Track reconstruction in a high-density environment with ALICE
- ALICE is the dedicated heavy-ion experiment at the CERN Large Hadron Collider (LHC). Its main tracking and particle-identification detector is a large volume Time Projection Chamber (TPC). The TPC has been designed to perform well in the high-track density environment created in high-energy heavy-ion collisions. In this proceeding, we describe the track reconstruction procedure in ALICE. In particular, we focus on the two main challenges that were faced during the Run 2 data-taking period (2015–2018) of the LHC, which were the baseline fluctuations and the local space charge distortions in the TPC. We present the corresponding solutions in detail and describe the software tools that allowed us to circumvent these challenges.
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| Author: | Mesut ArslandokORCiDGND, Ernst HellbärORCiDGND, Marian IvanovORCiDGND, Robert Helmut MünzerORCiDGND, Jens WiechulaORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-827149 |
| DOI: | https://doi.org/10.3390/particles5010008 |
| ISSN: | 2571-712X |
| Parent Title (English): | Particles |
| Publisher: | MDPI AG |
| Place of publication: | Basel |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2022/03/10 |
| Date of first Publication: | 2022/03/10 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Contributing Corporation: | ALICE Collaboration |
| Release Date: | 2024/06/20 |
| Tag: | Time Projection Chamber (TPC); event pileup; heavy-ion collisions;; interactive visualization; space charge distortions; tracking |
| Volume: | 5 |
| Issue: | 1 |
| Page Number: | 12 |
| First Page: | 84 |
| Last Page: | 95 |
| Note: | The ALICE Collaboration acknowledges the following funding agencies for their support in building and running the ALICE detector: Bundesministerium für Bildung und Forschung (BMBF) and GSI Helmholtzzentrum für Schwerionenforschung GmbH, Germany; United States Department of Energy, Office of Nuclear Physics (DOE NP), United States of America. |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - CC BY - Namensnennung 4.0 International |
