Proposal for modifying vhbb.py and vhbbobj.pj

[veelken]

Dear all,

we would like to propose 3 modifications to vhbb.py and vhbbobj.py for the ttH, H->tautau analysis. We believe the modifications will not introduce any problem for anyone, except for an increase in filesize for some of the samples. Please let us know what you think.

Cheers,

Karl and Christian
for ttH, H->tautau

vhbb.py

1. In the VHbbAnalyzer config we would like to set the flag passall=True to disable the numJets >= 2 cut
   The motivation for this modification is that in the ttH multilepton and ttH, H->tautau analyses we measure the electron charge misidentification rate in Z->ee events. Because the electron charge misidentification rate is very small, we need the full event statistics.
2. We would like to add
   JetAna.lepSelCut = lambda lep : (abs(lep.pdgId()) == 11 and lep.relIso03 < 0.4) or (abs(lep.pdgId()) == 13 and lep.relIso04 < 0.4)
   so that jets don't get cleaned with respect to leptons that pass only the miniIso, but not the standard isolation cuts. In case the jet collection is cleaned with respect to leptons passing the miniIso, about 1% of b-jets get cleaned, which we would like to recover.

vhbbobj.py

3. We would like to replace the line
   NTupleVariable("eleooEmooP", lambda x : abs(1.0/x.ecalEnergy() - x.eSuperClusterOverP()/x.ecalEnergy()) if abs(x.pdgId())==11 and x.ecalEnergy()>0.0 else 9e9 , help="Electron 1/E - 1/P"),
   by
   NTupleVariable("eleooEmooP", lambda x : (1.0/x.ecalEnergy() - x.eSuperClusterOverP()/x.ecalEnergy()) if abs(x.pdgId())==11 and x.ecalEnergy()>0.0 else 9e9 , help="Electron 1/E - 1/P"),
   i.e. remove the abs function. In the ttH multilepton and ttH, H->tautau analyses events with negative 1/E - 1/P values get cut and the presence of the abs in the computation of eleooEmooP means that we cannot do that, causing a problem for us in terms of synchronization with other groups. In our opinion, it is safe to remove the abs function, as it can always be applied later on analysis level.

[veelken]

The modifications are implemented in #564