Nominal fit and systematics

Nominal fit and systematics Kenji Hamano

Last modified : Aug 02, 2007 Back to Home Back to privious page

cosBY binning : 5 bins (-20, -5.5, -2, 0, 2, 10)

Before Fit

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

Nominal Fit
Fix FakeL_Dch
Fit result
MINOS

Another fit result

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

Fix R1 = 1.417, R2 = 0.836

D0 BF Gausian constraints to Babar
Fit by fixing D*/D BF to PDG
Fit by fixing D*/D+ BF to PDG and D0 to Babar
Float f_+0 without Gaussian constraint
Fix f_+0=1.037 , float D/D* BF
Fix f_+0=1.037 , Fix D/D* BF to PDG
Fix CascL_Dch=1, Fix f_+0=1.037 , Fix D/D* BF to PDG
Fix R1=1.417, R2=0.836, Fix CascL_Dch=1, Fix f_+0=1.037 , Fix D/D* BF to PDG

Set t_+0=1.0, Others are as nominal fit (Failed)

Electron only
Fix FakeL_Dch
Fit result

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

Muon only
Fix FakeL_Dch
Fit result

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

D0 only
Fix FakeL_Dch
Fit result

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

D+ only
Fix FakeL_Dch
Fit result

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

Electron and D0 only
Fix FakeL_Dch
Fit result

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

Electron and D+ only
Fix FakeL_Dch
Fit result

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

Muon and D0 only
Fix FakeL_Dch
Fit result

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

Muon and D+ only
Fix FakeL_Dch
Fit result

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

Validation Fits
Fake OnPeak data conditions
Fake OnPeak data = BpBm MC + B0B0bar MC + OffPeak data

Results 0 (even and odd)
221001A001
221001A002
221001A003

Results 1 (TRandom1)
221001A001
221001A002
221001A003

Results 2 (TRandom2)
221001A001
221001A002
221001A003

Results 3 (TRandom3)
221001A001
221001A002
221001A003

Results 4 (first half and second half)
221001A001
221001A002
221001A003

ToyMC pull plts with SP5/SP6 setting
    Nominal : biased, chi2/ndf = 216/218
    Fix D+ BF : biased
    Fix D+ and D0 BF : looks OK
    Fix f+0 : biased
    Fix D* BF and f+0 : biased
    Fix D* and D+ BF : biased
    Fix D* and D0 BF : biased
    Fix D*, D+ and D0 BF : looks OK
    Fix All backgrounds : biased, chi2/ndf = 222/224
   To make sure I'm not doing somthing stupid
    Float only D0 BF : looks Ok, chi2/ndf = 225/227
    Float only D+ BF : looks Ok

ToyMC pull plots with nominal fit setting
       rhoD2 = 1.35001
       rho2 = 1.37332
       R1 = 1.5422
       R2 = 0.583565
       B_BpD = 0.0255454
       B_B0D = B_BpD/t_p0 = 0.0238519
       B_BpDS = 0.0528692
       B_B0DS = B_BpDS/t_p0 = 0.0493643
       B_BpDDPiT = 0.021479
       B_DSpDPp = 0.678107
       B_Dp = 0.090797
       B_D0 = 00.0384144
       f_p0 = 1.06453
       UncorrDL_D0 = 1.10144
       UncorrCL_D0 = 0.818121
       CascL_D0 = 0.923864
       UncorrDL_Dch = 0.907394
       UncorrCL_Dch = 0.807212
       CascL_Dch = 1.5091
    Nominal : biased
    Fix D*, D+ and D0 BF : looks OK
Isospin constraint test
    Fix D*, D+ and D0 BF, no Isospin : biased
    Fix D*, D+ and D0 BF, no Isospin, f+0 fixed : looks Ok

ToyMC pull plots with broken isosipin setting
       rhoD2 = 1.3572
       rho2 = 1.3821
       R1 = 1.55144
       R2 = 0.581893
       B_BpD = 0.0268867
       B_B0D = 0.0221152
       B_BpDS = 0.0571093
       B_B0DS = 0.0446046
       B_BpDDPiT = 0.0218164
       B_DSpDPp = 0.677 fixed
       B_Dp = 0.0951 fixed
       B_D0 = 0.0380 fixed
       f_p0 = 1.024 fixed
       UncorrDL_D0 = 1.10342
       UncorrCL_D0 = 0.821928
       CascL_D0 = 0.943686
       UncorrDL_Dch = 0.875485
       UncorrCL_Dch = 0.748362
       CascL_Dch = 1.36046
    No Isospin constraint, f+0 fixed : biased

Systematic Fits
Fit result101
Fit result102
Fit result103
Fit result104
Fit result105
Fit result106
Fit result107
Fit result108
Fit result109
Fit result110
Fit result111
Fit result112
Fit result113
Fit result114
Fit result115
Fit result116
Fit result117
Fit result(Trk)
Fit result(LPID)
Fit result(KPID)

Fit result(R1,R2, no w dependence)

Fit result(Dlnu old slope)
Fit result (Failed)(D*lnu old slope, R1 and R2 are same (CLN))

Isopin problem
Fitting without isospin symmetry constraints
D*/D BF, f_+ all float with Gaussian constraints
Fix D*/D BF, f_+0 to Fitted values
Fix D*/D BF to PDG, float f_+0
Fix D*/D+ BF to PDG and D0 BF to Babar, float f_+0
Fix D*/D BF and f_+0 to PDG (Failed)
Fix D*/D BF and f_+0 to PDG, No Dlnu isospin constraint
Fix D*/D BF and f_+0 = 1.037 to PDG, No Dlnu isospin constraint
Fix D*/D+ BF and f_+0 to PDG, and D0 BF to Babar

D*/D BF, f_+ all float with Gaussian constraints<
D0 only
    Lepton momentum (fitted binning)
    D momentum (fitted binning)
    cosBY (fitted binning)
    Bin by bin (D0)
    Bin by bin (D+)
D+ only
    Lepton momentum (fitted binning)
    D momentum (fitted binning)
    cosBY (fitted binning)
    Bin by bin (D0)
    Bin by bin (D+)
Electron only
Muon only
Electron, D0 only
Electron, D+ only
Muon, D0 only
Muon, D+ only