There have been a few small changes to the analysis since the preblessing:
  1. The Z(mu,mu)+2p Monte Carlo became available and was added to the electroweak background template
  2. A rounding error in the electroweak template normalization was found and fixed.
  3. The ttbar generator shape systematic was quoted as the full shift value, rather than 1/2 the shift value, as was done in Gen4.
The net result of the changes are listed below:
  1. >= 3 Jet cross section value changed from 6.1 pb to 6.0 pb but was unchanged for >= 4 jets.
  2. The "Other EWK" systematic went from 0.3% to 1.0% for >= 3 jets and from 1.3% to 1.1% for >= 4 jets.
  3. The shape component of the ttbar generator systematic went from 1.8% to 0.9% for >= 3 jets and from 0.3% to 0.2% for >= 4 jets.
  4. The total systematic error went from 16.5% to 16.4% for >= 3 jets but was unchanged for >= 4 jets.