9–13 Jul 2018
Sofia, Bulgaria
Europe/Sofia timezone

Event reconstruction of free-streaming data for the RICH detector in the CBM experiment

11 Jul 2018, 12:00
15m
Hall 3.1 (National Palace of Culture)

Hall 3.1

National Palace of Culture

presentation Track 1 - Online computing T1 - Online computing

Speaker

Dr Semen Lebedev (Justus Liebig University Giessen)

Description

The Compressed Baryonic Matter (CBM) experiment at the future FAIR facility requires fast and efficient event reconstruction algorithms. CBM 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 given period of time 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, our adoption of the reconstruction software in the RICH detector to the free-streaming data flow are presented. We present concepts and implementations to adopt the classical event based reconstruction to the free-streaming mode. Two possible options are discussed, namely: hit preselection in a time window and ring reconstruction with time measurements as an additional parameter. The possibility of event overlaps is discussed in detail.

Primary authors

Dr Semen Lebedev (Justus Liebig University Giessen) for the CBM collaboration

Presentation materials