Systematic Study 3                                                                        Kenji Hamano

Last modified : May 05, 2007                                              Back to Home Back to privious page


Fix f_Dpi/D0* = 0.2 and f_D*pi/D1* = 0.1
to get background constraints conditions
Fit result

   UncorrDL_D0 = 1.04721 +- 0.057775 (5.51705 %)
   UncorrCL_D0 = 0.971522 +- 0.0794962 (8.18265 %)
   CascL_D0 = 0.939273 +- 0.1215 (12.9356 %)
   FakeL_D0 = 0.679085 +- 0.256283 (37.7395 %)
   UncorrDL_Dch = 0.941586 +- 0.119173 (12.6567 %)
   UncorrCL_Dch = 0.902385 +- 0.160268 (17.7604 %)
   CascL_Dch = 1.60245 +- 0.301919 (18.8411 %)
   FakeL_Dch = 0.577396 +- 0.496344 (85.9625 %)


Nominal Fit
Float f_Dpi/D0* and f_D*pi/D1*
Gaussian constraints on backgorunds using above values
Fit result
MINOS

Nominal values :
   D slope = 1.31442 +- 0.0654624 (4.98031 %)
   D* slope = 1.41212 +- 0.0742794 (5.26013 %)
   D* R1 = 1.48208 +- 0.113607 (7.66538 %)
   D* R2 = 0.558407 +- 0.103712 (18.5729 %)
   BF(B+ -> Dlnu) = 24.7368 +- 0.836601 % (3.382 %)
   BF(B+ -> D*lnu) = 55.2949 +- 1.39736 % (2.52711 %)
   BF(B+ -> D**Pilnu) = 19.9683 +- 1.2005 % (6.01205 %)

Plots :
    Lepton momentum (fitted binning)
    D momentum (fitted binning)
    cosBY (fitted binning)
    Bin by bin (D0)
    Bin by bin (D+)




Sys Err (%) D slopeD* slopeD* R1D* R2 BF(Dlnu)BF(D*lnu)BF(DDPilnu)
D** slope (min)0.063804(min)1.75706(min)1.78298(min)-4.83611 (min)-0.727098(min)-0.771172(min)3.03621
(max)-0.595995(max)-2.04921(max)-0.789312(max)2.85729 (max)0.992327(max)1.0938(max)-4.25818
-0.595995-2.04921-1.782984.83611 0.9923271.0938-4.25818
D** B2 -0.2425950.1501660.4217730.845519 0.0129087-0.133820.354576
D** FF sum 0.643482.054701.832194.90947 0.992411.101954.27291
f_D2*/D1 (min)-0.0542315(min)0.0257498(min)0.121585(min)-0.729184 (min)-0.0850717(min)0.0226702(min)0.0426101
(max)0.0401352(max)0.00243485(max)-0.0800623(max)0.506925 (max)0.0752213(max)-0.00119185(max)-0.089884
0.0542315-0.0257498-0.1215850.729184 0.0850717-0.0226702-0.089884
f_D0*DPi/D1D2* (min)0.361868(min)-0.865008(min)-2.41824(min)1.02346 (min)0.260101(min)1.31826(min)-3.97266
(max)-0.31662(max)0.81491(max)2.08656(max)-0.929037 (max)-0.140002(max)-1.01416(max)2.98178
-0.3618680.8650082.41824-1.02346 -0.260101-1.318263.97266
f_D1*D*Pi/D1D2* (min)0.0623017(min)0.683299(min)1.69209(min)1.59244 (min)-0.111721(min)-1.08105(min)3.13196
(max)-0.0585366(max)-0.385702(max)-1.16701(max)-1.1449 (max)0.138488(max)0.843345(max)-2.50689
-0.0623017-0.683299-1.69209-1.59244 0.1384881.08105-3.13196
BF ratios sum 0.37111.102632.953952.02856 0.30671.704995.05957
f_D2* (min)0.118004(min)-0.107857(min)-0.228865(min)0.546423 (min)-0.00235879(min)0.147737(min)-0.406182
(max)-0.0757539(max)0.0859429(max)0.163602(max)-0.397345 (max)0.00490598(max)-0.0930598(max)0.251618
-0.1180040.1078570.228865-0.546423 0.00490598-0.1477370.406182
t_+0 (min)0.0307929(min)-0.0651332(min)-0.0612779(min)0.099939 (min)0.0592782(min)-0.00172015(min)-0.0686706
(max)-0.0323998(max)0.0780741(max)0.0725793(max)-0.136689 (max)-0.0589479(max)0.00115152(max)0.0698362
-0.03239980.07807410.0725793-0.136689 -0.05927820.001720150.0698362
TrkEff & PID -1.677770.2045083.851371.1276 -0.272450.29959-0.492092
Total 1.83892.34465.19365.4595 1.07552.05746.6535
f_Dpi/D0* = 0.02 (min)-0.20007(min)-0.0444263(min)0.185767(min)-0.377783 (min)0.209936(min)0.252997(min)-0.960653
          = 2 (max)0.231303(max)-0.122767(max)-0.128302(max)0.0678131 (max)0.31557(max)0.0323126(max)-0.480407
0.231303-0.122767-0.1857670.377783 0.31557-0.2529970.960653
f_D*pi/D1* = 0 (min)-0.0885782(min)-0.115395(min)-0.210891(min)0.412679 (min)0.234812(min)0.18223(min)-0.795505
          = 2 (max)0.520564(max)0.485904(max)0.734729(max)-1.57631 (max)-0.704725(max)-0.543547(max)2.37817
0.5205640.4859040.734729-1.57631 -0.704725-0.5435472.37817
BF ratio pre-setting 0.569640.501170.757851.62095 0.772150.599542.56486
Total 1.925152.397575.24865.6951 1.32392.14297.1307
PHOTOS
Background BF
BF renormalization
Backgrounf shape?
cosBY beam energy effect?
Binning?


Sysyenatic study fit results

D** slope max
D** slope min
D** Approximation B2
t_p0 max
t_p0 min
f_D1*/D1 max
f_D1*/D1 min
f_D0*DPi/D1D2* max
f_D0*DPi/D1D2* min
f_D1*D*Pi/D1D2* max
f_D1*D*Pi/D1D2* min
f_D2* for D** decay BF max
f_D2* for D** decay BF min
TrkEff & PID


Effect of fixing f_Dpi/D0* = 0.2 and f_D*pi/D1* = 0.1
1. We chnage f_Dpi/D0* = 2 (max) and 0.02 (min), and f_D*pi/D1* = 2 (max) and 0 (min).
   As f_Dpi/D0* = 0 and 0.002 failed, we set 0.02 for minimum.
2. Get backgrounds for each case.
3. Re-do fitting for each backgroud constraints and take changes as systematic errors.

Fit results
f_Dpi/D0* = 2 (max) to get backgrounds and fit results
f_Dpi/D0* = 0.02 (min) to get backgrounds and fit results
f_D*pi/D1* = 2 (max) to get backgrounds and fit results
f_D*pi/D1* = 0 (min) to get backgrounds and fit results