Mixing Fit Dependence on Evts/Exp

Last Update: 07-Sep-05

Index

  1. Generator Files
  2. Fits to True t0
  3. K-Factor Convolution Fits
  4. Lxy Resolution Convolution Fits
  5. Note: entries below marked with "*" discard some outliers - see plots


GENERAL FIT PARAMETERS
N(exps)1000 (100 for K&R-conv fits)
SourcesBs(0.6), Bd(0.3), cc(0.1)
τ(Bs)1.461 ps
dms10 ps-1


FIT RESULTS
SUMMARY PLOTS
Evts/Exp Info Delta(Ms) τ(Bs)
    <fit> rms(fit) <fit err> <fit> rms(fit) <fit err>

Fits to True t0

Likelihood Fits
1000 here 10.00050.03130.0311 1.47880.07240.0728
2500 here 9.99880.01960.0196 1.47530.04710.0459
5000 here 9.99930.01420.0138 1.47450.03280.0324

Chi2 Fits
1000 here 9.99920.04980.0414 ---------
2500 here 9.99850.02680.0227 ---------
5000 here 9.99960.01830.0156 ---------

Fits to True Lxy w/ K-Factor Convolution
 
K Factor:conv using same histo's as gen
Lxy:true
Mixing Tag:true
Pt:Pt(meas)

Lxy Likelihood Fits
1000 here 9.99300.16220.1614 1.46460.07970.0781
2500 here 9.99470.10360.1033 1.46020.05090.0497
5000 here 9.99390.07490.0729 1.46020.03540.0348

VPDL Likelihood Fits
1000 here 9.98220.16180.1649 1.47340.08080.0796
2500 here 9.98370.10350.1038 1.46960.05170.0502
5000 here 9.98310.07510.0733 1.46930.03610.0355

Chi2 Fits
1000 here 9.98240.18360.1531 ---------
2500 here 9.99540.10900.1016 ---------
5000 here 9.99680.07750.0736 ---------

Fits w/ Resolution Convolution
 
K Factor:none - use Pt(B)
Lxy:smeared - 1 Gauss conv (same as gen)
Mixing Tag:smeared: P(mis-tag) = 0.3
Pt:Pt(B)

Lxy Likelihood Fits
1000 here 10.00110.14470.1148 1.48500.07750.0775
2500 here 9.99800.08340.0741 1.47990.04920.0489
5000 here 10.00070.05420.0523 1.47940.03450.0346

VPDL Likelihood Fits
1000 here 10.00100.14450.1171 1.44440.08020.0777
2500 here 9.99800.08440.0754 1.43370.05070.0489
5000 here 10.00120.05550.0527 1.43950.03520.0346

Chi2 Fits
1000 here 10.00110.2370.1556 ---------
2500 here 10.00430.10280.0914 ---------
5000 here 10.00810.06720.0627 ---------

Fits w/ K-Factor and Resolution Convolution
 
K Factor:conv using same histo's as gen
Lxy:smeared - 1 Gauss conv (same as gen)
Mixing Tag:smeared: P(mis-tag) = 0.3
Pt:Pt(meas)

Lxy Likelihood Fits
1000 here 10.30 *0.72 *0.56 * 1.47420.07730.0832
2500 here 10.16920.58210.3630 1.47180.05230.0523
5000 here 10.08550.27890.2654 1.46370.03810.0368

VPDL Likelihood Fits
1000 here 10.28 *0.73 *0.57 * 1.46730.07870.0841
2500 here 10.16430.58220.3639 1.46450.05240.0529
5000 here 10.08270.27830.2683 1.45610.03810.0372

Chi2 Fits
1000 here 10.25 *0.89 *0.54 * ---------
2500 here 10.15410.63570.3903 ---------
5000 here 10.08290.30750.3128 ---------