Using the tag and mistag rates that we have now, I have calculated the predicted number of W+soft dilepton events in the 1 fb-1 sample.  The calculation is slightly different for the same and opposite flavor dilepton cases. We will show the dielectron case as the same-sign example.

Lepton 1	Lepton 2	Normalization
el	el	R21(ej,ej)*N(ej)+R21(eDY,eDY)*N(eDY)
el	eh	R21(el,eh)*N(eh)
eh	eh	R21(eh,eh)*N(eh)

The notation used is as follows

• e=electron, m=muon
• l=light, h=heavy
• j=W+jets, DY=Drell Yan
• R21(a,b) = N(a+b)/N(b) [from MC]

Below is the different flavor case.

Lepton 1	Lepton 2	Normalization
el	ml	R21(mj,ej)*N(mj)+R21(mDY,eDY)*N(mDY)
el	mh	R21(el,mh)*N(mh)
eh	ml	R21(ml,eh)*N(eh)
eh	mh	R21(eh,mh)*N(mh)

The results are below.

TCE first.

Trigger	Final State	Component	N
TCE	ee	el el	101.6
		el eh	38.4
		eh eh	86.5
		Total BG	226
		Observed	340
TCE	mm	ml ml	0.9
		ml mh	1.2
		mh mh	14.8
		Total BG	16.9
		Observed	30
TCE	em	el ml	23.7
		el mh	14.5
		eh ml	2.8
		eh mh	51.7
		Total BG	92.7
		Observed	34

CMUP next.

Trigger	Final State	Component	N
CMUP	ee	el el	30.4
		el eh	38.4
		eh eh	88.4
		Total BG	157.1
		Observed	244
CMUP	mm	ml ml	9.7
		ml mh	0.6
		mh mh	6.8
		Total BG	17.2
		Observed	12
CMUP	em	el ml	12.3
		el mh	7.4
		eh ml	2.8
		eh mh	24.3
		Total BG	46.8
		Observed	29

And finally, CMX.

Trigger	Final State	Component	N
CMX	ee	el el	20.2
		el eh	21.6
		eh eh	46.4
		Total BG	88.2
		Observed	120
CMX	mm	ml ml	6.3
		ml mh	0.3
		mh mh	4.1
		Total BG	10.8
		Observed	8
CMX	em	el ml	8.5
		el mh	4.5
		eh ml	1.6
		eh mh	14.7
		Total BG	29.3
		Observed	17