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bendavid |
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// $Id: ProducerConversions.cc,v 1.1 2008/09/17 12:49:48 bendavid Exp $
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bendavid |
1.1 |
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#include "DataFormats/Common/interface/Handle.h"
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#include "DataFormats/TrackReco/interface/Track.h"
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#include "DataFormats/TrackReco/interface/TrackFwd.h"
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#include "MitEdm/DataFormats/interface/Types.h"
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#include "MitEdm/DataFormats/interface/CollectionsEdm.h"
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#include "MitEdm/DataFormats/interface/DecayPart.h"
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#include "MitEdm/DataFormats/interface/StablePart.h"
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#include "MitEdm/VertexFitInterface/interface/MvfInterface.h"
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#include "MitEdm/Producers/interface/ProducerConversions.h"
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using namespace std;
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using namespace edm;
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using namespace reco;
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using namespace mitedm;
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using namespace mithep;
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//--------------------------------------------------------------------------------------------------
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ProducerConversions::ProducerConversions(const ParameterSet& cfg) :
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BaseCandidate(cfg),
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iStables1_ (cfg.getUntrackedParameter<string>("iStables1","" )),
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iStables2_ (cfg.getUntrackedParameter<string>("iStables2","" )),
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convConstraint_ (cfg.getUntrackedParameter<bool>("convConstraint",false )),
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bendavid |
1.2 |
convConstraint3D_ (cfg.getUntrackedParameter<bool>("convConstraint3D",true )),
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bendavid |
1.1 |
rhoMin_ (cfg.getUntrackedParameter<double>("rhoMin",0.0 ))
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{
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produces<DecayPartCol>();
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}
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//--------------------------------------------------------------------------------------------------
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ProducerConversions::~ProducerConversions()
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{
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}
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//--------------------------------------------------------------------------------------------------
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void ProducerConversions::produce(Event &evt, const EventSetup &setup)
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{
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// -----------------------------------------------------------------------------------------------
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// Get the input
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// -----------------------------------------------------------------------------------------------
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// First input collection
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Handle<StablePartCol> hStables1;
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if (!GetProduct(iStables1_, hStables1, evt))
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return;
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const StablePartCol *pS1 = hStables1.product();
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// Second input collection
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Handle<StablePartCol> hStables2;
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if (!GetProduct(iStables2_, hStables2, evt))
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return;
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const StablePartCol *pS2 = hStables2.product();
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// -----------------------------------------------------------------------------------------------
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// Create the output collection
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// -----------------------------------------------------------------------------------------------
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auto_ptr<DecayPartCol> pD(new DecayPartCol());
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// -----------------------------------------------------------------------------------------------
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// Simple double loop
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// -----------------------------------------------------------------------------------------------
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for (UInt_t i = 0; i<pS1->size(); ++i) {
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const StablePart &s1 = pS1->at(i);
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UInt_t j;
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if (iStables1_ == iStables2_)
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j = i+1;
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else
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j = 0;
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for (; j<pS2->size(); ++j) {
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const StablePart &s2 = pS2->at(j);
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// Vertex fit now, possibly with conversion constraint
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MultiVertexFitter fit;
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if (convConstraint3D_)
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fit.conversion_3d(MultiVertexFitter::VERTEX_1);
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else if (convConstraint_)
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fit.conversion_2d(MultiVertexFitter::VERTEX_1);
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fit.init(3.8); // Reset to the MC magnetic field of 4 Tesla
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MvfInterface fitInt(&fit);
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fitInt.addTrack(s1.track(),1,s1.mass(),MultiVertexFitter::VERTEX_1);
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fitInt.addTrack(s2.track(),2,s2.mass(),MultiVertexFitter::VERTEX_1);
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if (fit.fit()) {
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DecayPart *d = new DecayPart(oPid_,DecayPart::Fast);
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RefToBaseProd<BasePart> baseRef1(hStables1);
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RefToBaseProd<BasePart> baseRef2(hStables2);
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BasePartBaseRef ref1(baseRef1,i);
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BasePartBaseRef ref2(baseRef2,j);
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d->addChild(ref1);
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d->addChild(ref2);
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bendavid |
1.2 |
d->addChildMom(fit.getTrackP4(1));
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d->addChildMom(fit.getTrackP4(2));
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bendavid |
1.1 |
// Update temporarily some of the quantities (prob, chi2, nDoF, mass, lxy, pt, fourMomentum)
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d->setProb(fit.prob());
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d->setChi2(fit.chisq());
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d->setNdof(fit.ndof());
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FourVector p4Fitted(0.,0.,0.,0.);
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p4Fitted += fit.getTrackP4(1);
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p4Fitted += fit.getTrackP4(2);
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d->setFourMomentum(p4Fitted);
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d->setPosition(fit.getVertex (MultiVertexFitter::VERTEX_1));
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d->setError (fit.getErrorMatrix(MultiVertexFitter::VERTEX_1));
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float mass, massErr;
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const int trksIds[2] = { 1, 2 };
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mass = fit.getMass(2,trksIds,massErr);
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if(0) {
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const reco::Track *p1 = s1.track();
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const reco::Track *p2 = s2.track();
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//// create the dimuon system
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FourVector mu1(p1->px(),p1->py(),p1->pz(),sqrt(p1->p()*p1->p()+0.105658357*0.105658357));
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FourVector mu2(p2->px(),p2->py(),p2->pz(),sqrt(p2->p()*p2->p()+0.105658357*0.105658357));
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FourVector diMu = mu1+mu2;
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//// for convenience and economy
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double mass4Vec = sqrt(diMu.M2());
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printf(" Generated mass: ....\n");
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printf(" Four vector mass: %14.6f\n",mass4Vec);
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printf(" Fitted mass: %14.6f +- %14.6f\n",mass,massErr);
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}
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d->setFittedMass (mass);
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d->setFittedMassError(massErr);
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// Put the result into our collection
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if (d->position().rho() > rhoMin_)
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pD->push_back(*d);
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delete d;
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}
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}
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}
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// -----------------------------------------------------------------------------------------------
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// Write the collection even if it is empty
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// -----------------------------------------------------------------------------------------------
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// cout << " ProducerConversions::produce - " << pD->size() << " entries collection created -"
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// << " (Pid: " << oPid_ << ")\n";
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evt.put(pD);
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}
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//--------------------------------------------------------------------------------------------------
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void ProducerConversions::beginJob(const EventSetup &setup)
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{
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}
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//--------------------------------------------------------------------------------------------------
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void ProducerConversions::endJob()
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{
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}
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//define this as a plug-in
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DEFINE_FWK_MODULE(ProducerConversions);
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