Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
1998-08-10
Nucl.Instrum.Meth. A426 (1999) 283-331
Physics
High Energy Physics
High Energy Physics - Experiment
67 pages, 23 figures
Scientific paper
10.1016/S0168-9002(99)00019-4
We study the reconstruction and particle identification (PID) problem for Ring Imaging devices providing a good knowledge of the direction of the Cerenkov photons, as the DIRC system, on which we specialize. We advocate first the use of the stereographic projection as a tool allowing a suitable representation of the photon data, as it allows to represent the Cerenkov cone always as a circle. We set up an algorithm able to perform reliably a fit of circle arcs of small angular opening, by minimising a true Chi2 expression. The system we develop for PID relies on this algorithm and on a procedure able to remove background photons with a high efficiency. We thus show that, even when the background is large, it is possible to perform an efficient PID by means of a fit algorithm which finally provides all the circle parameters; these are connected with the charged track direction and its Cerenkov angle. It is shown that background effects can be dealt without spoiling significantly the reconstruction probability distributions.
Benayoun Maurice
Buono Del L.
Leruste Ph.
No associations
LandOfFree
Reconstruction and Particle Identification for a DIRC System does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Reconstruction and Particle Identification for a DIRC System, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reconstruction and Particle Identification for a DIRC System will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-256645