| 35 |
|
Pythia (LO). It may also be noted that MC@NLO uses Herwig6 for the |
| 36 |
|
hadronisation, while POWHEG uses Pythia6. |
| 37 |
|
\item Modeling of taus: The alternative sample does not include |
| 38 |
< |
Tauola and is otherwise identical to the Powheg sample. [DONE AT |
| 39 |
< |
7TEV AND FOUND TO BE NEGLIGIBLE] |
| 38 |
> |
Tauola and is otherwise identical to the Powheg sample. |
| 39 |
> |
This effect was studied earlier using 7~TeV samples and found to be negligible. |
| 40 |
|
\item The PDF uncertainty is estimated following the PDF4LHC |
| 41 |
|
recommendations[CITE]. The events are reweighted using alternative |
| 42 |
|
PDF sets for CT10 and MSTW2008 and the uncertainties for each are derived using the |
| 44 |
|
addition, the NNPDF2.1 set with 100 replicas. The central value is |
| 45 |
|
determined from the mean and the uncertainty is derived from the |
| 46 |
|
$1\sigma$ range. The overall uncertainty is derived from the envelope of the |
| 47 |
< |
alternative predictions and their uncertainties. [DONE AT 7 TEV AND |
| 48 |
< |
FOUND TO BE NEGLIGIBLE] |
| 49 |
< |
\end{itemize} |
| 47 |
> |
alternative predictions and their uncertainties. |
| 48 |
> |
This effect was studied earlier using 7~TeV samples and found to be negligible. |
| 49 |
> |
\end{itemize} |
| 50 |
|
|
| 51 |
|
|
| 52 |
|
\begin{figure}[hbt] |
