Validation Fitting

Validation fitting results Kenji Hamano

Last modified : Sep 12, 2006 Back to Home Back to privious page

R16b skims Run3 was used.
Data luminosities:

	luminosity	# events	# files
OnPeak	30.630 fb-1	17527801/438622047	877
OffPeak	2.394	659867/31451100	33

MC luminosity

MC mode	cross section	# events	Luminosity	# files
BpBm (1235)	0.525e6 fb	23854196/86492000	164.75	1193
B0B0bar (1237)	0.525e6	17081965/61158000	116.49	855
ccbar (1005)	1.30e6	6127861/57700000	44.385	307
uds (998)	2.09e6	5639210/124040000	59.349	282
tautau (3429)	0.94e6	544465/69852000	74.311	28

Bhabha veto is applied.
KMicroNotPionGTL is applied.
FitDprob > 0.01 and FitBprob > 0.01 are applied.
Thrust cut |cosDlnonDl| < 0.88 is applied

Validation of fitting
Split Run3 MC into two. Create simulated Data from the first half of Run3 MC. Create MC histograms from the second half of the Run3 MC. Fit the simulated data by the MC histograms.
Plots of histograms for validation.
Red is first half MC and black is second half MC.

D momentum (old slope) (D0)
D momentum (new slope) (D0)
From top left to right bottom :
   OnPeak, OffPeak, BpBm_Dlnu, BpBm_D0star, B0B0_D0star, BpBm_D1, B0B0_D1, BpBm_D1prime, B0B0_D1prime, BpBm_D2star, B0B0_D2star, BpBm_DPi, B0B0_DPi, BpBm_DstarPi, B0B0_DstarPi, BpBm_DiffB, B0B0_DiffB, BpBm_DBCascL, B0B0_DBCascL, BpBm_CascL, B0B0_CascL, BpBm_LMisID, B0B0_LMisID, BpBm_Comb, B0B0_Comb, ccbar_RealD, ccbar_Cont, uds_Cont, tautau_Cont, B0B0_Dstar, BpBm_Dstar, BpBm_Dlnu_0th, BpBm_Dlnu_1st, BpBm_Dlnu_2nd, AllMC

D momentum (old slope) (D+)
D momentum (new slope) (D+)
From top left to right bottom :
   OnPeak, OffPeak, B0B0_Dlnu, BpBm_D0star, B0B0_D0star, BpBm_D1, B0B0_D1, BpBm_D1prime, B0B0_D1prime, BpBm_D2star, B0B0_D2star, BpBm_DPi, B0B0_DPi, BpBm_DstarPi, B0B0_DstarPi, BpBm_DiffB, B0B0_DiffB, BpBm_DBCascL, B0B0_DBCascL, BpBm_CascL, B0B0_CascL, BpBm_LMisID, B0B0_LMisID, BpBm_Comb, B0B0_Comb, ccbar_RealD, ccbar_Cont, uds_Cont, tautau_Cont, B0B0_Dstar, BpBm_Dlnu_0th, BpBm_Dlnu_1st, BpBm_Dlnu_2nd, AllMC

Plots before fitting - not yet ready

Lepton momentum (D0KPi)
Lepton momentum (DchKPiPi)
D momentum (D0KPi)
D momentum (DchKPiPi)
cosBY (D0KPi)
cosBY (DchKPiPi)

Lepton momentum : bin by bin (D0KPi)
Lepton momentum : bin by bin (DchKPiPi)
D momentum : bin by bin (D0KPi)
D momentum : bin by bin (DchKPiPi)
cosBY : bin by bin (D0KPi)
cosBY : bin by bin (DchKPiPi)

Case 1 - slope fixed; isospin symmetry for Bp decay and B0 decay.

Fix
     nCandMin = 5
     t_p0 = 1
     B_B0D = B_BpD / t_p0
     B_B0DS = B_BpDS / t_p0
     f_BpDD2 = 37.0/56.0
     f_BpDPiDD0 = 3.0
     f_BpDSPiDDP1 = 20/37
     f_BpDPiDD12 = 110/93
     f_BpDSPiDD12 = 67/93
     inclBpF = 0.104
ISGW2 model for B->Dlnu FF

MINOS successful. Result is here

Branching fractions	SP5/SP6	Fitted results	Normalized BR	Consistency
B->Dlnu	0.0210	0.0210124 +- 0.00074984 (3.56856 %)	0.0207354 +- 0.000739955 (3.56856 %)	consistent
B->D*lnu	0.0560	0.056869 +- 0.00133164 (2.34159 %)	0.0561192 +- 0.00131409 (2.34159 %)	consistent
B->D*/D()Pi lnu	0.0270	0.027508 +- 0.00128786 (4.68175 %)	0.0271454 +- 0.00127088 (4.68175 %)	consistent
Sum	0.1040	0.105389	0.1040
DiffB(D0)	1	0.975391 +- 0.0441922 (4.53071 %)		consistent
DBCascL(D0)	1	1.04322 +- 0.0706739 (6.77458 %)		consistent
CascL(D0)	1	1.02455 +- 0.141753 (13.8356 %)		consistent
LMisID(D0)	1	0.889915 +- 0.207334 (23.2982 %)		consistent
RealD(D0)	1	1.1564 +- 0.058631 (5.07012 %)		+ 2.7 sigma
DiffB(D+)	1	0.858224 +- 0.106353 (12.3922 %)		- 1.3 sigma
DBCascL(D+)	1	1.04725 +- 0.150042 (14.3272 %)		consistent
CascL(D+)	1	1.05908 +- 0.287148 (27.1129 %)		consistent
LMisID(D+)	1	1.02095 +- 0.426964 (41.8202 %)		consistent
RealD(D+)	1	0.972185 +- 0.11802 (12.1397 %)		consistent
f_+0	1	0.99797 +- 0.0346536 (3.47241 %)		consistent
c_+0	1	1.02863 +- 0.0284287 (2.76374 %)		consistent
# of bins	190	190
# of parameters	0	15
# of dof	190	175
Chi-square	202.985	170.27

Plots after fitting - not yet ready

Lepton momentum (D0KPi)
Lepton momentum (DchKPiPi)
D momentum (D0KPi)
D momentum (DchKPiPi)
cosBY (D0KPi)
cosBY (DchKPiPi)

Lepton momentum : bin by bin (D0KPi)
Lepton momentum : bin by bin (DchKPiPi)
D momentum : bin by bin (D0KPi)
D momentum : bin by bin (DchKPiPi)
cosBY : bin by bin (D0KPi)
cosBY : bin by bin (DchKPiPi)

Case 2 - slope standard/old parameterization; isospin symmetry for Bp and B0
Fix
     nCandMin = 5
     t_p0 = 1
     B_B0D = B_BpD / t_p0
     B_B0DS = B_BpDS / t_p0
     f_BDD2 = 37.0/56.0
     f_BpDPiDD0 = 3.0
     f_BpDSPiDDP1 = 20/37
     f_BpDPiDD12 = 110/93
     f_BpDSPiDD12 = 67/93
     inclBpF = 0.104
HQET model for B->Dlnu FF (Old parametrization)
MINOS is successful. Result is here

Case 3 - slope new parameterization; isospin symmetry for Bp and B0
Fix
     nCandMin = 5
     t_p0 = 1
     B_B0D = B_BpD / t_p0
     B_B0DS = B_BpDS / t_p0
     f_BDD2 = 37.0/56.0
     f_BpDPiDD0 = 3.0
     f_BpDSPiDDP1 = 20/37
     f_BpDPiDD12 = 110/93
     f_BpDSPiDD12 = 67/93
     inclBpF = 0.104
HQET model for B->Dlnu FF (New parametrization)
Result is here

Case 4 - slope new parameterization; Float all 5 ratios, isospin symmetry for Bp and B0
Fix
     nCandMin = 5
     t_p0 = 1
     B_B0D = B_BpD / t_p0
     B_B0DS = B_BpDS / t_p0
     inclBpF = 0.104
HQET model for B->Dlnu FF (New parametrization)
MINOS successful. Result is here