TAttParticle

class description - source file - inheritance tree

class TAttParticle : public TNamed


    public:

              TAttParticle TAttParticle()
              TAttParticle TAttParticle(const char* name, const char* title, Double_t Mass, Bool_t Stable, Double_t DecayWidth, Double_t Charge, const char* Type, Int_t MCnumber, Int_t granularity = 90, Double_t LowerCutOff = 1.e-5, Double_t HighCutOff = 1.e4)
              TAttParticle TAttParticle(const TAttParticle&)
              virtual void ~TAttParticle()
            static TClass* Class()
              static Int_t ConvertISAtoPDG(Int_t isaNumber)
               static void DefinePDG()
          virtual Double_t GetCharge() const
          virtual Double_t GetDecayWidth() const
          virtual Double_t GetEnergyCut() const
          virtual Double_t GetEnergyLimit() const
          virtual Double_t GetGranularity() const
          virtual Double_t GetMass() const
             virtual Int_t GetMCNumber() const
      static TAttParticle* GetParticle(const char* name)
      static TAttParticle* GetParticle(Int_t mcnumber)
       virtual const char* GetParticleType() const
            virtual Bool_t GetStable() const
           virtual TClass* IsA() const
              virtual void Print(Option_t* option) const
          virtual Double_t SampleMass() const
          virtual Double_t SampleMass(Double_t widthcut) const
              virtual void ShowMembers(TMemberInspector& insp, char* parent)
              virtual void Streamer(TBuffer& b)
                      void StreamerNVirtual(TBuffer& b)

Data Members

    private:

      Double_t fPDGMass        Mass of the particle in GeV/c2
        Bool_t fPDGStable      Logical indicator, if TRUE the particle can not decay
      Double_t fPDGDecayWidth  Life time of the particle in sec.
      Double_t fPDGCharge      Charge of the particle in units of e
       TString fParticleType   Text indicator for the particle family
         Int_t fMCnumberOfPDG  PDG MC number followed by
      Double_t fEnergyCut      Lower energy cut off, the default is 10 keV
      Double_t fEnergyLimit    High energy cut off, the default is 10 TeV
      Double_t fGranularity    Granularity of the fLogEScale

    public:

      static THashList* fgList

Class Description

                                                                      
 TAttParticle                                                          
                                                                      
 Particle definition, partly based on GEANT3 particle definition

TAttParticle()

  Particle definition default constructor

TAttParticle(const char *name, const char *title, Double_t Mass, Bool_t Stable, Double_t DecayWidth, Double_t Charge, const char *Type, Int_t MCnumber, Int_t granularity, Double_t LowerCutOff, Double_t HighCutOff) : TNamed(name,title)

  Particle definition normal constructor. If the particle is set to be
  stable, the decay width parameter does have no meaning and can be set to
  any value. The parameters granularity, LowerCutOff and HighCutOff are
  used for the construction of the mean free path look up tables. The
  granularity will be the number of logwise energy points for which the
  mean free path will be calculated.

~TAttParticle()

  Particle destructor

Int_t ConvertISAtoPDG(Int_t isaNumber)

  Converts the ISAJET Particle number into the PDG MC number

void DefinePDG()

  Defines particles according to the Particle Data Group

  For questions regarding distribution or content of the MC particle
  codes, contact
  Gary Wagman (GSWagman@LBL.BITNET, LBL::GSWagman, or GSWagman@LBL.GOV).
  (510)486-6610

TAttParticle* GetParticle(const char *name)

  Get a pointer to the particle object according to the name given

TAttParticle* GetParticle(Int_t mcnumber)

  Get a pointer to the particle object according to the MC code number

void Print(Option_t *) const

  Print the entire information of this kind of particle

Double_t SampleMass() const

  Samples a mass according to the Breit-Wigner resonance distribution

Double_t SampleMass(Double_t widthcut) const

  Samples a mass in the interval:

  fPDGMass-widthcut*fPDGDecayWidtht - fPDGMass+widthcut*fPDGDecayWidth

  according to the Breit-Wigner resonance distribution

Inline Functions

            Double_t GetCharge() const
            Double_t GetEnergyCut() const
            Double_t GetEnergyLimit() const
            Double_t GetGranularity() const
            Double_t GetDecayWidth() const
            Double_t GetMass() const
               Int_t GetMCNumber() const
         const char* GetParticleType() const
              Bool_t GetStable() const
             TClass* Class()
             TClass* IsA() const
                void ShowMembers(TMemberInspector& insp, char* parent)
                void Streamer(TBuffer& b)
                void StreamerNVirtual(TBuffer& b)
        TAttParticle TAttParticle(const TAttParticle&)

Author: Ola Nordmann 29/09/95
Last update: root/eg:$Name: $:$Id: TAttParticle.cxx,v 1.2 2000/12/13 15:13:46 brun Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *

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