Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

72X - fix HadronAndPartonSelector for unknown generators #6485

Merged
merged 1 commit into from
Nov 19, 2014
Merged

72X - fix HadronAndPartonSelector for unknown generators #6485

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
21 changes: 11 additions & 10 deletions PhysicsTools/JetMCAlgos/plugins/HadronAndPartonSelector.cc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -10,27 +10,27 @@
* to these particles in the event. The following hadrons are selected:
*
* - b hadrons that do not have other b hadrons as daughters
*
*
* - c hadrons that do not have other c hadrons as daughters
*
*
* Older Fortran Monte Carlo generators (Pythia6 and Herwig6) follow the HEPEVT [1] particle status code convention while
* newer C++ Monte Carlo generators (Pythia8, Herwig++, and Sherpa) follow the HepMC [2] particle status code convention.
* However, both conventions give considerable freedom in defining the status codes of intermediate particle states. Hence,
* the parton selection is generator-dependent and is described in each of the parton selectors separately.
*
*
* Using the provenance information of the GenEventInfoProduct, the producer attempts to automatically determine what generator
* was used to hadronize events and based on that information decides what parton selection mode to use. It is also possible
* to enforce any of the supported parton selection modes.
*
* The selected hadrons and partons are finally used by the JetFlavourClustering producer to determine the jet flavour.
*
*
* The following leptons are selected:
*
*
* - status==1 electrons and muons
*
*
* - status==2 taus
*
*
*
*
* [1] http://cepa.fnal.gov/psm/stdhep/
* [2] http://lcgapp.cern.ch/project/simu/HepMC/
*/
Expand Down Expand Up @@ -147,9 +147,10 @@ HadronAndPartonSelector::produce(edm::Event& iEvent, const edm::EventSetup& iSet
iEvent.getByToken(srcToken_, genEvtInfoProduct);

std::string moduleName = "";
const edm::Provenance& prov = iEvent.getProvenance(genEvtInfoProduct.id());
if( genEvtInfoProduct.isValid() )
if( genEvtInfoProduct.isValid() ) {
const edm::Provenance& prov = iEvent.getProvenance(genEvtInfoProduct.id());
moduleName = edm::moduleName(prov);
}

if( moduleName.find("Pythia6")!=std::string::npos )
partonMode_="Pythia6";
Expand Down