9th International Workshop on Ring Imaging Cherenkov Detectors (RICH 2016)

Event reconstruction for the CBM-RICH prototype beamtest data in 2014

5 Sept 2016, 15:00

30m

Bled, Slovenia

Board: 25

Poster Pattern recognition and data analysis Poster Session A

Speaker

Dr Semen Lebedev (Justus Liebig University Giessen)

Description

The Compressed Baryonic Matter (CBM) experiment at the future FAIR facility will investigate the QCD phase diagram at high net baryon densities and moderate temperatures in A+A collisions from 2-11 AGeV (SIS100). Electron identification in CBM will be performed by a Ring Imaging Cherenkov (RICH) detector and Transition Radiation Detectors (TRD).
A real size prototype of the RICH detector was tested together with other CBM prototypes (TRD, Time of Flight) at the CERN PS/T9 beam line in 2014. For the first time the data format used the FLESnet protocol from CBM delivering free streaming data. The analysis was fully performed within the CBMROOT framework. In this contribution the event reconstruction methods which were used for obtained data are discussed. Rings were reconstructed using an algorithm based on the Hough Transform method and their parameters were derived with high accuracy by circle and ellipse fitting procedures. Results of the application of the presented algorithms will be also presented.

External references

• 015