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stracking.param 3.12 KiB
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  • ; sos pattern recognition and tracking code parameters
    ; sminhit(i)   minimum number of hits in each space point (one for each chamber)
    ; smin_combos(i) minimum number of pairs in each space point ( one per chamber)
    ; sspace_point_criterion(i) minimum separation of distinct space points
    ;
    	smax_pr_hits = 25, 25
            smin_hit =      5, 5
            smin_combos =   6, 6
            sspace_point_criterion = 1.2, 1.2 
    ;
    ; The following four criteria are applied to the stub fit results at the
    ; focal plane position to link stubs to tracks
    ; sxt_track_criterion  
    ; syt_track_criterion
    ; sxpt_track_criterion
    ; sypt_track_criterion
           sxt_track_criterion  = 100.
           syt_track_criterion  = 20.
           sxpt_track_criterion = 1.0
           sypt_track_criterion = 1.0
    ; ssingle_stub            If .ne. 0 make a track of all single stubs
      ssingle_stub = 0
    ; turn on/off small angle approximation to left/right decision for y
      sSmallAngleApprox = 1
    ;
    ; Crude track selection criteria in s_physics
    ; ssel_chi2_fpperdegmax   maximum chi2 per degree of freedom for track
      ssel_chi2_fpperdegmax = 9999999.
    ; ssel_dedx1min           minimum dedx to chose best track in scin 1
      ssel_dedx1min = -1000000.
    ; ssel_dedx1max           maximum dedx to chose best track in scin 1
      ssel_dedx1max = 1000000.
    ; ssel_betamin            minimum track beta to chose best track 
      ssel_betamin  = -1000000.
    ; ssel_betamax            maximum track beta to chose best track 
      ssel_betamax  = 1000000.
    ; ssel_etmin              minimum track et to chose best track 
      ssel_etmin = -1000000.
    ; ssel_etmax              maximum track et to chose best track 
      ssel_etmax = 1000000.
    ; ssel_ndegreesmin        minimum number of degrees of freedom for track
      ssel_ndegreesmin = 1
    ; sstat_maxchisq          chisquared limit for tracks used to measure hodo. eff.
      sstat_maxchisq = 10.
    ; sstat_slop              distance from center of scin. to count as expecting hit
    ;              must be < 2 cm. since s1y and s2y scins. are only +/- 2cm in size.
      sstat_slop = 1.
    ; sstat_mineff            warning level for scin. effic.
      sstat_mineff = .95
    ; sstat_cal_maxchisq      chisquared limit for tracks used to measure cal. eff.
      sstat_cal_maxchisq = 10.
    ; sstat_cal_slop          distance from center of block to count as expecting hit
      sstat_cal_slop = 2.
    ; scer_min_eff            warning level for cerenkov effic.
      scer_min_eff = .90
    ; scer_threshold          threshold for good hit (for measureing effic.)
      scer_threshold = 0.5
    ; sdc_min_eff             warning level for dc raw effic.(1 per plane)
      sdc_min_eff = .96,.96,.96,.96,.96,.96
                    .96,.96,.96,.96,.96,.96
    ; sdc_min_wire_eff        warning level for wire effic, measured using tracking
      sdc_min_wire_eff = .85
    ; sdc_min_plane_eff       warning level for plane effic, measured using tracking
      sdc_min_plane_eff = .95,.95,.95,.95,.95,.95
                          .95,.95,.95,.95,.95,.95
      sxloscin  = 2, 3
      sxhiscin  = 8, 14
      syloscin  = 2, 2
      syhiscin  = 8, 8
    ;  strack_eff_test_scin_planes is the number of planes nec needed to 
    ;  set sweet spot to true. 4 is extra clean, 3 is good enough for e-'s.
      strack_eff_test_num_scin_planes = 4