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Vub measurement using recoil of fully reconstructed Bs

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Subject:
From:
Riccardo Faccini <[log in to unmask]>
Date:
20 Apr 2004 08:03:04 -0700 (PDT)Tue, 20 Apr 2004 08:03:04 -0700 (PDT)
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TEXT/PLAIN
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TEXT/PLAIN (110 lines)
Hi,
I have been testing on the mX analysis the Brehm recovery algorithm from
Daniele and Ed.
The result of the fit at the end of the machinery agrees within 2% with
the result without Brehm recovery, with a stat error which is 12% as
opposed to 13%: both efficiency and signal increase by ~10%.
All other numbers are pretty stable.
Detailed diff between result files is at the end of the mail.

I will now start a production with all systematics configurations with
VubAnalysis rf-042004
I think that for this iteration the best is that kerstin submits the
signal jobs with the same tag and with the commands in
http://www.slac.stanford.edu/BFROOT/www/Physics/Analysis/AWG/InclusiveSL/islrecoil/systRecipe/Rec.html


	ciao
	ric

< Vub tot area = 2322.49
< Vcb tot area = 3357.13
< oth tot area = 337.533
<
< Data 1' bin = 268.536 +- 20.3501
< Vub 1' bin = 1796.48 +- 47.0982
< Vcb 1' bin = 327.215 +- 21.8585
< Oth 1' bin = 43.5921 +- 7.97903
---
> Vub tot area = 2476.35
> Vcb tot area = 2716.34
> oth tot area = 278.087
>
> Data 1' bin = 300.869 +- 21.3985
> Vub 1' bin = 1988.6 +- 50.7266
> Vcb 1' bin = 297.889 +- 18.934
> Oth 1' bin = 40.8574 +- 7.10509
48,50c48,50
< Vub comp = 0.0924542 +- 0.0129488
< Vcb comp = 0.293397 +- 0.0162559
< Oth comp = 0.151909 +- 0.102267
---
> Vub comp = 0.0921567 +- 0.0124523
> Vcb comp = 0.368912 +- 0.0203353
> Oth comp = 0.210026 +- 0.131059
53,55c53,55
< Vub fitted 1' bin = 165.91 +- 4.35442(stat MC) +- 21.3484(err fit)
< Vcb fitted 1' bin = 96.004 +- 6.41323(stat MC) +- 5.31919(err fit)
< oth fitted 1' bin = 6.62204 +- 1.21209(stat MC) +- 4.45805(err fit)
---
> Vub fitted 1' bin = 182.393 +- 4.67479(stat MC) +- 22.6713(err fit)
> Vcb fitted 1' bin = 109.895 +- 6.985(stat MC) +- 6.05767(err fit)
> oth fitted 1' bin = 8.58113 +- 1.49226(stat MC) +- 5.35474(err fit)
57,58c57,58
< Vub 1' true = 2340.19
< Vcb 1' true = 3630.4
---
> Vub 1' true = 2490.17
> Vcb 1' true = 4207.31
62,69c62,69
< Vub total MC (lepton cut) = 7242.76
< Vub MC (all cuts) = 2322.49
< Vub MC (all cuts + Chop cut) = 1796.48
< Vub gene total MC (lepton cut) = 7242.76
< Vub gene MC (all cuts) = 2340.19
< Eps_u =  0.323107 +- 0.00549517
< Eps_Cut = 0.767662 +- 0.00873011
< Eps_tot = 0.248037 +- 0.00507463
---
> Vub total MC (lepton cut) = 7419.39
> Vub MC (all cuts) = 2476.35
> Vub MC (all cuts + Chop cut) = 1988.6
> Vub gene total MC (lepton cut) = 7419.39
> Vub gene MC (all cuts) = 2490.17
> Eps_u =  0.335631 +- 0.00548216
> Eps_Cut = 0.798578 +- 0.00803706
> Eps_tot = 0.268027 +- 0.00514225
74c74
< Nsl = 32173.9
---
> Nsl = 33346.3
76,78c76,78
< Nsl MC = 116060
< Nsl - BG = 108900
< (Nsl - BG)/Nsl (vub corrected) = 0.939234
---
> Nsl MC = 21579.6
> Nsl - BG = 20198
> (Nsl - BG)/Nsl (vub corrected) = 0.93694
83,84c83,84
< Eff on Vcb (Nvcb/(Nsl-BGsl)) = 0.0325946 +- 0.00180594
< Eff on other (other/(Nsl-BGsl)) = 0.00169677 +- 0.00114228
---
> Eff on Vcb (Nvcb/(Nsl-BGsl)) = 0.0320736 +- 0.00176797
> Eff on other (other/(Nsl-BGsl)) = 0.00186937 +- 0.00116651
87c87
< Nsig = 668.89 +- 86.0693
---
> Nsig = 680.502 +- 84.5857
90c90
< BRBR = 0.0196388 +- 0.00252701(stat) +- 0.000921929(MC stat)
---
> BRBR = 0.0193245 +- 0.00240201(stat) +- 0.000902375(MC stat)
92c92
< Chi Square of the Fit = 0.651581
---
> Chi Square of the Fit = 0.656056




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