RootNTuple output and read-in inconsistent
|Reported by:||Steffen Schumann||Owned by:||Stefan Hoeche|
When reading in NLO events via RootNTuples the generated/calculated cross section does not agree with the original one that generated the NTuple file. I attach a simple run card to see this. When generating the sample first, the xsec is 259pn, when reading it in again it says 304pb. Analysing the events with Rivet it seems as this is not just a flat normalization problem.
Any help with that is appreciated.