| Issue |
EPJ Web Conf.
Volume 214, 2019
23rd International Conference on Computing in High Energy and Nuclear Physics (CHEP 2018)
|
|
|---|---|---|
| Article Number | 01043 | |
| Number of page(s) | 7 | |
| Section | T1 - Online computing | |
| DOI | https://doi.org/10.1051/epjconf/201921401043 | |
| Published online | 17 September 2019 | |
https://doi.org/10.1051/epjconf/201921401043
Event reconstruction of free-streaming data for the RICH detector in the CBM experiment
1
GSI Helmholtzzentrum für Schwerionenforschung GmbH
D-64291
Darmstadt
Germany
2
Department of Physics, University of Wuppertal,
D-42097,
Wuppertal
Germany
3
Institute of Physics II and Institute of Applied Physics, Justus Liebig University Giessen,
D-35392,
Giessen,
Germany
4
National Research Centre "Kurchatov Institute" B.P.Konstantinov Petersburg Nuclear Physics Institute
188300,
Gatchina,
Russia
5
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
115409
Moscow,
Russia
6
Institut für Kernphysik, Göthe University Frankfurt
D-60438 Frankfurt am Main
Germany
7
Laboratory of Information Technologies, Joint Institute for Nuclear research (JINR-LIT)
Dubna
Russia
8
St. Petersburg Polytechnic University (SPbPU), St. Petersburg
Russia
* e-mail: s.lebedev@gsi.de
Published online: 17 September 2019
The Compressed Baryonic Matter (CBM) experiment is a dedicated heavy ion collision experiment at the FAIR facility. It will be one of the first HEP experiments which works in a triggerless mode: data received in the DAQ from the detectors will not be associated with events by a hardware trigger anymore. All raw data within a giventime period will be collected continuously in containers, so-called time-slices. The task of the reconstruction algorithms is to create events out of this raw data stream. In this contribution, the optimization of the reconstruction software in the RICH detector to the free-streaming data flow is presented. The implementation of ring reconstruction algorithms which use time measurements of the hits as an additional parameter is discussed.
© The Authors, published by EDP Sciences, 2019
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