Pseudoexperiments

We ran 16,000 PEs to test the fitter and to figure out expected errors on the measurement. The top sample was thrown with a normalization of 6.8 ± 0.8 pb, the Wbb, Wcc, and Wc at 1.5 ± 0.2, Wqq and EW at 1.0 ± 0.1, and QCD at 1.0 ± 0.3. All systematic shifts were thrown at 0.0 ± 1.0 (unit Gaussians).

Pseudoexperiment Generated Values

TopGen
Thrown value for the Top sample in PEs 		WbbGen
Thrown value for the Wbb sample in PEs
WccGen
Thrown value for the Wcc sample in PEs 		WcGen
Thrown value for the Wc sample in PEs
WqqGen
Thrown value for the Wqq sample in PEs 		EWGen
Thrown value for the EW sample in PEs
QCDGen
Thrown value for the QCD sample in PEs 		BtagGen
Thrown value for the Btag uncertainty in PEs
MistagGen
Thrown value for the Mistag uncertainty in PEs 		JESGen
Thrown value for the JES uncertainty in PEs
Q^2Gen
Thrown value for the Q^2 uncertainty in PEs 		IFSRGen
Thrown value for the IFSR uncertainty in PEs

Pseudoexperiment Expected Errors

TopErr
Expected error for the Top sample in PEs 		WbbErr
Expected error for the Wbb sample in PEs
WccErr
Expected error for the Wcc sample in PEs 		WcErr
Expected error for the Wc sample in PEs
WqqErr
Expected error for the Wqq sample in PEs 		EWErr
Expected error for the EW sample in PEs
QCDErr
Expected error for the QCD sample in PEs 		BtagErr
Expected error for the Btag uncertainty in PEs
MistagErr
Expected error for the Mistag uncertainty in PEs 		JESErr
Expected error for the JES uncertainty in PEs
Q^2Err
Expected error for the Q^2 uncertainty in PEs 		IFSRErr
Expected error for the IFSR uncertainty in PEs

Pseudoexperiment Pulls

TopPull
Pull for the Top sample in PEs 		WbbPull
Pull for the Wbb sample in PEs
WccPull
Pull for the Wcc sample in PEs 		WcPull
Pull for the Wc sample in PEs
WqqPull
Pull for the Wqq sample in PEs 		EWPull
Pull for the EW sample in PEs
QCDPull
Pull for the QCD sample in PEs 		BtagPull
Pull for the Btag uncertainty in PEs
MistagPull
Pull for the Mistag uncertainty in PEs 		JESPull
Pull for the JES uncertainty in PEs
Q^2Pull
Pull for the Q^2 uncertainty in PEs 		IFSRPull
Pull for the IFSR uncertainty in PEs

Pseudoexperiments without Q^2

As we suspected Q^2 was causing the problems seen int he W + jets pulls, we ran the PEs without Q^2 as well. They were thrown at the same values, and the resulting plots are below.

Pseudoexperiment Generated Values without Q^2

TopGen No Q^2
Thrown value for the Top sample in PEs without Q^2 		WbbGen No Q^2
Thrown value for the Wbb sample in PEs without Q^2
WccGen No Q^2
Thrown value for the Wcc sample in PEs without Q^2 		WcGen No Q^2
Thrown value for the Wc sample in PEs without Q^2
WqqGen No Q^2
Thrown value for the Wqq sample in PEs without Q^2 		EWGen No Q^2
Thrown value for the EW sample in PEs without Q^2
QCDGen No Q^2
Thrown value for the QCD sample in PEs without Q^2 		BtagGen No Q^2
Thrown value for the Btag uncertainty in PEs without Q^2
MistagGen No Q^2
Thrown value for the Mistag uncertainty in PEs without Q^2 		JESGen No Q^2
Thrown value for the JES uncertainty in PEs without Q^2
IFSRGen No Q^2
Thrown value for the IFSR uncertainty in PEs without Q^2

Pseudoexperiment Expected Errors without Q^2

TopErr No Q^2
Expected error for the Top sample in PEs without Q^2 		WbbErr No Q^2
Expected error for the Wbb sample in PEs without Q^2
WccErr No Q^2
Expected error for the Wcc sample in PEs without Q^2 		WcErr No Q^2
Expected error for the Wc sample in PEs without Q^2
WqqErr No Q^2
Expected error for the Wqq sample in PEs without Q^2 		EWErr No Q^2
Expected error for the EW sample in PEs without Q^2
QCDErr No Q^2
Expected error for the QCD sample in PEs without Q^2 		BtagErr No Q^2
Expected error for the Btag uncertainty in PEs without Q^2
MistagErr No Q^2
Expected error for the Mistag uncertainty in PEs without Q^2 		JESErr No Q^2
Expected error for the JES uncertainty in PEs without Q^2
IFSRErr No Q^2
Expected error for the IFSR uncertainty in PEs without Q^2

Pseudoexperiment Pulls without Q^2

TopPull No Q^2
Pull for the Top sample in PEs without Q^2 		WbbPull No Q^2
Pull for the Wbb sample in PEs without Q^2
WccPull No Q^2
Pull for the Wcc sample in PEs without Q^2 		WcPull No Q^2
Pull for the Wc sample in PEs without Q^2
WqqPull No Q^2
Pull for the Wqq sample in PEs without Q^2 		EWPull No Q^2
Pull for the EW sample in PEs without Q^2
QCDPull No Q^2
Pull for the QCD sample in PEs without Q^2 		BtagPull No Q^2
Pull for the Btag uncertainty in PEs without Q^2
MistagPull No Q^2
Pull for the Mistag uncertainty in PEs without Q^2 		JESPull No Q^2
Pull for the JES uncertainty in PEs without Q^2
IFSRPull No Q^2
Pull for the IFSR uncertainty in PEs without Q^2
Last modified on 04/20/10 by Mark Mathis