München 2019 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 45: Instrumentation X and Applications

HK 45.6: Vortrag

Mittwoch, 20. März 2019, 18:00–18:15, HS 12

Validating the Digitization in the O² TPC Simulation — •Thomas Klemenz for the ALICE collaboration — Technische Universität München, Physik Department E62, Excellence Cluster ’Universe’, Garching

The ALICE detector will be upgraded in the course of the LHC high luminosity upgrade starting 2019. In particular, the present readout of the ALICE TPC will not be able to cope with the enhanced interaction rates provided by the LHC in Run3. Therefore, the readout will rely on continuously read out GEM-based readout chambers. This upgrade will also severely affect the data processing. The new Online-Offline computing system, O², will replace the current framework, AliRoot, to cope with the continuous readout.

The upgrade of the readout demands an update of the implementation of the signal formation in all sub-detectors, and mostly relevant for this work, the TPC. Therefore, the digitization of the TPC was validated with data from a test beam of electrons and pions that was taken with a 4-GEM inner readout chamber from the pre-production stage at the CERN PS in 2017.

This research was supported by the DFG cluster of excellence ’Origin and Structure of the Universe’, BMBF, HGF and the SFB 1258.