Non-W Background Prediction

Sideband definition

• Region A: Isolation>0.2 and Missing Et<15.
• Region B: Isolation<0.1 and Missing Et<15.
• Region C: Isolation>0.2 and Missing Et>20.
• Region D: Isolation<0.1 and Missing Et>20.

Pre tag fractions of Non W events

• Pretag event counts and fraction of non-W events in the missing transverse energy-lepton isolation sidebands.

Non-W tagged event predictions

• Expected contribution from non-W background assuming the same tag rate in the regions B and D.
• Tagged event counting in the missing transverse energy-lepton isolation sidebands.
• Tagged event rate divided by the number of jets in the bin.
• Non-W background estimate using tage rate per jet extrapolated across all jet bins.
• Non-W background estimate using tagged events in regions A, B and C.