Münster 2002 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 14: Poster Session: Instrumentation and Applications

HK 14.37: Poster

Dienstag, 12. März 2002, 10:30–12:45, Foyer Chemie

ROOT-based off-line and on-line analysis of COSY-TOF data^* — •Martin Schulte-Wissermann and Leonhard Karsch — Institut für Kern- und Teilchenphysik, TU Dresden, Germany

The COSY-TOF spectrometer is used to study proton-proton collisions with up to 2.5 GeV kinetic energy. During an experiment which lasts typically several weeks data in the order of 100 GB are stored on tape. Due to the modular setup of the detector, which is optimized for each individual experiment, the data analysis software has to be adapted accordingly.
Using ROOT as the fundamental framework, we have developed a strategy (set of rules) how to efficiently combine the contributions of all collaborators involved in the data analysis. We provide interfaces, data containers, and function libraries which are easy to use, robust, and well documented. The application of these tools in the analysis of COSY-TOF data will be demonstrated.
The usefullness of the whole concept in the on-line supervision and calibration was shown during a recent run. ^* Supported by BMBF and FZJ.