Difference: ImpactParameterResolution (3 vs. 4)

Revision 42009-03-25 - AndreasMoll

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META TOPICPARENT name="SuperBelleOptimization"

Definition

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Simulation and Reconstruction

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The impact parameter resolution studies presented here were done for the parameters d0 and z0 using the software tools MOKKA and Marlin.
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The impact parameter resolution studies presented here are done for the parameters d0 and z0 using the software tools MOKKA and Marlin. The simulated SBelle detector consists of the subdetectors PXD, CDC and SVD. For the PXD subdetector different variations in terms of number of pixels per ladder and number of layers are available. The combination of a specific PXD with the CDC and SVD subdetectors is called a detector model. A summary of the detector models that are currently available gives: Detector Models.
 
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The detector response of the SBelle detector consisting of the subdetectors PXD, CDC and SVD was simulated using a particle gun. The particles fired were μ+ having uniformly distributed φ angles in the range [-180°, 180°]. The different θ angles and energies used are given in the following table:
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The detector response of the SBelle detector is simulated using a particle gun. The particles fired are μ+ having uniformly distributed φ angles in the range [-180°, 180°]. The θ angles and energies used are given in the following table:
 
  0.1 [GeV] 0.2 [GeV] 0.4 [GeV] 0.6 [GeV] 0.8 [GeV] 1.0 [GeV] 2.0 [GeV]
20° Warning, important Not used, slanted parts are not yet implemented in track fitting code
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60° done done done done done done done
80° done done done done done done done
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The various detector models simulated with MOKKA are summarized here: Detector Models
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For each combination of the given angles and energies 1000 events are simulated.
 
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The hits which were created by MOKKA in the three subdetectors are then digitized in Marlin using highly advanced algorithms. For the PXD and CDC a newly developed pixel vertex digitizer and for the SVD a slightly modified version of the original ILD TPC digitizer is used. After digitization, a tracking procedure and a Kalman based fit are applied. The result are tracks carrying the required impact parameter information.
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The hits which are created by MOKKA in the three subdetectors are then digitized in Marlin using highly advanced algorithms. For the PXD and CDC a newly developed pixel vertex digitizer and for the SVD a slightly modified version of the original ILD TPC digitizer is used. After digitization, a tracking procedure and a Kalman based fit are applied. The result are tracks carrying the required impact parameter information.
 

Analysis

 
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