binned D mass plots                                                                        Kenji Hamano

Last modified : Sep 07, 2005                                              Back to Home Back to privious page

---

Bin definition

D momentum bin (4 bins):
     0.5, 1.0, 1.5, 2.0, 2.5 GeV

Lepton momentum bin (5 bins):
     1.4, 1.6, 1.8, 2.0, 2.2, 2.5 GeV

cosBY bin (4 bins):
     -10, -2.5, -1.1, 1.1, 5


Fixing lepton momentum and cosBY
     1.8 < LepMom < 2.0 GeV
     -1.1 < cosBY < 1.1
D0 mass. 0.5 < DMom < 1.0 GeV
D0 mass. 1.0 < DMom < 1.5 GeV
New D0 mass. 1.0 < DMom < 1.5 GeV
D0 mass. 1.5 < DMom < 2.0 GeV
D0 mass. 2.0 < DMom < 2.5 GeV
New D0 mass. D momentum dependence

Fixing D momentum and cosBY
     1.0 < DMom < 1.5 GeV
     -1.1 < cosBY < 1.1
D0 mass. 1.4 < LepMom < 1.6
D0 mass. 1.6 < LepMom < 1.8
D0 mass. 1.8 < LepMom < 2.0
New D0 mass. 1.8 < LepMom < 2.0
D0 mass. 2.0 < LepMom < 2.2
D0 mass. 2.2 < LepMom < 2.5
New D0 mass. lepton momentum dependence, 1.4 < LepMom < 2.2

Fixing D momentum and lepton momentum
     1.0 < DMom < 1.5 GeV
     1.8 < LepMom < 2.0 GeV
D0 mass. -10 < cosBY < -2.5
D0 mass. -2.5 < cosBY < -1.1
D0 mass. -1.1 < cosBY < 1.1
New D0 mass. -1.1 < cosBY < 1.1
D0 mass. 1.1 < cosBY < 5
New D0 mass. cosBY dependence


Yield in the bin:
     1.0 < DMom < 1.5 GeV
     1.8 < LepMom < 2.0 GeV
     -1.1 < cosBY < 1.1

D0->Kpi
New D0 mass plot of this bin
Number of Dl candidates in this bin and 1.845 < DMass < 1.885
   Signal : 6015, Background : 5328
  Approximately
   Bp->Dlnu : 362
   Bp->D*lnu : 3046
   Bp->D**lnu : 24
   Bp->D/D*/D** Pilnu : 36
   B0->D*lnu : 2513
   B0->D**lnu : 39
   B0->D/D*/D** Pilnu : 61
Number of Dl candidates per event such that one of the candidates in the event is in this bin and 1.845 < DMass < 1.885:
nDl plot for this bin
Number of selected signal Dl candidates per event
nDl plot for selected signal Dl candidates
Average candidates per event is 6015/5075 = 1.1852, the yield is
   Signal : 5075 events, Background : 4495 events.
This is for 25 fb-1 of data (MC). Run1-4 data has 210 fb-1 of luminosity, so the expected yield is
   Signal : 42630 events, Background : 37758 events.
  Approximately
   Bp->Dlnu : 2565
   Bp->D*lnu : 21587
   Bp->D**lnu : 170
   Bp->D/D*/D** Pilnu : 255
   B0->D*lnu : 17810
   B0->D**lnu : 276
   B0->D/D*/D** Pilnu : 432

---

20025/5/16/