cosBY problem                                                                        Kenji Hamano

Last modified : May 09, 2007                                              Back to Home Back to privious page

---

Beam energy correction
Measured m_ES is here.

---

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

Before Fit
Fit result

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

---

After Fit
Fix FakeL_Dch
Fit result
MINOS STATUS=SUCCESSFUL

*** Relative BF ********
BF(B+ -> Dlnu) = 25.3965 +- 0.927696 (3.65285 %)
BF(B+ -> D*lnu) = 53.0416 +- 1.41062 (2.65946 %)
BF(B+ -> D**Pilnu) = 21.5619 +- 1.09069 (5.05842 %)

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

(G) = Gaussian constrained.

	before fit	non scaled cosBY	scaled cosBY
chi-sq / ndof	409 / 230	244 / 216 (230-14)	217 / 215 (229-14)
Dlnu slope	1.4	1.34105 +- 0.068993 (5.14468 %)	1.35933 +- 0.0668075 (4.91475 %)
D*lnu slope	1.145	1.41937 +- 0.0796623 (5.61251 %)	1.36549 +- 0.0781706 (5.72472 %)
D*lnu R1	1.396	1.43731 +- 0.113598 (7.90353 %)	1.50993 +- 0.116136 (7.69147 %)
D*lnu R2	0.885	0.566554 +- 0.106873 (18.8638 %)	0.613623 +- 0.102568 (16.7151 %)
BF(Bp->Dlnu)	0.0210	0.0257158 +- 0.000940873 (3.65874 %)	0.0258767 +- 0.000945235 (3.65285 %)
BF(Bp->D*lnu)	0.0560	0.0572066 +- 0.00151974 (2.65658 %)	0.0540444 +- 0.00143729 (2.65946 %)
BF(Bp->D**/D(*)Pilnu)	0.0270	0.0195518 +- 0.00107106 (5.47806 %)	0.0219696 +- 0.00111131 (5.05842 %)
B+ BF sum	0.1040	0.102474	0.101891
BF(D*+->Dpi)	0.677	0.677946 +- 0.00560031 (0.82607 %) (G)	0.678778 +- 0.00547857 (0.807123 %) (G)
BF(D+->Kpipi)	0.0951	0.0914376 +- 0.00238954 (2.6133 %) (G)	0.090584 +- 0.00233555 (2.57833 %) (G)
BF(D0->Kpi)	0.0380	0.0384176 +- 0.000654064 (1.70251 %) (G)	0.0384828 +- 0.000340195 (0.88402 %) (G)
f_+0	1.024	1.06299 +- 0.0275624 (2.59292 %) (G)	1.06472 +- 0.0223608 (2.10015 %) (G)
UncorrDL(D0)	1.0	1.05225 +- 0.0597149 (5.67499 %)	1.11151 +- 0.0598622 (5.38566 %)
UncorrCL(D0)	1.0	0.964987 +- 0.0826344 (8.56326 %)	0.859146 +- 0.0793735 (9.23865 %)
CascadeL(D0)	1.0	0.906736 +- 0.124627 (13.7446 %)	0.939738 +- 0.123085 (13.0977 %)
FakeL(D0)	1.0	0.741806 +- 0.283796 (38.2574 %)	0.943506 +- 0.276028 (29.2555 %)
UncorrDL(Dch)	1.0	0.909601 +- 0.117724 (12.9424 %)	0.946647 +- 0.119756 (12.6505 %
UncorrCL(Dch)	1.0	0.872985 +- 0.140697 (16.1168 %)	0.828993 +- 0.130221 (15.7084 %)
CascadeL(Dch)	1.0	1.42962 +- 0.266714 (18.6563 %)	1.48657 +- 0.262545 (17.6611 %)
FakeL(Dch)	1.0	1.0 (Fixed)	1.0 (Fixed)

---

cosBY binning effect
(Nominal) 5 bins (-20, -5, -2, 0, 2, 10) (Fit result)
(1) 5 bins (-20, -5.5, -2, 0, 2, 10) (Fit result)
(2) 5 bins (-20, -5.5, -2, 0, 1.5, 10) (Fit result)
(3) 5 bins (-20, -5.5, -1.5, 0, 1.5, 10) (Fit result)
(4) 5 bins (-20, -5.5, -1.5, 0, 1.0, 10) (Fit result)
(5) 6 bins (-20, -5.5, -2, -0.5, 0.5, 2, 10) (Fit result)

Sys Err (%)	chi-sq / ndof	D slope	D* slope	D* R1	D* R2	BF(Dlnu)	BF(D*lnu)	BF(DDPilnu)
Nominal	217 / 215
Binning (1)	215 / 214
Binning (2)	227 / 216	-0.159666 %	-0.897028 %	-1.17615 %	4.81465 %	1.42705 %	-0.208573 %	-1.16776 %
Binning (3)	232 / 223	-1.24851 %	1.77009 %	2.56238 %	-3.45537 %	1.38137 %	0.619687 %	-3.15144 %
Binning (4)	238 / 224	-2.07748	-0.722429	0.376202	3.87655	1.03308	1.02182	-3.73046
Binning (5)	296 / 264	-1.32189 %	-0.132833 %	-2.35811 %	4.29017 %	0.564426 %	0.683688 %	-2.34666 %

---