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//--------------------------------------------------------------------------------------------------
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// $Id: Conversion.h,v 1.10 2008/11/14 14:46:35 bendavid Exp $
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//
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// Conversion
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//
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// Details to be worked out...
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//
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// Authors: J.Bendavid
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//--------------------------------------------------------------------------------------------------
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#ifndef MITANA_DATATREE_CONVERSION_H
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#define MITANA_DATATREE_CONVERSION_H
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#include "MitAna/DataTree/interface/CompositeParticle.h"
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#include "MitAna/DataTree/interface/Vertex.h"
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#include "MitAna/DataTree/interface/Electron.h"
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namespace mithep
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{
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class Conversion : public CompositeParticle
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{
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public:
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Conversion() : fVertex(0,0,0) {}
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Conversion(Double_t x, Double_t y, Double_t z) : fVertex(x,y,z) {}
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Conversion(Double_t x, Double_t y, Double_t z, Double_t xErr, Double_t yErr, Double_t zErr) :
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fVertex(x,y,z,xErr,yErr,zErr) {}
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~Conversion() {}
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const Electron *Daughter(UInt_t i) const;
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Double_t DCotTheta() const { return fDCotTheta; }
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Double_t EOverP() const { return fEOverP; }
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Double_t PairMass() const { return fPairMass; }
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const ThreeVector &PairMomentum() const { return fPairMomentum; }
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const Vertex &DecayVertex() const { return fVertex; }
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Vertex &DecayVertex() { return fVertex; }
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EObjType ObjType() const { return kConversion; }
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void SetDCotTheta(Double_t dCotTh) { fDCotTheta = dCotTh; }
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void SetEOverP(Double_t eOverP) { fEOverP = eOverP; }
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void SetPairMass(Double_t pairMass) { fPairMass = pairMass; }
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void SetPairMomentum(Double_t px, Double_t py, Double_t pz);
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protected:
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Vertex fVertex; //reconstructed decay vertex
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Double32_t fDCotTheta; //delta cot theta wrt tracks at the conversion point
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Double32_t fEOverP; //energy over momentum of conversion tracks
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Double32_t fPairMass; //mass of electron-positron pair at conversion point
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ThreeVector32 fPairMomentum; //momentum of tracks at conversion point
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ClassDef(Conversion,1) // Conversion class
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};
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}
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//--------------------------------------------------------------------------------------------------
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inline const mithep::Electron *mithep::Conversion::Daughter(UInt_t i) const
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{
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// Return reference to electron daughters.
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return static_cast<const mithep::Electron*>(fDaughters.At(i));
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}
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//--------------------------------------------------------------------------------------------------
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inline void mithep::Conversion::SetPairMomentum(Double_t px, Double_t py, Double_t pz)
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{
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// Set pair momentum.
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fPairMomentum.SetXYZ(px,py,pz);;
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}
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#endif
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