Münster 2017 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HK: Fachverband Physik der Hadronen und Kerne
HK 44: Instrumentation IX
HK 44.6: Vortrag
Donnerstag, 30. März 2017, 15:30–15:45, F 102
PID with the Disc DIRC in PANDA at FAIR — •Mustafa Schmidt, Simon Bodenschatz, Michael Düren, Erik Etzelmüller, Klaus Föhl, Avetik Hayrapetyan, Kristof Kreutzfeldt, and Julian Rieke — JLU Gießen, Gießen, Deutschland
The PANDA detector at the future FAIR facility at GSI is planed as a fixed-target experiment for proton-antiproton collisions at momenta between 1.5 and 15 GeV/c. This talk will mainly cover the Disc DIRC detector, which is placed at the forward endcap of the PANDA target spectrometer and is going to provide a 4σ separation of pions and kaons up to a momentum of 4 GeV/c for θ angles from 5∘/10∘ and 22∘.
This new detector concept requires the development of dedicated reconstruction and PID algorithms, which permit an efficient analysis of the measured time-correlated photon patterns. The online reconstruction is planed to be performed with a single FPGA card calculating the Cherenkov angle from the measured hit pattern and related tracking information for each event with a rate of more than 20 MHz.
Time and event based Monte-Carlo simulations within the PandaROOT framework have been used to analyse the evaluate the PID performance for high momentum particles. In order to determine the overall performance near to real PANDA conditions, the benchmark channel pp → f0π0 → K+K− with stuitable background events has been studied by taking all additional tracking information into account. Results from various testbeams during the last years were used to validate the PID performance for the desired momentum range.