#include <TauDecay_CMSSW.h>

Inheritance diagram for TauDecay_CMSSW:

Public Member Functions
bool	AnalyzeTau (HepMC::GenParticle *Tau, unsigned int &MODE_ID, unsigned int &TauBitMask, bool dores=true, bool dopi0=true)

std::vector< unsigned int >	Get_MotherIdx ()

std::vector< HepMC::GenParticle * >	Get_TauDecayProducts ()

	TauDecay_CMSSW ()

	~TauDecay_CMSSW ()

Public Member Functions inherited from TauDecay
void	ClassifyDecayMode (unsigned int &MODE_ID, unsigned int &TauBitMask)

bool	hasResonance (unsigned int &TauBitMask, int pdgid)

bool	isTauFinalStateParticle (int pdgid)

bool	isTauParticleCounter (int pdgid)

bool	isTauResonanceCounter (int pdgid)

unsigned int	nPi0 (unsigned int &TauBitMask)

unsigned int	nProng (unsigned int &TauBitMask)

void	Reset ()

	TauDecay ()

	~TauDecay ()

Private Member Functions
void	AddPi0Info (HepMC::GenParticle *Particle, unsigned int midx)

void	Analyze (HepMC::GenParticle *Particle, unsigned int midx, bool dores, bool dopi0)

Private Attributes
unsigned int	MODE_ID

std::vector< unsigned int >	MotherIdx

unsigned int	TauBitMask

std::vector< HepMC::GenParticle * >	TauDecayProducts

Additional Inherited Members
Public Types inherited from TauDecay
enum	MODE { MODE_UNKNOWN = 0, MODE_ELECTRON, MODE_MUON, MODE_PION, MODE_PIPI0, MODE_3PI, MODE_PI2PI0, MODE_KAON, MODE_K0PI, MODE_KPI0, MODE_3PIPI0, MODE_PI3PI0, MODE_3PI2PI0, MODE_5PI, MODE_5PIPI0, MODE_3PI3PI0, MODE_KPIK, MODE_K0BK0PI, MODE_KK0BPI0, MODE_K2PI0, MODE_KPIPI, MODE_PIK0PI0, MODE_ETAPIPI0, MODE_PIPI0GAM, MODE_KK0B, MODE_PI4PI0, MODE_3PIETA, MODE_PI2PI0ETA, MODE_PI2PI0OMEGA, MODE_3PIOMEGA, MODE_KOMEGA, MODE_K3PI0, MODE_K2PIPI0, MODE_KETA, MODE_K0PI2PI0, MODE_K03PI, MODE_2K0PIPI0, MODE_KPIKPI0, NMODEID }

enum	TauDecayStructure { other = 0, OneProng = 1, ThreeProng = 2, FiveProng = 4, OnePi0 = 8, TwoPi0 = 32, ThreePi0 = 64, Res_a1_pm = 128, Res_a1_0 = 256, Res_rho_pm = 512, Res_rho_0 = 1024, Res_eta = 2048, Res_omega = 4096, Res_Kstar_pm = 8192, Res_Kstar_0 = 16384, KS0_to_pipi = 32768 }

Static Public Member Functions inherited from TauDecay
static std::string	DecayMode (unsigned int &MODE_ID)

Detailed Description

Definition at line 30 of file TauDecay_CMSSW.h.

Constructor & Destructor Documentation

TauDecay_CMSSW::TauDecay_CMSSW ( )

Definition at line 7 of file TauDecay_CMSSW.cc.

7 : TauDecay() {}

TauDecay::TauDecay

TauDecay()

Definition: TauDecay.cc:7

TauDecay_CMSSW::~TauDecay_CMSSW ( )

Definition at line 9 of file TauDecay_CMSSW.cc.

9 {}

Member Function Documentation

void TauDecay_CMSSW::AddPi0Info	(	HepMC::GenParticle *	Particle,
		unsigned int	midx
	)

private

Definition at line 56 of file TauDecay_CMSSW.cc.

References class-composition::children, MotherIdx, and TauDecayProducts.

Referenced by Get_MotherIdx().

                                                                              {
   if (Particle->status() == 1) {
     TauDecayProducts.push_back(Particle);
     MotherIdx.push_back(midx);
     return;
   }
   HepMC::GenVertex::particle_iterator des;
   for (des = Particle->end_vertex()->particles_begin(HepMC::children);
        des != Particle->end_vertex()->particles_end(HepMC::children);
        ++des) {
     AddPi0Info((*des), midx);
   }
 }

void TauDecay_CMSSW::Analyze	(	HepMC::GenParticle *	Particle,
		unsigned int	midx,
		bool	dores,
		bool	dopi0
	)

private

Definition at line 32 of file TauDecay_CMSSW.cc.

References funct::abs(), class-composition::children, gather_cfg::cout, TauDecay::isTauFinalStateParticle(), TauDecay::isTauParticleCounter(), TauDecay::isTauResonanceCounter(), MotherIdx, EgammaValidation_cff::pdgid, and TauDecayProducts.

Referenced by AnalyzeTau(), and Get_MotherIdx().

                                                                                                   {
   unsigned int pdgid = abs(Particle->pdg_id());
   isTauResonanceCounter(pdgid);
   if (isTauFinalStateParticle(pdgid)) {
     if (!isTauParticleCounter(pdgid))
       std::cout << "TauDecay_CMSSW::Analyze WARNING: Unknow Final State Particle in Tau Decay... " << pdgid
                 << std::endl;
     TauDecayProducts.push_back(Particle);
     MotherIdx.push_back(midx);
     return;
   }
   HepMC::GenVertex::particle_iterator des;
   if (Particle->end_vertex()) {
     for (des = Particle->end_vertex()->particles_begin(HepMC::children);
          des != Particle->end_vertex()->particles_end(HepMC::children) &&
          Particle->end_vertex()->particles_out_size() > 0;
          ++des) {
       Analyze((*des), midx, dores, dopi0);
     }
   } else {
     std::cout << "Unstable particle that is undecayed in Tau decay tree. PDG ID: " << pdgid << std::endl;
   }
 }

bool TauDecay_CMSSW::AnalyzeTau	(	HepMC::GenParticle *	Tau,
		unsigned int &	MODE_ID,
		unsigned int &	TauBitMask,
		bool	dores = `true`,
		bool	dopi0 = `true`
	)

Definition at line 11 of file TauDecay_CMSSW.cc.

References funct::abs(), Analyze(), class-composition::children, TauDecay::ClassifyDecayMode(), MotherIdx, TauDecay::Reset(), PdtPdgMini::tau_minus, and TauDecayProducts.

                                                                                                     {
   Reset();
   MotherIdx.clear();
   TauDecayProducts.clear();
   if (abs(Tau->pdg_id()) == PdtPdgMini::tau_minus) {  // check that it is a tau
     unsigned int Tauidx = TauDecayProducts.size();
     HepMC::GenVertex::particle_iterator des;
     if (Tau->end_vertex()) {
       for (des = Tau->end_vertex()->particles_begin(HepMC::children);
            des != Tau->end_vertex()->particles_end(HepMC::children);
            ++des) {
         Analyze((*des), Tauidx, dores, dopi0);
       }
       ClassifyDecayMode(MODE_ID, TauBitMask);
       return true;
     }
   }
   return false;
 }