TestPythiaDecays Class Reference

#include <Lukas/TestPythiaDecays/plugins/TestPythiaDecays.cc>

Inheritance diagram for TestPythiaDecays:

Public Member Functions
	TestPythiaDecays (const edm::ParameterSet &)
	~TestPythiaDecays () override
Public Member Functions inherited from edm::stream::EDAnalyzer<>
	EDAnalyzer ()=default
Public Member Functions inherited from edm::stream::EDAnalyzerBase
void	callWhenNewProductsRegistered (std::function< void(BranchDescription const &)> const &func)
	EDAnalyzerBase ()
ModuleDescription const &	moduleDescription () const
	~EDAnalyzerBase () override
Public Member Functions inherited from edm::EDConsumerBase
std::vector< ConsumesInfo >	consumesInfo () const
void	convertCurrentProcessAlias (std::string const &processName)
	Convert "@currentProcess" in InputTag process names to the actual current process name. More...
	EDConsumerBase ()
	EDConsumerBase (EDConsumerBase const &)=delete
	EDConsumerBase (EDConsumerBase &&)=default
ESProxyIndex const *	esGetTokenIndices (edm::Transition iTrans) const
ProductResolverIndexAndSkipBit	indexFrom (EDGetToken, BranchType, TypeID const &) const
void	itemsMayGet (BranchType, std::vector< ProductResolverIndexAndSkipBit > &) const
void	itemsToGet (BranchType, std::vector< ProductResolverIndexAndSkipBit > &) const
std::vector< ProductResolverIndexAndSkipBit > const &	itemsToGetFrom (BranchType iType) const
void	labelsForToken (EDGetToken iToken, Labels &oLabels) const
void	modulesWhoseProductsAreConsumed (std::vector< ModuleDescription const * > &modules, ProductRegistry const &preg, std::map< std::string, ModuleDescription const * > const &labelsToDesc, std::string const &processName) const
EDConsumerBase const &	operator= (EDConsumerBase const &)=delete
EDConsumerBase &	operator= (EDConsumerBase &&)=default
bool	registeredToConsume (ProductResolverIndex, bool, BranchType) const
bool	registeredToConsumeMany (TypeID const &, BranchType) const
ProductResolverIndexAndSkipBit	uncheckedIndexFrom (EDGetToken) const
void	updateLookup (BranchType iBranchType, ProductResolverIndexHelper const &, bool iPrefetchMayGet)
void	updateLookup (eventsetup::ESRecordsToProxyIndices const &)
virtual	~EDConsumerBase () noexcept(false)

Static Public Member Functions
static void	fillDescriptions (edm::ConfigurationDescriptions &descriptions)
Static Public Member Functions inherited from edm::stream::EDAnalyzerBase
static const std::string &	baseType ()
static void	fillDescriptions (ConfigurationDescriptions &descriptions)
static void	prevalidate (ConfigurationDescriptions &descriptions)

Private Member Functions
void	analyze (const edm::Event &, const edm::EventSetup &) override

Private Attributes
std::map< int, TH1D * >	h_br
std::map< int, TH1D * >	h_br_ref
std::map< int, TH1D * >	h_decayVertexRho
std::map< int, TH1D * >	h_decayVertexZ
std::map< int, TH1D * >	h_mass
std::map< int, TH1D * >	h_mass_ref
std::map< int, TH1D * >	h_originVertexRho
std::map< int, TH1D * >	h_originVertexZ
std::map< int, TH1D * >	h_p
std::map< int, TH1D * >	h_plt
std::map< int, TH1D * >	h_plt_ref
std::map< int, TH1D * >	h_v
std::map< int, std::vector< std::string > >	knownDecayModes
std::string	outputFile
std::vector< int >	pids
Pythia8::Pythia *	pythia

Additional Inherited Members
Public Types inherited from edm::stream::EDAnalyzer<>
typedef CacheContexts< T... >	CacheTypes
typedef CacheTypes::GlobalCache	GlobalCache
typedef AbilityChecker< T... >	HasAbility
typedef CacheTypes::LuminosityBlockCache	LuminosityBlockCache
typedef LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >	LuminosityBlockContext
typedef CacheTypes::LuminosityBlockSummaryCache	LuminosityBlockSummaryCache
typedef CacheTypes::RunCache	RunCache
typedef RunContextT< RunCache, GlobalCache >	RunContext
typedef CacheTypes::RunSummaryCache	RunSummaryCache
Public Types inherited from edm::stream::EDAnalyzerBase
typedef EDAnalyzerAdaptorBase	ModuleType
Public Types inherited from edm::EDConsumerBase
typedef ProductLabels	Labels
Protected Member Functions inherited from edm::EDConsumerBase
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	consumes (edm::InputTag const &tag)
EDGetToken	consumes (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	consumes (TypeToGet const &id, edm::InputTag const &tag)
ConsumesCollector	consumesCollector ()
	Use a ConsumesCollector to gather consumes information from helper functions. More...
template<typename ProductType , BranchType B = InEvent>
void	consumesMany ()
void	consumesMany (const TypeToGet &id)
template<BranchType B>
void	consumesMany (const TypeToGet &id)
template<typename ESProduct , typename ESRecord , Transition Tr = Transition::Event>
auto	esConsumes ()
template<typename ESProduct , typename ESRecord , Transition Tr = Transition::Event>
auto	esConsumes (ESInputTag const &tag)
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	mayConsume (edm::InputTag const &tag)
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)

Detailed Description

Description: [one line class summary]

Implementation: [Notes on implementation]

Definition at line 47 of file TestPythiaDecays.cc.

Constructor & Destructor Documentation

TestPythiaDecays::TestPythiaDecays ( const edm::ParameterSet &  iConfig )

explicit

Definition at line 94 of file TestPythiaDecays.cc.

References funct::abs(), b, gather_cfg::cout, ztail::d, beamvalidation::exit(), edm::ParameterSet::getParameter(), h_br, h_br_ref, h_decayVertexRho, h_decayVertexZ, h_mass, h_mass_ref, h_originVertexRho, h_originVertexZ, h_p, h_plt, h_plt_ref, h_v, mps_fire::i, knownDecayModes, label, min(), outputFile, AlCaHLTBitMon_ParallelJobs::p, pids, dumpMFGeometry_cfg::prod, pythia, AlCaHLTBitMon_QueryRunRegistry::string, and w.

                                                                 {
  // output file
  outputFile = iConfig.getParameter<std::string>("outputFile");

  // create pythia8 instance to access particle data
  pythia = new Pythia8::Pythia();
  pythia->init();
  Pythia8::ParticleData pdt = pythia->particleData;

  // which particles will we study?
  pids.push_back(15);   // tau
  pids.push_back(211);  // pi+
  pids.push_back(111);  // pi0
  pids.push_back(130);  // K0L
  pids.push_back(321);  // K+
  pids.push_back(323);  // K*(392)
  pids.push_back(411);  // D+
  pids.push_back(521);  // B+

  // define histograms
  for (size_t i = 0; i < pids.size(); ++i) {
    int pid = abs(pids[i]);

    // get particle data
    if (!pdt.isParticle(pid)) {
      std::cout << "ERROR: BAD PARTICLE, pythia is not aware of pid " << pid << std::endl;
      std::exit(1);
    }
    Pythia8::ParticleDataEntry* pd = pdt.particleDataEntryPtr(pid);

    // mass histograms
    double m0 = pd->m0();
    double w = pd->mWidth();
    double mmin, mmax;
    if (w == 0) {
      mmin = m0 - m0 / 1000.;
      mmax = m0 + m0 / 1000.;
    } else {
      mmin = m0 - 2 * w;
      mmax = m0 + 2 * w;
    }
    std::stringstream strstr;
    strstr << "mass_" << pid;
    h_mass[pid] = new TH1D(strstr.str().c_str(), strstr.str().c_str(), 100, mmin, mmax);
    h_mass_ref[pid] = (TH1D*)(h_mass[pid]->Clone(strstr.str().c_str()));
    h_mass_ref[pid]->SetTitle(h_mass_ref[pid]->GetName());
    if (w == 0)
      h_mass_ref[pid]->Fill(m0);
    else {
      for (int b = 1; b <= h_mass_ref[pid]->GetNbinsX(); ++b) {
        double _val = h_mass_ref[pid]->GetBinCenter(b);
        h_mass_ref[pid]->SetBinContent(b, TMath::BreitWigner(_val, m0, w));
      }
    }

    // p histogram
    strstr.str("");
    strstr << "p_" << pid;
    h_p[pid] = new TH1D(strstr.str().c_str(), strstr.str().c_str(), 100, 0, 20);

    // v histogram
    strstr.str("");
    strstr << "v_" << pid;
    h_v[pid] = new TH1D(strstr.str().c_str(), strstr.str().c_str(), 100, 0, 1.);

    // ctau histograms
    double ctau0 = pd->tau0() / 10.;
    strstr.str("");
    strstr << "plt_" << pid;
    h_plt[pid] = new TH1D(strstr.str().c_str(), strstr.str().c_str(), 100, 0, std::min(5. * ctau0, 500.));
    h_plt_ref[pid] = (TH1D*)(h_plt[pid]->Clone(strstr.str().c_str()));
    h_plt_ref[pid]->SetTitle(h_plt_ref[pid]->GetName());
    for (int b = 1; b <= h_plt_ref[pid]->GetNbinsX(); ++b) {
      double _val = h_plt_ref[pid]->GetBinCenter(b);
      h_plt_ref[pid]->SetBinContent(b, TMath::Exp(-_val / ctau0));  //convert mm to cm
    }

    // br histograms
    strstr.str("");
    strstr << "br_" << pid;
    h_br[pid] = new TH1D(strstr.str().c_str(), strstr.str().c_str(), 0, 0, 0);
    h_br[pid]->SetCanExtend(TH1::kAllAxes);
    h_br_ref[pid] = (TH1D*)(h_br[pid]->Clone(strstr.str().c_str()));
    h_br_ref[pid]->SetTitle(h_br_ref[pid]->GetName());
    knownDecayModes[pid] = std::vector<std::string>();
    for (int d = 0; d < pd->sizeChannels(); ++d) {
      Pythia8::DecayChannel& channel = pd->channel(d);
      std::vector<int> prod;
      for (int p = 0; p < channel.multiplicity(); ++p) {
        int pId = abs(channel.product(p));
        // from FastSimulation/Event/src/KineParticleFilter.cc
        bool particleCut =
            (pId > 10 && pId != 12 && pId != 14 && pId != 16 && pId != 18 && pId != 21 && (pId < 23 || pId > 40) &&
             (pId < 81 || pId > 100) && pId != 2101 && pId != 3101 && pId != 3201 && pId != 1103 && pId != 2103 &&
             pId != 2203 && pId != 3103 && pId != 3203 && pId != 3303);
        if (particleCut)
          prod.push_back(abs(channel.product(p)));
      }
      std::sort(prod.begin(), prod.end());
      strstr.str("");
      for (size_t p = 0; p < prod.size(); ++p) {
        strstr << "_" << prod[p];
      }
      std::string label = strstr.str();
      h_br[pid]->Fill(label.c_str(), 0.);
      h_br_ref[pid]->Fill(label.c_str(), channel.bRatio());
      h_br[pid]->SetEntries(0);
      knownDecayModes[pid].push_back(label);
    }

    // vertex plots
    strstr.str("");
    strstr << "originVertexRho_" << pid;
    h_originVertexRho[pid] = new TH1D(strstr.str().c_str(), strstr.str().c_str(), 100, 0, 200);
    strstr.str("");
    strstr << "originVertexZ_" << pid;
    h_originVertexZ[pid] = new TH1D(strstr.str().c_str(), strstr.str().c_str(), 100, 0, 400);
    strstr.str("");
    strstr << "decayVertexRho_" << pid;
    h_decayVertexRho[pid] = new TH1D(strstr.str().c_str(), strstr.str().c_str(), 100, 0, 200);
    strstr.str("");
    strstr << "decayVertexZ_" << pid;
    h_decayVertexZ[pid] = new TH1D(strstr.str().c_str(), strstr.str().c_str(), 100, 0, 400);
  }
}

TestPythiaDecays::~TestPythiaDecays ( )

override

Definition at line 220 of file TestPythiaDecays.cc.

References f, h_br, h_br_ref, h_decayVertexRho, h_decayVertexZ, h_mass, h_mass_ref, h_originVertexRho, h_originVertexZ, h_p, h_plt, h_plt_ref, h_v, mps_fire::i, outputFile, and pids.

                                    {
  // do anything here that needs to be done at desctruction time
  // (e.g. close files, deallocate resources etc.)
  TFile* f = TFile::Open(outputFile.c_str(), "RECREATE");
  f->cd();
  f->mkdir("observed");
  f->mkdir("prediction");
  for (size_t i = 0; i < pids.size(); ++i) {
    int pid = pids[i];
    f->cd("observed");
    h_mass[pid]->Write();
    h_plt[pid]->Write();
    h_br[pid]->Write();
    h_originVertexZ[pid]->Write();
    h_originVertexRho[pid]->Write();
    h_decayVertexZ[pid]->Write();
    h_decayVertexRho[pid]->Write();
    h_p[pid]->Write();
    h_v[pid]->Write();
    f->cd("prediction");
    h_mass_ref[pid]->Write();
    h_plt_ref[pid]->Write();
    h_br_ref[pid]->Write();
  }
  f->Close();
}

Member Function Documentation

void TestPythiaDecays::analyze ( const edm::Event &  iEvent, const edm::EventSetup &  iSetup  )

overrideprivate

Definition at line 252 of file TestPythiaDecays.cc.

References funct::abs(), begin, ztail::d, relativeConstraints::empty, end, spr::find(), edm::Event::getByLabel(), h_br, h_br_ref, h_decayVertexRho, h_decayVertexZ, h_mass, h_originVertexRho, h_originVertexZ, h_p, h_plt, h_v, createfilelist::int, dqmiolumiharvest::j, knownDecayModes, label, genParticles_cff::map, EgHLTOffHistBins_cfi::mass, CoreSimTrack::momentum(), SimVertex::noParent(), SimTrack::noVertex(), AlCaHLTBitMon_ParallelJobs::p, class-composition::parent, SimVertex::parentIndex(), pids, CoreSimVertex::position(), dumpMFGeometry_cfg::prod, AlCaHLTBitMon_QueryRunRegistry::string, CoreSimTrack::type(), bphysicsOniaDQM_cfi::vertex, and SimTrack::vertIndex().

                                                                                  {
  using namespace edm;

  Handle<std::vector<SimTrack> > simtracks;
  iEvent.getByLabel("famosSimHits", simtracks);

  Handle<std::vector<SimVertex> > simvertices;
  iEvent.getByLabel("famosSimHits", simvertices);

  // create maps

  // initialize
  std::map<size_t, std::vector<size_t> > childMap;  // child indices vs parent index
  std::map<size_t, int> parentMap;                  // parent index vs child index
  for (size_t j = 0; j < simtracks->size(); j++) {
    childMap[j] = std::vector<size_t>();
    parentMap[j] = -1;
  }

  // do the mapping
  for (size_t j = 0; j < simtracks->size(); j++) {
    size_t childIndex = j;
    const SimTrack& child = simtracks->at(childIndex);
    if (child.noVertex())
      continue;
    const SimVertex& vertex = simvertices->at(child.vertIndex());
    if (vertex.noParent())
      continue;
    size_t parentIndex = vertex.parentIndex();
    childMap[parentIndex].push_back(childIndex);
    parentMap[childIndex] = int(parentIndex);
  }

  for (size_t j = 0; j < simtracks->size(); j++) {
    const SimTrack& parent = simtracks->at(j);
    int pid = abs(parent.type());
    if (std::find(pids.begin(), pids.end(), pid) == pids.end())
      continue;

    // fill mass hist
    double mass = parent.momentum().M();
    h_mass[pid]->Fill(mass);

    // fill p hist
    h_p[pid]->Fill(parent.momentum().P());

    // fill vertex position hist
    if (!parent.noVertex()) {
      const SimVertex& originVertex = simvertices->at(parent.vertIndex());
      h_originVertexRho[pid]->Fill(originVertex.position().Rho());
      h_originVertexZ[pid]->Fill(std::fabs(originVertex.position().Z()));
    }
    if (!childMap[j].empty()) {
      const SimTrack& child = simtracks->at(childMap[j][0]);
      const SimVertex& decayVertex = simvertices->at(child.vertIndex());
      h_decayVertexRho[pid]->Fill(decayVertex.position().Rho());
      h_decayVertexZ[pid]->Fill(std::fabs(decayVertex.position().Z()));
    }
  }

  for (std::map<size_t, std::vector<size_t> >::iterator it = childMap.begin(); it != childMap.end(); ++it) {
    // fill ctau hist
    size_t parentIndex = it->first;
    const SimTrack& parent = simtracks->at(parentIndex);
    int pid = abs(parent.type());
    std::vector<size_t>& childIndices = it->second;
    if (childIndices.empty())
      continue;

    if (std::find(pids.begin(), pids.end(), pid) == pids.end())
      continue;

    const SimVertex& origin_vertex = simvertices->at(parent.vertIndex());
    const SimTrack& child0 = simtracks->at(childIndices[0]);
    const SimVertex& decay_vertex = simvertices->at(child0.vertIndex());

    TLorentzVector lv_origin_vertex(origin_vertex.position().X(),
                                    origin_vertex.position().Y(),
                                    origin_vertex.position().Z(),
                                    origin_vertex.position().T());
    TLorentzVector lv_decay_vertex(decay_vertex.position().X(),
                                   decay_vertex.position().Y(),
                                   decay_vertex.position().Z(),
                                   decay_vertex.position().T());
    TLorentzVector lv_dist = lv_decay_vertex - lv_origin_vertex;
    TLorentzVector lv_parent(
        parent.momentum().Px(), parent.momentum().Py(), parent.momentum().Pz(), parent.momentum().E());
    TVector3 boost = lv_parent.BoostVector();
    lv_dist.Boost(-boost);
    h_v[pid]->Fill(boost.Mag());
    double plt = lv_dist.T();
    h_plt[pid]->Fill(plt);

    // fill br hist
    std::vector<int> prod;
    for (size_t d = 0; d < childIndices.size(); ++d) {
      prod.push_back(abs(simtracks->at(childIndices[d]).type()));
    }
    std::sort(prod.begin(), prod.end());
    std::stringstream strstr;
    for (size_t p = 0; p < prod.size(); ++p) {
      strstr << "_" << prod[p];
    }
    std::string label = strstr.str();
    if (std::find(knownDecayModes[pid].begin(), knownDecayModes[pid].end(), label) == knownDecayModes[pid].end())
      label = "u" + label;
    h_br[pid]->Fill(label.c_str(), 1.);
    h_br_ref[pid]->Fill(label.c_str(), 0.);  // keep h_br and h_br_ref in sync
  }
}

void TestPythiaDecays::fillDescriptions ( edm::ConfigurationDescriptions &  descriptions )

static

Definition at line 396 of file TestPythiaDecays.cc.

References edm::ConfigurationDescriptions::addDefault(), DEFINE_FWK_MODULE, and edm::ParameterSetDescription::setUnknown().

                                                                                  {
  //The following says we do not know what parameters are allowed so do no validation
  // Please change this to state exactly what you do use, even if it is no parameters
  edm::ParameterSetDescription desc;
  desc.setUnknown();
  descriptions.addDefault(desc);
}

Member Data Documentation

std::map<int, TH1D*> TestPythiaDecays::h_br

private

Definition at line 74 of file TestPythiaDecays.cc.

Referenced by analyze(), TestPythiaDecays(), and ~TestPythiaDecays().

std::map<int, TH1D*> TestPythiaDecays::h_br_ref

private

Definition at line 75 of file TestPythiaDecays.cc.

Referenced by analyze(), TestPythiaDecays(), and ~TestPythiaDecays().

std::map<int, TH1D*> TestPythiaDecays::h_decayVertexRho

private

Definition at line 71 of file TestPythiaDecays.cc.

Referenced by analyze(), TestPythiaDecays(), and ~TestPythiaDecays().

std::map<int, TH1D*> TestPythiaDecays::h_decayVertexZ

private

Definition at line 72 of file TestPythiaDecays.cc.

Referenced by analyze(), TestPythiaDecays(), and ~TestPythiaDecays().

std::map<int, TH1D*> TestPythiaDecays::h_mass

private

Definition at line 64 of file TestPythiaDecays.cc.

Referenced by analyze(), TestPythiaDecays(), and ~TestPythiaDecays().

std::map<int, TH1D*> TestPythiaDecays::h_mass_ref

private

Definition at line 67 of file TestPythiaDecays.cc.

Referenced by TestPythiaDecays(), and ~TestPythiaDecays().

std::map<int, TH1D*> TestPythiaDecays::h_originVertexRho

private

Definition at line 69 of file TestPythiaDecays.cc.

Referenced by analyze(), TestPythiaDecays(), and ~TestPythiaDecays().

std::map<int, TH1D*> TestPythiaDecays::h_originVertexZ

private

Definition at line 70 of file TestPythiaDecays.cc.

Referenced by analyze(), TestPythiaDecays(), and ~TestPythiaDecays().

std::map<int, TH1D*> TestPythiaDecays::h_p

private

Definition at line 65 of file TestPythiaDecays.cc.

Referenced by analyze(), TestPythiaDecays(), and ~TestPythiaDecays().

std::map<int, TH1D*> TestPythiaDecays::h_plt

private

Definition at line 68 of file TestPythiaDecays.cc.

Referenced by analyze(), TestPythiaDecays(), and ~TestPythiaDecays().

std::map<int, TH1D*> TestPythiaDecays::h_plt_ref

private

Definition at line 73 of file TestPythiaDecays.cc.

Referenced by TestPythiaDecays(), and ~TestPythiaDecays().

std::map<int, TH1D*> TestPythiaDecays::h_v

private

Definition at line 66 of file TestPythiaDecays.cc.

Referenced by analyze(), TestPythiaDecays(), and ~TestPythiaDecays().

std::map<int, std::vector<std::string> > TestPythiaDecays::knownDecayModes

private

Definition at line 77 of file TestPythiaDecays.cc.

Referenced by analyze(), and TestPythiaDecays().

std::string TestPythiaDecays::outputFile

private

Definition at line 80 of file TestPythiaDecays.cc.

Referenced by TestPythiaDecays(), and ~TestPythiaDecays().

std::vector<int> TestPythiaDecays::pids

private

Definition at line 63 of file TestPythiaDecays.cc.

Referenced by analyze(), TestPythiaDecays(), and ~TestPythiaDecays().

Pythia8::Pythia* TestPythiaDecays::pythia

private

Definition at line 79 of file TestPythiaDecays.cc.

Referenced by TestPythiaDecays().