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LLRCMS / KLUBAnalysis

Generic KLUB analyzer
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ggHH NLO samples #133

Closed francescobrivio closed 4 years ago

francescobrivio commented 4 years ago

As reported by @l-cadamuro in: https://indico.cern.ch/event/922760/contributions/3885448/attachments/2048961/3433794/HH_powheg_anomalous_weights_2Giu2020.pdf some events of the ggHH NLO samples need to be rejected.

The fix should enter in the skimmers only for NLO ggHH samples as: if ( abs(theBigTree.aMCatNLOweight) > 0.5 ) continue. The fix should be put at the very beginning of the skim: e.g. here for 2016 skimmer

NB The aMCatNLOweight branch (which is genEvt->weight() in LLR ) is not exactly the one that Luca points out in his slides (originalXWGTUP), but the difference of the two weights is actually really small (e.g. 5 different events over 1M, all of them with a very small genWeight) so the aMCatNLOweight branch can be used.

francescobrivio commented 4 years ago

solved by merge of #135