons, originating from light vector meson decays. The following paper presents an analysis of Au+Au collisions at 1.23A GeV, measured by the HADES experiment, performed in order to study a detector effects related to increased local phase space occupancy. For this purpose the azimuthal particle correlations ware was investigated. Their distributions have been studied in terms of deviations caused by occupancy-related effects, lading to creating a correction method, developed to overcome the data distortion.
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Mateusz Grunwald "Flow correction for 1.23A GeV au+au collisions at the HADES experiment", Proc. SPIE 11581, Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2020, 115810R (2 November 2020); https://doi.org/10.1117/12.2580447
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KEYWORDS
Particles
Leptons
Electrons
Anisotropy
Photons
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