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TRD acceptance definition

TRD acceptance definition. Basic idea:. There are 20 layers of TOF (each has 2 sublayers in Z) One has to use nominal position of tubes (ladders) and define a geometrical cut applied to TrTrack object. What has been done?.

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TRD acceptance definition

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  1. TRD acceptance definition

  2. Basic idea: • There are 20 layers of TOF (each has 2 sublayers in Z) • One has to use nominal position of tubes (ladders) and define a geometrical cut applied to TrTrack object.

  3. What has been done? • Geometrical position of each 5248 tubes was extracted from gbatch geometry. • The contours which corresponds to ladders dimensions has been introduced for each TRD layer ( same contour for 2 sublayers ). • Cut has been implemented in AMS02Cut. • Classname: TrdAcceptanceCut( const char* name, Int_t *p_trk_id, Double_t fiducial)

  4. Tracker tracks on TRD z levels Before TRK TrdAcceptacne cut After TRK TrdAcceptacne cut

  5. TRD hits All hits in event Hits which belongs to TrdTrack

  6. TRD perfomance studies:average number of the TRD Raw hits on TRD track Protons [3, 500] GV, Ntrd Hits in layers [0-3]>2, [4-15]>8, [16-19]>2 Beforte acceptance cut (last week): After acceptance cut: The only way to remove lat-long dependance is ask for R>20 GV events After acceptance and R>20 GV cut:

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